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体彩20选5最新开奖结果:5-Fluorouracil

Antimetabolite Pharmacokinetics Indications Drug interaction Adverse reactions and precautions Fluorofur Chemical property Uses Methods of production
5-Fluorouracil
5-Fluorouracil structure
CAS No.
51-21-8
Chemical Name:
5-Fluorouracil
Synonyms
FU;Ulup;5-FU;Fluri;Fluril;Arumel;Efudex;Efudix;Efurix;U-8953
CBNumber:
CB8162744
Molecular Formula:
C4H3FN2O2
Formula Weight:
130.08
MOL File:
51-21-8.mol

5-Fluorouracil Properties

Melting point:
282-286 °C (dec.)(lit.)
Boiling point:
190-200°C/0.1mmHg
Density 
1.4593 (estimate)
storage temp. 
Store at 0-5
solubility 
H2O: 10 mg/mL, clear
form 
powder
pka
pKa 8.0±0.1 (H2O) (Uncertain);3.0±0.1(H2O) (Uncertain)
color 
white
PH
4.3-5.3 (10g/l, H2O, 20℃)
Water Solubility 
12.2 g/L 20 ºC
Sensitive 
Air Sensitive
Merck 
14,4181
BRN 
127172
Stability:
Stable. Light sensitive. Combustible. Incompatible with strong oxidizing agents, strong bases.
InChIKey
GHASVSINZRGABV-UHFFFAOYSA-N
CAS DataBase Reference
51-21-8(CAS DataBase Reference)
NIST Chemistry Reference
2,4-Pyrimidinedione, 5-fluoro-(51-21-8)
EPA Substance Registry System
2,4(1H,3H)-Pyrimidinedione, 5-fluoro-(51-21-8)
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS08,GHS06,GHS07
Signal word  Danger
Hazard statements  H302-H341-H360-H373-H315-H319-H301-H351
Precautionary statements  P280-P201-P260-P301+P312a-P501a-P264-P270-P301+P310+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P405-P501
Hazard Codes  Xn,T,C,Xi
Risk Statements  22-20/21/22-52-25
Safety Statements  36-36/37-36/37/39-22-45-26
RIDADR  UN 2811 6.1/PG 3
WGK Germany  3
RTECS  YR0350000
10-23
Hazard Note  Irritant/Highly Toxic
TSCA  T
HazardClass  6.1
PackingGroup  III
HS Code  29335995
Toxicity LD50 orally in Rabbit: 230 mg/kg

5-Fluorouracil price More Price(21)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 03738 5-Fluorouracil analytical standard 51-21-8 100mg $50.7 2018-11-13 Buy
Sigma-Aldrich 04541 5-Fluorouracil certified reference material, TraceCERT 51-21-8 50mg $141 2018-11-13 Buy
TCI Chemical F0151 5-Fluorouracil >99.0%(HPLC)(T) 51-21-8 5g $52 2018-11-22 Buy
TCI Chemical F0151 5-Fluorouracil >99.0%(HPLC)(T) 51-21-8 25g $158 2018-11-22 Buy
Alfa Aesar A13456 5-Fluorouracil, 99% 51-21-8 25g $277 2018-11-13 Buy

