C.I. Direct Blue 15

直接蓝15

Also known as: Direct Blue 15, Direct Sky Blue, Direct Sky Blue 5B, Pontacyl Sky Blue 4BX, Diaminreinblau, Tetrasodium 3,3'-[(3,3'-dimethoxy-4,4'-biphenyldiyl)di(Z)-2,1-diazenediyl]bis(5-amino-4-hydroxy-2,7-naphthalenedisulfonate), Tetrasodium 3,3'-[(3,3'-dimethoxybiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonate), 5,5'-Diamino-4,4'-dihydroxy-3,3'-(3,3'-dimethoxy-biphenyl-4,4'-diylbisazo)-bis-naphthalin-2,7-disulfonsaeure,Natriumsalz, kayafectbluey, kayakudirectskyblue5b, mitsuidirectskyblue5b, nippondirectskyblue, nipponskyblue, paperblues, skyblue4b, skyblue5b, airedaleblued, directbluehh, modrprima15, naphtamineblue10g

C.I. Direct Blue 15 (CAS 2429-74-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C34H24N6Na4O16S4 and a molecular weight of 992.804 g/mol. It is also known as Direct Blue 15, Direct Sky Blue and Direct Sky Blue 5B. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2429-74-5

Jingsj CID

J-1109146-2

Molecular Formula

C₃₄H₂₄N₆Na₄O₁₆S₄

Chinese Name

直接蓝15

Molecular Weight

992.804 g/mol

Category

Organic Compounds

Last updated

8/21/2026