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Home/Compounds/Dye & Pigment/Acid red 97
C32H20N4Na2O8S2
698.6 g/mol
Dye & PigmentDanger

Acid Red 97

CAS10169-02-5EC233-439-3
Category
Dye & Pigment
Compound Class
Aromatic
Primary Use
acid dye for textiles

Acid Red 97 is a synthetic azo dye used primarily as an acid dye for textile fibers, especially wool and nylon. It is characterized by its complex aromatic structure with two azo linkages and sulfonate groups, which give it affinity for protein fibers.

dyeing wool and nylon textilescoloring silkpaper dyeing

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

ApplicationSame Use

Acid Blue 161

CAS12392-64-2

acid dye for textiles

ApplicationSame Use

Acid Blue 277

CAS25797-81-3

acid dye for textiles

ApplicationSame Use

Acid blue 113

CAS3351-05-1

acid dye for textiles

ApplicationSame Use

Acid blue 158

CAS6370-08-7

acid dye for textiles

ReferenceSame Category

Acetoacetanilide

CAS102-01-2

Intermediate for dyes and pigments

ReferenceSame Category

N-ethyl-m-toluidine

CAS102-27-2

Dye and photographic chemical intermediate

ReferenceSame Category

4-[[4-(Diethylamino)-2-methylphenyl]imino]-1,4-dihydro-N-methyl-1-oxo-2-naphthalenecarboxamide

CAS102187-53-1

dye intermediate

ReferenceSame Category

Ethylaniline

CAS103-69-5

Dye manufacturing intermediate and explosive stabilizer

Safety Reference

Harmful
Harmful
Health Hazard
Health Hazard
Environmental Hazard
Environmental Hazard
Danger
H319Causes serious eye irritation
H350May cause cancer
H411Toxic to aquatic life with long lasting effects

Customs Tariff Classification

The international HS code for Acid Red 97 (CAS 10169-02-5) is 3204.12.

HS code (international, 6-digit)

3204.12

EU CN code (8-digit)

3204 12 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

disodium;5-[(2-hydroxynaphthalen-1-yl)diazenyl]-2-[4-[(2-hydroxynaphthalen-1-yl)diazenyl]-2-sulfonatophenyl]benzenesulfonate

InChIKey

JCEBMROGCIEFRX-UHFFFAOYSA-L

SMILES

C1=CC=C2C(=C1)C=CC(=C2N=NC3=CC(=C(C=C3)C4=C(C=C(C=C4)N=NC5=C(C=CC6=CC=CC=C65)O)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+]

Synonyms (45)
  • ACID RED NS
  • ACIDRED97(C.I.22890)
  • Acid Anthracene Red GA-CF
  • Acid Red 97
  • Acid Red 97, Dye content
  • Airedale Scarlet GM
  • Alizarine Chrome Red G
  • Altochrome Scarlet G
  • Amacid Milling Scarlet G
  • Anthra Red G
  • Azo Milling Red G
  • Belacid Milling Red G
  • Benzyl Red GS
  • Benzyl Red MG
  • C.I. Acid Red 97
  • COLOCID RED BG
  • Calcocid Milling Red G
  • Coomassie Milling Scarlet G
  • Coomassie Milling Scarlet GP
  • Coriacid Scarlet R
  • Crispin Red GM
  • Cyanine Fast Scarlet G
  • Fenazo Red
  • Hexaderm Red MRG
  • Korostan Red G
  • Milling Red A
  • Milling Scarlet 2G
  • Milling Scarlet DH
  • Milling Scarlet R
  • Naphthalene Leather Scarlet G
  • Optanol Scarlet GS
  • Pharmaglo Red G
  • Shikiso Acid Anthracene Red G
  • Suminol Brilliant Scarlet DH
  • Sumitomo Fast Scarlet G
  • Supranol Scarlet GS
  • Tertracid Milling Red AGE
  • Vondamol Brilliant Red G
  • Xylene Milling Red G

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