5-Fluorouracil Chemical Properties,Uses,Production

Antimetabolite

5-fluorouracil is short for fluorouracil, and is pyrimidine antimetabolites, 5-fluorouracil as fluorouracil for pyrimidine antimetabolites, is currently clinically commonly used a chemotherapy drug, having effect on proliferation, can prevent the thymine formation, inhibition of DNA biosynthesis, thereby inhibiting the growth of cancer cells. Clinically, it is used to treat gastrointestinal tumors, such as stomach cancer, colon cancer, liver cancer and so on. In breast cancer, ovarian cancer, lung cancer, bladder cancer, cervical cancer, pancreatic cancer and so on are also effective. The Swiss production of skin cancer treatment ointment containing 5% of the goods, mainly used for actinic keratoses and senile keratosis, precancerous dermatitis, single and multiple shallow table basal cell carcinoma, radioactive skin lesion of carcinoma and superficial basal cell carcinoma.
5-fluorouracil first changes for 5-Fluoro 2 deoxy urea pyrimidine nucleotides in vivo and inhibition of thymidylate synthase, blocking the transformation of urea pyrimidine deoxyribonucleotide thymidine, which affects DNA biosynthesis. At the same time, it can be incorporation into RNA by blocking urea ethyl pyridine and whey acid was incorporated into the RNA to direct inhibition of RNA synthesis.
This medicine is mainly in the liver metabolism, most of the decomposed into carbon dioxide discharged from breathing, rarely excreted from urine. After oral, absorption is different; vein after administration, concentrations in plasma quickly drop in two hours; static note within 30 minutes can arrive in cerebrospinal fluid (CSF) and maintain for 3 hours; continuous intravenous infusion toxicity is lighter than intravenous injection; vein to the drug's effect is compared with oral high. Toxicity of 5-fluorouracil on the proliferation is greater than non proliferating cells, but no obvious cell cycle specificity. Resistance to 5-FU can increase essential activity of enzyme missing or thymidylate synthetase activity.
The above information is edited by the Chemicalbook Hayan.

Pharmacokinetics

Due to the instability of the absorption of 5-fluorouracil, the conventional the oral (in Europe can be obtained from oral preparation). General intravenous administration, We can also take transarterial Administration in order to directly reach the tumor (e.g. liver metastasis through hepatic artery) and injected directly into the body cavity infiltration liquid (such as ovarian cancer). Intravenous injection plasma half-life is 7.5~10 minutes, after 3 hours the drug in the plasma has not check did not change. Intracellular drug levels are last much longer.
Fluorouracil in the liver is used for metabolism; 60~80% in 8~12 hours as a respiratory carbon dioxide discharge and 15% in 6 hours technical unchanged from the urine discharge. The drug can enter into the exudate and cerebrospinal fluid (CSF). It has existed determination method for plasma fluorouracil.

Indications

It is clinical for breast cancer, digestive tract cancer, ovarian cancer and primary bronchogenic lung adenocarcinoma adjuvant chemotherapy and palliative care; is also in the treatment of malignant hydatidiform mole, choriocarcinoma, serous cancer of effusion in bladder cancer and head and neck malignant tumor and liver cancer chemotherapy drugs.
Dermatological topical containing 5% 5-fluorouracil ointment is used in the treatment of actinic keratosis, actinic cheilitis, Bowen's disease, erythroplasia of Queyrat, Bowenoid papulosis, condyloma acuminatum, vitiligo, lichen amyloidosis, disseminated superficial porokeratosis, warts, flat warts, psoriasis, color of dry skin disease, superficial basal cell epithelioma table etc.; intralesional injection in the treatment of keratoacanthoma keloid.

Drug interaction

Before using this drug, first it is used methotrexate, 5-fluorouracil nucleotide formation is increased by increasing the content of intracellular phosphoribosyl pyrophosphate. Allopurinol can change the role of fluorouracil. Its metabolites, oxypurinol, can inhibit orotate phosphoribosyl transferase and thus reduce the toxicity and may improve the therapeutic index. Increase in thymidine and other nucleoside combination of fluorouracil and RNA and thymidine by dihydropyrimidine dehydrogenase can delay fluorouracil decomposition. However, the drug combination did not significantly improve the clinical effect so far.

