C10H9NO7S2
319.3 g/mol
Dye & PigmentWarning
1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-
CAS130-23-4EC204-982-3
Category
Dye & Pigment
Compound Class
Organic Acid
Primary Use
intermediate for dye production
This compound is a chemical compound used primarily as an intermediate in the synthesis of dyes.
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
ReferenceSame Category
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Fluorescent brightener
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1,4-Bis(4-cyanostyryl)benzene
CAS13001-40-6
fluorescent brightener
ReferenceSame Category
Cobalt(II) oxide
CAS1307-96-6
Ceramics pigment and enamel colorant
ReferenceSame Category
Dichromium trioxide
CAS1308-38-9
Pigment for paints and polymers
Safety Reference
Warning
H302Harmful if swallowed
Customs Tariff Classification
The international HS code for 1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- (CAS 130-23-4) is 2922.21.
HS code (international, 6-digit)
2922.21
EU CN code (8-digit)
2922 21 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
4-amino-5-hydroxynaphthalene-1,7-disulfonic acid
InChIKey
ZUQOBHTUMCEQBG-UHFFFAOYSA-N
SMILES
C1=CC(=C2C=C(C=C(C2=C1N)O)S(=O)(=O)O)S(=O)(=O)O
Synonyms (8)
- K acid
- K-Saure
Sourcing 1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-?
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