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81-81-2

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Chinese Warfarin supplier/suppliers manufacturer factory
Cas No: 81-81-2
No Data No Data 1000 Metric Ton/Month Crovell Biotech (Hebei) Co., Ltd. Contact Supplier
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No Data 25 Kilogram 100 Metric Ton/Month HANGZHOU CLAP TECHNOLOGY CO,.LTD Contact Supplier
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USD $ 500.0-500.0 / Gram 1 Gram 1000 Gram/Day Pure Chemistry Scientific Inc. Contact Supplier

81-81-2 Usage

Trade name

ARAB RAT DETH®; ATROMBINE-K®; BRUMIN®; COMPOUND 42®; D-CON®; CO- RAX®; DETHMORE®; EAGLES-7®; EASTERN STATES DUOCIDE®; GROVEX SEWER BAIT®; HOPKINS BAR BAIR®; HOPKINS COV-R-TOX®; HOPKINS RODEX®; KILLGERM SEWARIN P®; KILMOL®; LIQUA-TOX®; MAR-FIN®; MOUSE PAK®; PLUSBAIT®; RAT-A-WAY®; RAT-B-GON®; RAT-O-CIDE®; RAT-GARD®; RAT & MICE BAIT®; RATRON®; RATS-NO-MORE®; RATTUNAL®; RAX®; RCR SQUIRREL KILLER®; RENTOKIL®; RENTOKIL BIOTROL®; RODEX BLOX®; RODENTEX®; RO- DETH®; RODEX®; ROUGH & READY MOUSE MIX®; SAKARAT®; SOLFARIN®; SOREXA PLUS®; SOREX CR1®; SEWARIN®; SPRAY-TROL BRANCH®; TWIN LIGHT RAT AWAY®; RODEN-TROL®; WARFARAT®; WARF COMPOUND®; VAMPIRINIP® Sodium Salt: ATHROMBIN®; LIQUA-TOX®; PANWARFIN®; RATSUL SOLUBLE®; TINTORANE®; VARFINE®; WARAN®; WARCOUMIN®; WARFILONE®

References

[1] Simon Sanderson, Jon Emery, Julian Higgins (2005) CYP2C9 gene variants, drug dose, and bleeding risk in warfarin-treated patients: A HuGEnetTM systematic review and meta-analysis, 7, 97-104
[2] http://npic.orst.edu/factsheets/rodenticides.html
[3] http://emedicine.medscape.com/article/1733331-overview

Chemical Properties

Colorless crystals; odorless; tasteless. Soluble in acetone, dioxane; slightly soluble in methanol, ethanol; very soluble in alkaline aqueous solution; insoluble in water and benzene.

Brand name

Athrombin- K (Purdue Frederick).

Application in Ischemic Stroke

Warfarin is the antithrombotic agent of first choice for secondary prevention in patients with atrial fibrillation and a presumed cardiac source of embolism.

Application in Ischemic Stroke

Warfarin is the antithrombotic agent of first choice for secondary prevention in patients with atrial fibrillation and a presumed cardiac source of embolism.

Fire Hazard

Contact with strong oxidizers may cause fires and explosions. Toxic gases and vapors (e.g., carbon monoxide) may be released in heating to decomposition. Avoid strong oxidizers.

Application in Ischemic Stroke

Warfarin is the antithrombotic agent of first choice for secondary prevention in patients with atrial fibrillation and a presumed cardiac source of embolism.

Purification Methods

dl-Warfarin crystallises from EtOH or MeOH. UV: max at 308nm ( 13,610) in H2O. The acetate has m 117-118o, the O-triflate has m 90-91o, and the 2,4-dinitrophenylhydrazone has m 215-216o. It is an effective anticoagulant and rodenticide. [West et al. J Am Chem Soc 83 2676 1961, HPLC: Banfield & Rowland J Pharm Sci 72 921 1983, Beilstein 17 III/IV 6794.] dl-Warfarin is resolved via recrystallisation of the quinidine salt, and the free acids are recrystallised (70g) from 600mL of 80% aqueous Me2CO. Large prismatic crystals of the pure enantiomers are obtained by slow crystallisation from Me2CO or AcOH. The solubilities of the pure enantiomers at 25o are 11.2% in Me2CO and 2.6% in AcOH, whereas the racemate has solubilities of 6.5% in Me2CO and 2% in AcOH. The IR spectra are the same with max (CHCl3) at 2.78 (w), 5.88, 6.16 and 6.38. [West et al. J Am Chem Soc 83 2676 1961, Cbz-proline diastereoisomeric esters were used for HPLC analysis: Banfield & Rowland J Pharm Sci 72 921 1983.] Poisonous, anticoagulant and rodenticide.