Adverse reactions and precautions

The main toxic effect of fluorouracil is involving the gastrointestinal tract and blood cell generation system. Anorexia, nausea and vomiting were common. Stomatitis, pharyngo esophageal inflammation and diarrhea are withdrawal indication, otherwise there will be serious oropharyngeal and intestinal ulcers. Intravenous administration of gastrointestinal toxicity is often limiting dose. On the contrary, huge doses of intravenous injection, white cell reduction is the dose limiting toxicity. Low white cell counts often appear in medication for the first time after 7 to 14 days. Thrombocytopenia is not too obvious, appeared in 7~17. Monitoring of blood cell count is necessary.
Other adverse reactions are hair loss, dermatitis and pigment calm. There were acute and chronic conjunctivitis. Reversible cerebellar ataxia occurs in 1% of patients, possibly is related to the dose, occur at any time of the treatment process (often a few months later). After Cerebellar signs in the withdrawal can be last for a few of weeks. Myocardial ischemia occasionally appeared in the 5-FU intravenous drip. The drug in animals is caused by abnormal and may be carcinogenic.
Damage to the liver function of patients (e.g. extensive liver metastasis) fluorouracil should be reduced; The nutritional status of patients with poor medication should be cautious.
Using daily intermittent intravenous drip for 4~5d, can greatly reduce the toxic effects of blood. However, the results of clinical research mean rapid injection or intravenous drip method in the treatment of superiority. Long term intravenous drip infusion can be accompanied by pain, erythema and skin scaling of hand-foot comprehensive syndrome.
This medicine to FDA pregnancy category D.

Fluorofur

Fluorofur is fluorine urea pyrimidine derivatives, and effect is similar with fluorouracil, but chemotherapy index double higher than fluorouracil and toxicity is only the 1/4 to 1/6 of fluorouracil. It is suitable for gastrointestinal cancer and breast cancer. There are oral, intravenous and anal suppository three formulations.

Chemical property

It is white or white crystalline powder. Mp is 282-283℃ (decomposition), 0.1 mol/L hydrochloric acid solution has maximum absorption at 265nm wavelength. It is slightly soluble in water and ethanol, insoluble in chloroform and ether, soluble in dilute hydrochloric acid and sodium hydroxide solution. Medium toxicity, LD50 (mouse, i.p.) is 230mg/kg.

Uses

1. It is used for biochemical studies and antitumor drugs.
2. It is the anti tumor drug, also used for synthesis of flucytosine. 5-fluorouracil can be used in the study of rice in the biochemical studies, ear differentiation, genetic metabolic measurement, plant growth development research.
3. It is used for the digestive system cancer, head and neck cancer, gynecological cancer, lung cancer, liver cancer, treatment of bladder cancer and skin cancer.
4. Antimetabolite antitumor drugs.
5. Anti tumor drugs. There is a certain effect on a variety of tumors such as digestive tract cancer, breast cancer, ovarian cancer, chorionic epithelial cancer, cervical cancer, hepatocellular carcinoma, bladder cancer, skin cancer (topical), leukoplakia (topical) etc. Adverse reactions mainly are bone marrow transplantation, digestive tract reaction, serious person can have diarrhea, local injection site phlebitis, a few of which have nervous system reactions such as cerebellar degeneration and ataxia. The course of medication should strictly check the blood.

Methods of production

1. It is obtained by fluoride ethyl acetate by condensation, cyclization and hydrolysis.
(1). Condensation, cyclization. Sodium methoxide is input dry stainless steel reaction pot, stirring under vacuum concentration to sodium methoxide into white powder, cooling to 50℃, adding toluene, then cold to below 10℃, dropping ethyl formate. After adding remained below 10℃, dripping ethyl fluoroacetate. Completely, at about 30℃ stirring reaction for 8 hours. Static, obtain pale yellow thick mixture. In the condensation product, adding methanol and methyl isobutyl urea sulfate, stirring and heating to 66-70℃, reflux reaction for 6h. Atmospheric recovering methanol to the reaction material showing a thin paste, then vacuum distilled to viscous so far. Heating, dissolving in water, adding activated charcoal, filtered, and the filtrate with concentrated hydrochloric acid to pH3-4, crystallization, cooling and filtering, use cold water to wash the filter cake, using boiling water to regulate plasma immersion to recognize, filtering, water washing, drying, to 5-fluorouracil (-4-hydroxy-2-four oxygen pyrimidine C5H5FN2O2. (2). The hydrolysis of the cyclization product 5-Fluoro-4-hydroxy-2-methoxy pyrimidine and adding 20% hydrochloric acid in 60℃are hydrolysis for 4h, after processing to obtain 5-fluorouracil.
2. 2-methylthio-5-fluorouracil is under acidic conditions and reflux system to obtain 5-fluorouracil.

