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Sulphonation ProductsCAS 121-47-1

Metanilic Acid

Metanilic Acid

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Molecular Formula

C₆H₇NO₃S

Molecular Weight

173.19 g/mol

Appearance

White crystalline powder

CAS Number

121-47-1

Synonyms:3-Amino Benzene Sulphonic Acidm-Aminobenzenesulphonic acid3-Aminobenzenesulphonic acid

Specifications

ParameterSpecification
AppearanceWhite crystalline powder
PurityMin. 99.0%
Sulphated AshMax. 0.1%
MoistureMax. 0.5%
Molecular FormulaC₆H₇NO₃S
Molecular Weight173.19 g/mol

Quality & Testing Methods

Diazotisation Titration

Sample dissolved in HCl, titrated with 0.1N NaNO₂, endpoint by starch-iodide paper

Gravimetric Analysis

Sulphated ash — sample ignited and residue weighed

Karl Fischer Titration

Moisture determination per ASTM E203

Applications

Dye intermediate synthesis
Optical brightener intermediates
Sulfa drug chain intermediates
Specialty chemical synthesis

Packaging

  • 25 kg HDPE bags
  • 50 kg HDPE bags

Labelling: GHS/REACH compliant labelling. Export packaging available.

Incoterms: FOB Dahej/Nhava Sheva, CIF, CFR available.

Shipping

  • Export to EU, USA, South-East Asia, Middle East, Africa
  • GHS-compliant Safety Data Sheets (SDS) provided
  • UN dangerous goods classification as applicable
  • COA (Certificate of Analysis) with every shipment

Safety Information

Signal Word

Warning

Hazard Classification

Irritant

GHS Pictograms

GHS07 – Exclamation Mark

Storage Conditions

Store in cool, dry area away from moisture.

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