Reactivity Profile

Warfarin is incompatible with the following: Strong oxidizers .

Application

Warfarin is an anti-coagulant used to prevent heart attacks, strokes, and the formation of blood clots. It interferes with the use of vitamin K in the required carboxylation of several vitamin K-dependent proteins in the clotting cascade, preventing the initiating of clotting. (±)-Warfarin is a racemic mixture of 2 optically active isomers. (±)-Warfarin has a half-life of 36-42 hours in circulation, bound to plasma proteins, and accumulates in the liver, where the two isomers are metabolized by different pathways. 

Application in Ischemic Stroke

Warfarin is the antithrombotic agent of first choice for secondary prevention in patients with atrial fibrillation and a presumed cardiac source of embolism.

Health Hazard

Warfarin is classified as very toxic. Probable oral lethal dose in humans is 50-500 mg/kg, between 1 teaspoon and 1 ounce for a 150 lb. person. Material is an anticoagulant. Toxic effects other than hemorrhage are rarely seen in humans. Material is believed to be teratogenic in humans. Persons with a history of blood disorders with bleeding tendencies would be expected to be at increased risk from exposure.

Agricultural Uses

Rodenticide: Warfarin and its sodium salt is an anticoagulant rodenticide used for controlling rats and house mice in and around homes, animal and agricultural premises, and commercialand industrial sites. It is effective in very low dosages. About a week is required before a marked reduction in the rodent population is noticeable. Rodents do not become bait-shy after once tasting warfarin; they continue to consume it until its anti-clotting properties have produced death through internal hemorrhaging. It can be used year-after-year wherever a rodent problem exists. Warfarin and its sodium salt are only slightly dangerous to humans and domestic animals when used as directed, but care must be taken with young pigs, which are especially susceptible. The sodium salt is also used to treat people with blood hypercoagulation problems. Registered for use in EU countries . Registered for use in the U.S.

Description

Warfarin is tasteless and colorless. It is a widely used as anticoagulant (which stops the blood clotting) in the treatment and prevention of thrombosis, in the treatment for chronic atrial fibrillation, mechanical valves, pulmonary embolism, and dilated cardiomyopathy. Warfarin is metabolized primarily via oxidation in the liver by CYP2C9, and exerts its anticoagulant effect by inhibiting the protein vitamin K epoxide reductase complex, subunit 1 (VKORC1). Warfarin therapy can be associated with significant bleeding complications. Achieving a safe therapeutic response can be difficult because of warfarin’s narrow therapeutic index and great individual variability in the dose required, which is mostly a consequence of individual genetic variants: it is influenced by ageing, co-prescribed drugs, diet, alcohol consumption, and comorbid conditions. To maintain a therapeutic level of anti-thrombosis and to minimize the risk of bleeding complications, warfarin therapy requires intensive monitoring via the INR to guide its dosing. It is also used as the first generation of anticoagulant rodenticides.

Uses

Anticoagulant.
InChI:InChI=1/C19H16O4/c1-12(20)11-15(13-7-3-2-4-8-13)17-18(21)14-9-5-6-10-16(14)23-19(17)22/h2-10,15,21H,11H2,1H3

81-81-2 Well-known Company Product Price

Brand (Code)Product description CAS number Packaging Price Detail
Cerilliant (W-003)  Warfarin solution  1.0 mg/mL in acetonitrile, ampule of 1 mL, certified reference material 81-81-2 W-003-1ML 366.21CNY Detail

81-81-2SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name warfarin

1.2 Other means of identification

Product number -
Other names Warfarin

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:81-81-2 SDS

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