Chemical Properties

White or almost white, crystalline powder

Chemical Properties

Fluorouracil is a white crystalline solid. Practically odorless.

Uses

antineoplastic, pyrimidine antimetabolite

Uses

5-Fluoro Uracil is an active metabolite of Doxifluridine (D556750).

Uses

A potent antineoplastic agent in clinical use. Also an inhibitor of DNA synthesis

Indications

Fluorouracil (5-fluorouracil, 5-fluorouracil, Efudex, Adrucil) is a halogenated pyrimidine analogue that must be activated metabolically. The active metabolite that inhibits DNA synthesis is the deoxyribonucleotide 5-fluoro-2'deoxyuridine-S'-phosphate (FdUMP). 5- Fluorouracil is selectively toxic to proliferating rather than non-proliferating cells and is active in both the G1- and S-phases. The target enzyme inhibited by 5-fluorouracilfluorouracil is thymidylate synthetase.
methylenetetrahydrofolate dihydrofolate The carbon-donating cofactor for this reaction is N5,N10 methylenetetrahydrofolate, which is converted to dihydrofolate. The reduced folate cofactor occupies an allosteric site on thymidylate synthetase, which allows for the covalent binding of 5-FdUMP to the active site of the enzyme.

brand name

Adrucil (Pharmacia & Upjohn); Adrucil (Sicor); Carac (Sanofi Aventis); Efudex (Valeant); Fluoroplex (Allergan).

General Description

White to nearly white crystalline powder; practically odorless. Used as an anti neoplastic drug, chemosterilant for insects.

General Description

The drug is available in a 500-mg or 10-mL vial for IV useand as a 1% and 5% topical cream. 5-FU is used in the treatmentof several carcinoma types including breast cancer,colorectal cancer, stomach cancer, pancreatic cancer, andtopical use in basal cell cancer of the skin. The mechanism ofaction includes inhibition of the enzyme TS by the deoxyribosemonophosphate metabolite, 5-FdUMP. The triphosphatemetabolite is incorporated into DNA and the ribosetriphosphate into RNA. These incorporations into growingchains result in inhibition of synthesis and function of DNAand RNA. Resistance can occur as a result of increased expressionof TS, decreased levels of reduced folate substrate5,10-methylenetetrahydrofolate, or increased levels of dihydropyrimidinedehydrogenase. Dihydropyrimidine dehydrogenaseis the main enzyme responsible for 5-FU catabolism.
Bioavailability following oral absorption is erratic.Administration of 5-FU by IV yields high drug concentrationsin bone marrow and liver. The drug does distribute intothe central nervous system (CNS). Significant drug interactionsinclude enhanced toxicity and antitumor activity of5-FU following pretreatment with leucovorin. Toxicities includedose-limiting myelosuppression, mucositis, diarrhea,and hand–foot syndrome (numbness, pain, erythema, dryness,rash, swelling, increased pigmentation, nail changes,pruritus of the hands and feet).

Air & Water Reactions

Insoluble in water.

Reactivity Profile

5-Fluorouracil may be sensitive to prolonged exposure to light. Solutions discolor on storage. 5-Fluorouracil can react with oxidizing agents and strong bases. Incompatible with methotrexate sodium.

Hazard

Questionable carcinogen.

Health Hazard

Minimum toxic dose in humans is approximately 450 mg/kg (total dose) over 30 days for the ingested drug. Intravenous minimum toxic dose in humans is a total dose of 6 mg/kg over three days. Depression of white blood cells occurred after intravenous administrative of a total dose of 480 mg/kg over 32 days. Occasional neuropathy and cardiac toxicity have been reported. Do not use during pregnancy. Patients with impaired hepatic or renal function, with a history of high-dose pelvic irradiation or previous use of alkylating agents should be treated with extreme caution. Patients with nutritional deficiencies and protein depletion have a reduced tolerance to 5-Fluorouracil.

