Pigment Red 3

颜料红3

Also known as: Toluidine Red, 1-((2-nitro-4-methylphenyl)azo)-2-naphthol, 1-((4-Methyl-2-nitrophenyl)diazenyl)naphthalen-2-ol, 1-(4-Methyl-2-nitro-phenylazo)-[2]naphthol, C.I. Pigment Red 3, C.I.Pigmentred3, C.I.Pigmentred3(12120), PR 3, AKA221, Basoflex Red 361, HELIO FAST RED RL, MFCD00003910, adctoluidineredb, atlasolspiritred3, fastredab, fastredj, fastredje, fastredr, hansaredb, hansaredg

Pigment Red 3 (CAS 2425-85-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C17H13N3O3 and a molecular weight of 307.30300 g/mol. It is also known as Toluidine Red, 1-((2-nitro-4-methylphenyl)azo)-2-naphthol and 1-((4-Methyl-2-nitrophenyl)diazenyl)naphthalen-2-ol. Key properties include a melting point of 270-272 °C(lit.), a boiling point of 543.5ºC at 760 mmHg and a density of 1.32 g/cm3. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2425-85-6

Jingsj CID

J-29800-9

Molecular Formula

C₁₇H₁₃N₃O₃

Chinese Name

颜料红3

Molecular Weight

307.30300 g/mol

Category

Organic Compounds

Last updated

8/21/2026