1-(5-chloro-4-nitro-2-thienyl)ethan-1-one

1-(5-氯-4-硝基噻吩-2-基)乙酮

Also known as: 1-(5-chloro-4-nitrothiophen-2-yl)ethanone, 2-acetyl-5-chloro-4-nitrothiophene, 2-chloro-3-nitro-5-acetylthiophene, 5-acetyl-2-chloro-3-nitrothiophene, Ethanone, 1-(5-chloro-4-nitro-2-thienyl)-, 1-(5-chloro-4-nitro-2-thienyl)ethan-1-one

1-(5-chloro-4-nitro-2-thienyl)ethan-1-one (CAS 42456-75-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4ClNO3S and a molecular weight of 205.61900 g/mol. It is also known as 1-(5-chloro-4-nitrothiophen-2-yl)ethanone, 2-acetyl-5-chloro-4-nitrothiophene and 2-chloro-3-nitro-5-acetylthiophene. Key properties include a boiling point of 320.3ºC at 760 mmHg, a density of 1.531g/cm3 and a flash point of 147.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

42456-75-7

Jingsj CID

J-40215-2

Molecular Formula

C₆H₄ClNO₃S

Chinese Name

1-(5-氯-4-硝基噻吩-2-基)乙酮

Molecular Weight

205.61900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026