Fire Hazard

Emits very toxic fumes of flourides and nitrogen oxides when heated to decomposition. Avoid decomposing heat.

Biological Activity

Anticancer agent. Metabolized to form fluorodeoxyuridine monophosphate (FdUMP), fluorodeoxyuridine triphosphate (FdUTP) and fluorouridine (FUTP). FdUMP inhibits thymidylate reductase causing a reduction in dTMP synthesis. FUTP and FdUTP are misincorporated into RNA and DNA respectively.

Mechanism of action

5-Fluorouracil (FU) is converted intracellularly to several active metabolites: fluorodeoxyuridine monophosphate (FdUMP), fluorodeoxyuridine triphosphate (FdUTP), and fluorouridine triphosphate (FUTP). The active metabolites of 5-FU disrupt RNA synthesis (FUTP), inhibit the action of thymidylate synthase (TS)—a nucleotide synthetic enzyme (FdUMP)—and can also be directly misincorporated into DNA (FdUTP). The rate-limiting enzyme in 5-FU catabolism is dihydropyrimidine dehydrogenase (DPD), which converts 5-FU to dihydrofluorouracil (DHFU). Over 80% of administered 5-FU is normally catabolized primarily in the liver, where DPD is abundantly expressed.

5-Fluorouracil (5-FU) is converted to three major active metabolites: (1) fluorodeoxyuridine monophosphate (FdUMP), (2) fluorodeoxyuridine triphosphate (FdUTP), and (3) fluorouridine triphosphate (FUTP). The main mechanism of 5-FU activation is conversion to fluorouridine monophosphate (FUMP) either directly by orotate phosphoribosyl transferase (OPRT), or indirectly via fluorouridine (FUR) through the sequential action of uridine phosphorylase (UP) and uridine kinase (UK). FUMP is then phosporylated to fluorouridine diphosphate (FUDP), which can be either further phosphorylated to the active metabolite fluorouridine triphosphate (FUTP), or converted to fluorodeoxyuridine diphosphate (FdUDP) by ribonucleotide reductase (RR). In turn, FdUDP can either be phosphorylated or dephosphorylated to generate the active metabolites FdUTP and FdUMP respectively. An alternative activation pathway involves the thymidine phosphorylase catalyzed conversion of 5-FU to fluorodeoxyuridine (FUDR), which is then phosphorylated by thymidine kinase (TK) to the thymidylate synthase (TS) inhibitor, FdUMP. Dihydropyrimidine dehydrogenase (DPD)-mediated conversion of 5-FU to dihydrofluorouracil (DHFU) is the rate-limiting step of 5-FU catabolism in normal and tumor cells.

Mechanism of action

Another action proposed for 5-fluorouracil may involve the incorporation of the nucleotide 5-fluorouridine triphosphate (5-FUTP) into RNA. The cytotoxic role of these “fraudulent” 5-fluorouracil-containing RNAs is not well understood.
Several possible mechanisms of resistance to 5-fluorouracil have been identified, including increased synthesis of the target enzyme, altered affinity of thymidylate synthetase for FdUMP, depletion of enzymes (especially uridine kinase) that activate 5-fluorouracil to nucleotides, an increase in the pool of the normal metabolite deoxyuridylic acid (dUMP), and an increase in the rate of catabolism of 5-fluorouracil.
The drug has been administered orally, but absorption by this route is erratic. The plasma half-life of 5- fluorouracil after intravenous injection is 10 to 20 minutes. It readily enters CSF. Less than 20% of the parent compound is excreted into the urine, the rest being largely metabolized in the liver.

Pharmacology

Local inflammatory reactions characterized by erythema, edema, crusting, burning, and pain are common (and, some would argue, desirable) but may be minimized by reduced frequency of application or use in combination with a topical corticosteroid.

Clinical Use

5-Fluorouracil (Efudex, Fluoroplex) is an antimetabolite used for the topical treatment of actinic keratoses. It is also useful for the treatment of superficial basal cell carcinomas when conventional surgical modalities are impractical.

