Pigment Orange 1

C.I.颜料橙1

Also known as: CI 11725, C.I. 11725, C.I. Pigment Orange 1, 2-[(4-methoxy-2-nitrophenyl)azo]-3-oxo-N-(o-tolyl)butyramide, 2-[(4-methoxy-2-nitrophenyl)diazenyl]-N-(2-methylphenyl)-3-oxobutanamide, N-(2-Methylphenyl)-2-(2-nitro-4-methoxyphenylazo)-3-oxobutanamide, Hansa Yellow 3R, Hansa Yellow 3RA, Monolite Fast Orange 3G, Mono Fast Orange, Fastona Orange 3R, Fenalac Yellow 3R, Pigment Yellow 3R, Lutetia Fast Yellow 7R, Fanchon Orange WD-225, Fanchon Orange YH-5, DAIDAI401, Ext.D and C Orange No.1, PIGMENTORANGE1

Pigment Orange 1 (CAS 6371-96-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C18H18N4O5 and a molecular weight of 370.35900 g/mol. It is also known as CI 11725, C.I. 11725 and C.I. Pigment Orange 1. Key properties include a boiling point of 561ºC at 760 mmHg, a density of 1.3g/cm3 and a flash point of 293.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

6371-96-6

Jingsj CID

J-1116432-8

Molecular Formula

C₁₈H₁₈N₄O₅

Chinese Name

C.I.颜料橙1

Molecular Weight

370.35900 g/mol

Category

Organic Compounds

Last updated

8/21/2026