Agent Name

FD&C Blue 1

CAS Number

3844-45-9

Formula

C37-H36-N2-O9-S3.2Na

Major Category

Dyes

Synonyms

1206 Blue; Acid Sky Blue A; Aizen Food Blue No. 2; Blue 1206; Brilliant Blue FCF Supra; C.I. Acid Blue 9, disodium salt; C.I. Food Blue 2; Canacert Brilliant Blue FCF; Cosmetic Blue Lake; Dolkwal Brilliant Blue; FD & C Blue No. 1; FD and C Blue No. 1; FDC Blue No. 1; Fenazo Blue XI; Food Blue 2; Food Blue Dye No. 1; Food Blue No. 1; Hexacol Brilliant Blue A; Intracid Pure Blue L; Japan Blue 1; Japan Blue No. 1; Merantine Blue EG; Modr Brilantni FCF [Czech]; Modr Kysela 9 [Czech]; Modr Potravinarska 2 [Czech]; Usacert Blue No. 1; Usacert FD and C Blue No. 1; Ammonium, ethyl(4-(p-(ethyl(m-sulfobenzyl)amino)-alpha-(o-sulfophenyl)benzylidene)-2,5-cyclohexadien-1-ylidene)(m-sulfobenzyl)-, hydroxide, inner salt, disodium salt; Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, hydroxide, inner; salt, disodium salt; Benzenemethanaminium, N-ethyl-N-(4-((4-(ethyl((3-sulfophenyl)methyl)amino)phenyl)(2-sulfophenyl)methylene)-2,5-cyclohexadien-1-ylidene)-3-sulfo-, inner salt, disodium; salt; C.I. Acid Blue 9, disodium salt; Dihydrogen (ethyl)(4-(4-(ethyl(3-sulphonatobenzyl)amino)-2'-sulphonatobenzhydrylidene)cyclohexa-2,5-dien-1-ylidene)(3-sulphonatobenzyl)ammonium, disodium salt; [ChemIDplus]

Category

Di- and Triaryl Dyes

Description

Water soluble powder that appears metallic and dark-purple to bronze; [Sax]

Sources/Uses

Used to dye lavatory fresheners and flushing water; [Ullmann]

Comments

Carcinogenic in rats after repeated subcutaneous injections: fibrosarcomas; No human data; [IARC]

Adverse Effects
IARC Carcinogen

Not Classifiable

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