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Home/Compounds/Dye & Pigment/Aluminum 3-hydroxy-4-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-2,7-disulfonic acid
C20H14AlN2O10S33
565.5 g/mol
Dye & Pigment

Aluminum 3-hydroxy-4-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-2,7-disulfonic acid

CAS12227-62-2
Category
Dye & Pigment
Compound Class
Inorganic Salt
Primary Use
Pigment Red 193

Pigment Red 193 is an aluminum salt of a sulfonated azo dye, used as a red pigment in various coloring applications.

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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Related Compounds

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Pigment for plastics

ReferenceSame Category

Reactive blue 21

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reactive dye for textile coloring

Referencestereoisomer of

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synthetic food colorant

Referencesame scaffold

Acid red 88

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Acid dye for textile coloring

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Ponceau 4R

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Synthetic food colorant

Referencesame scaffold

Acid Black 52

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Dye for nylon and wool

Customs Tariff Classification

The international HS code for Aluminum 3-hydroxy-4-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-2,7-disulfonic acid (CAS 12227-62-2) is 3204.17.

HS code (international, 6-digit)

3204.17

EU CN code (8-digit)

3204 17 00

Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.

Identifiers
IUPAC Name

aluminum 3-hydroxy-4-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-2,7-disulfonic acid

InChIKey

VGVCYVQGAQCIRY-UHFFFAOYSA-N

SMILES

C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)O)N=NC3=C4C=CC(=CC4=CC(=C3O)S(=O)(=O)O)S(=O)(=O)O.[Al+3]

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