Warfarin

杀鼠灵

Also known as: 3-(alpha-Acetonylbenzyl)-4-hydroxycoumarin, 4-hydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one, (RS)-3-(α-acetonylbenzyl)-4-hydroxycoumarin, (S)-(-)-Warfarin, (S)-Warfarin, (-)-Warfarin, rac-4-hydroxy-3-[(1R)-3-oxo-1-phenylbutyl]-2H-1-benzopyran-2-one, zoocoumarin, MFCD00006854, EINECS 201-377-6

Warfarin (CAS 81-81-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C19H16O4 and a molecular weight of 308.328 g/mol. It is also known as 3-(alpha-Acetonylbenzyl)-4-hydroxycoumarin, 4-hydroxy-3-(3-oxo-1-phenylbutyl)-2H-1-benzopyran-2-one and (RS)-3-(α-acetonylbenzyl)-4-hydroxycoumarin. Key properties include a melting point of 162-164 °C(lit.), a boiling point of 515.2±50.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 188.8±23.6 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81-81-2
Jingsj CID
J-1327835-9
Molecular Formula
C19H16O4
Chinese Name
杀鼠灵
Molecular Weight
308.328 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point162-164 °C(lit.)
Boiling Point515.2±50.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point188.8±23.6 °C

GHS Safety & Compliance

Acute Toxicity / Health HazardSignal word: Danger

Frequently Asked Questions

What is the CAS number of Warfarin?

The CAS number of Warfarin is 81-81-2.

What are the molecular formula and molecular weight of Warfarin?

Warfarin has molecular formula C19H16O4 and molecular weight 308.328 g/mol.

Is Warfarin hazardous?

Warfarin has GHS signal word Danger.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Warfarin (CAS 81-81-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1327835-9 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.