Clinical Use

5-Fluorouracil (FU) is widely used in the treatment of a range of cancers including breast and cancers of the aerodigestive tract, but has had the greatest impact in colorectal cancer. 5-FU-based chemotherapy improves overall and disease-free survival of patients with resected stage III colorectal cancer. Nonetheless, response rates for 5-FU-based chemotherapy as a first-line treatment for advanced colorectal cancer are only between 10 and 15%. Combination of 5-FU with newer chemotherapies, such as irinotecan and oxaliplatin, has improved the response rates for advanced colorectal cancer to between 40 and 50%.

Clinical Use

5-Fluorouracil is used in several combination regimens in the treatment of breast cancer. It also has palliative activity in gastrointestinal adenocarcinomas, including those originating in the stomach, pancreas, liver, colon, and rectum. Other tumors in which some antitumor effects have been reported include carcinomas of the ovary, cervix, oropharynx, bladder, and prostate. Topical 5-fluorouracil cream has been useful in the treatment of premalignant keratoses of the skin and superficial basal cell carcinomas, but it should not be used in invasive skin cancer.

Safety Profile

Poison by ingestion, intraperitoneal, subcutaneous, and intravenous routes. Moderately toxic by parented and rectal routes. Experimental teratogenic and reproductive effects. Human systemic effects: EKG changes, bone marrow changes, cardiac, pulmonary, and gastrointestinal effects. Human mutation data reported. A human skin irritant. Questionable carcinogen. When heated to decomposition it emits very toxic fumes of Fand NOx.

Potential Exposure

This material is used as an antineo plastic drug for cancer treatment and as a chemosterilant for insects.

Veterinary Drugs and Treatments

5-fluorouracil is a potent cytotoxic chemotherapeutic agent used for the topical therapy of equine limbal and eyelid squamous cell carcinoma. It is also used as an antimetabolite to limit fibrosis over the body of gonioimplant devices used to artificially shunt aqueous humor out of the eye in glaucoma as well as improve long-term filtering performance of the implant.
1% solution applied to the affected eye three times daily.

Shipping

UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Incompatibilities

Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explo sions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, methotrexrate sodium, sources of heat.

5-Fluorouracil Preparation Products And Raw materials

Raw materials

Preparation Products


5-Fluorouracil Suppliers

Global( 512)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
China Synchem Technology Co.,Ltd.
0552-4929304
0552-4928800 [email protected] CHINA 45 55
Yunbio Tech Co.,Ltd.
010-60605551
010-60605551 [email protected] CHINA 255 58
Anhui Royal Chemical Co., Ltd.
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[email protected] CHINA 488 55
Shenzhen Sendi Biotechnology Co.Ltd.
0755-23311925 18102838259
0755-23311925 [email protected] CHINA 3194 55
Henan Tianfu Chemical Co.,Ltd.
0371-55170693
0371-55170693 [email protected] CHINA 20672 55
Mainchem Co., Ltd.
+86-0592-6210733
+86-0592-6210733 [email protected] CHINA 32447 55
Hangzhou FandaChem Co.,Ltd.
0086 158 5814 5714 (Mobile; WhatsApp; Telegram)
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Shanghai Yingrui Biopharma Co., Ltd.
+86-21-33585366 E-mail:[email protected]
+86-21-34979012 [email protected] CHINA 661 60
career henan chemical co
+86-371-86658258
[email protected] CHINA 30004 58
Biochempartner
0086-13720134139
[email protected] CHINA 969 58

View Lastest Price from 5-Fluorouracil manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-08-26 5-Fluorouracil
51-21-8
US $0.00-0.00 / KG 1g 99% 200kg/month Beijing Yibai Biotechnology Co., Ltd
2018-08-15 5-Fluorouracil
51-21-8
US $2.00 / KG 1KG 98% 1ton career henan chemical co
2018-08-16 2,2'-Anhydro-1-beta-D-arabinofuranosylcytosine hydrochloride
10212-25-6
US $7.00 / KG 1KG 99% 1000KG career henan chemical co

5-Fluorouracil Spectrum


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