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Home/Compounds/Dye & Pigment/Patent blue v sodium
C27H31N2NaO7S2
582.7 g/mol
Dye & Pigment

Patent Blue V sodium

CAS20262-76-4EC243-654-4
Category
Dye & Pigment
Compound Class
Amine
Primary Use
food dye and histological stain

Patent Blue V sodium is a synthetic dye belonging to the triarylmethane class, commonly used as a food coloring additive and in histology as a stain for biological tissues. Its chemical structure features a central carbon bonded to two diethylaminophenyl groups and a sulfonated hydroxybenzene ring, which confer its vivid blue color and water solubility.

food dyehistological stain

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Identifiers
IUPAC Name

sodium 4-[[4-(diethylamino)phenyl]-(4-diethylazaniumylidenecyclohexa-2,5-dien-1-ylidene)methyl]-6-hydroxybenzene-1,3-disulfonate

InChIKey

PMLFOMWMYRKZRF-UHFFFAOYSA-M

SMILES

CCN(CC)C1=CC=C(C=C1)C(=C2C=CC(=[N+](CC)CC)C=C2)C3=CC(=C(C=C3S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+]

Synonyms (15)
  • Acid blue 3 sodium salt
  • C.I. Acid blue 3 sodium salt
  • Food Blue 5 sodium salt
  • PATENT BLUE SODIUM
  • Patent Blue V sodium
  • Patent blue V sodium salt