C18H14N3NaO3S
375.4 g/mol
Dye & PigmentDanger
Metanil yellow
CAS587-98-4EC209-608-2
Category
Dye & Pigment
Compound Class
Amine
Primary Use
azo dye and pH indicator
Metanil Yellow is an azo dye commonly used as a pH indicator, changing from red to yellow in the pH range of 1. 2 to 3.
pH indicator in analytical chemistryazo dye for industrial coloring
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
2-(3-methyl-5-oxo-2-pyrazolinyl)benzenesulfonic acid
CAS58862-38-7
pyrazolone dye intermediate
ReferenceSame Category
3-aminophenol
CAS591-27-5
hair dye coupler intermediate
ReferenceSame Category
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 6'-[ethyl(4-methylphenyl)amino]-3'-methyl-2'-(phenylamino)-
CAS59129-79-2
Dye
ReferenceSame Category
4',5'- dibromofluorescein
CAS596-03-2
colorant in personal care products
Referencesame scaffold
Acid Yellow 199
CAS70865-20-2
acid dye for textiles
Safety Reference
Danger
H302Harmful if swallowed
H312Harmful in contact with skin
H317May cause an allergic skin reaction
H318Causes serious eye damage
H319Causes serious eye irritation
H332Harmful if inhaled
H411Toxic to aquatic life with long lasting effects
H412Harmful to aquatic life with long lasting effects
Customs Tariff Classification
The international HS code for Metanil yellow (CAS 587-98-4) 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
sodium 3-[(4-anilinophenyl)diazenyl]benzenesulfonate
InChIKey
NYGZLYXAPMMJTE-UHFFFAOYSA-M
SMILES
C1=CC=C(C=C1)NC2=CC=C(C=C2)N=NC3=CC(=CC=C3)S(=O)(=O)[O-].[Na+]
Synonyms (83)
- 11363 Yellow
- ACID YELLOW 36
- Acid Golden G
- Acid Golden Yellow G
- Acid Leather Yellow PRW
- Acid Leather Yellow R
- Acid Metanil Yellow
- Acidic Metanil Yellow
- Aizen Metanil Yellow
- Amacid Yellow M
- Basacid Yellow 230
- Basacid Yellow 232
- Brasilan Metanil Yellow
- Bucacid Metanil Yellow
- C.I. Acid Yellow 36
- Calcocid Yellow MXXX
- Diacid Metanil Yellow
- Eniacid Metanil Yellow GN
- Ext D and C Yellow No. 1
- Ext D&C Yellow 1
- Fenazo Yellow M
- Hidacid Metanil Yellow
- Hispacid Yellow MG
- Japan Yellow 406
- Java Metanil Yellow G
- Kiton Orange MNO
- Kiton Yellow MS
- Metanil Yellow 1955
- Metanil Yellow C
- Metanil Yellow E
- Metanil Yellow Extra
- Metanil Yellow F
- Metanil Yellow G
- Metanil Yellow Griesbach
- Metanil Yellow K
- Metanil Yellow KRSU
- Metanil Yellow M
- Metanil Yellow M 3X
- Metanil Yellow O
- Metanil Yellow PL
- Metanil Yellow S
- Metanil Yellow Supra P
- Metanil Yellow VS
- Metanil Yellow WS
- Metanil Yellow Y
- Metanil Yellow YK
- Metanil Yellow, Dye content
- Metanil yellow
- Metanile Yellow O
- Metanilgelb
- Mitsui Metanil Yellow
- Monoazo
- Remaderm Yellow HPR
- Shikiso Metanil Yellow
- Symulon Metanil Yellow
- Takaoka Metanil Yellow
- Tertracid Yellow M
- Tropaeolin G
- Vondacid Metanil Yellow G
- Yodochrome Metanil Yellow
- Zlut kysela 36
- Zlut kysela 36 [Czech]
- Zlut metanilova
- Zlut metanilova [Czech]
Sourcing Metanil yellow?
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