Acid Blue 1

Also known as: Patent Blue VF, Sulfan Blue, Food Blue 3, C.I. 42045, Disulfin blue VN 150 sodium salt, Patent Blue V, N-[4-[[4-(Diethylamino)phenyl](2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-ethanaminium inner salt sodium salt, Sodium 4-{[4-(diethylamino)phenyl][4-(diethyliminio)-2,5-cyclohexadien-1-ylidene]methyl}-1,3-benzenedisulfonate, E131, Ethanaminium, N-[4-[[4-(diethylamino)phenyl](2,4-disulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, inner salt, sodium salt (1:1), Natrium-4-{[4-(diethylamino)phenyl][4-(diethyliminio)cyclohexa-2,5-dien-1-yliden]methyl}benzol-1,3-disulfonat, 4-{[4-(diéthylamino)phényl][4-(diéthyliminio)cyclohexa-2,5-dién-1-ylidène]méthyl}benzène-1,3-disulfonate de sodium

Acid Blue 1 (CAS 129-17-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C27H31N2NaO6S2 and a molecular weight of 566.665 g/mol. Key property: a melting point of 290ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

129-17-9

Jingsj CID

J-40040-8

Molecular Formula

C₂₇H₃₁N₂NaO₆S₂

Molecular Weight

566.665 g/mol

Category

Organic Acids

Last updated

8/21/2026