C10H9NO3S
223.25 g/mol
Dye & PigmentWarning
2-AMINO-1-NAPHTHALENESULFONIC ACID
CAS81-16-3EC201-331-5
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
Diazo component for acid dyes and pigments
2-Amino-1-naphthalenesulfonic acid, commonly known as Tobias acid, is an organic compound featuring both an amino group and a sulfonic acid group on a naphthalene ring. It is one of several aminonaphthalenesulfonic acids and is primarily significant as a diazo component in the production of acid dyes and pigments.
Diazo component for acid dyesDiazo component for pigments
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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CAS 81-16-3
Related Compounds
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3,4,9,10-perylenetetracarboxylic diimide
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pigment for plastics
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Disperse dye for textiles
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D&C violet no. 2
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Dye for cosmetics and plastics
ReferenceSame Category
Quinizarin
CAS81-64-1
Solvent dye and chemical intermediate
Safety Reference
Warning
H319Causes serious eye irritation
Identifiers
IUPAC Name
2-aminonaphthalene-1-sulfonic acid
InChIKey
GWIAAIUASRVOIA-UHFFFAOYSA-N
SMILES
C1=CC=C2C(=C1)C=CC(=C2S(=O)(=O)O)N
Synonyms (15)
- Kyselina tobiasova
- Kyselina tobiasova [Czech]
- Naphthylaminsulfosaure
- Tobias acid
- aminonaphthalenesulfonic acid