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251917 Sigma-Aldrich

Sulfanilic acid

ACS reagent, 99%

Synonym: 4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid

  • CAS Number 121-57-3

  • Linear Formula 4-(H2N)C6H4SO3H

  • Molecular Weight 173.19

  •  Beilstein/REAXYS Number 908765

  •  EC Number 204-482-5

  •  MDL number MFCD00007886

  •  PubChem Substance ID 24855168

  •  NACRES NA.21

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Properties

Related Categories Acids, Acids & Bases, Building Blocks, Chemical Synthesis, Organic Acids,
Quality Level   200
grade   ACS reagent
assay   98.0-102.0% (ACS specification)
  99%
form   powder
ign. residue   ≤0.01%
mp   >300 °C (lit.)
anion traces   chloride (Cl-): ≤0.002%
  nitrite (NO2-): ≤0.5 ppm
  sulfate (SO42-): ≤0.01%
SMILES string   Nc1ccc(cc1)S(O)(=O)=O
InChI   1S/C6H7NO3S/c7-5-1-3-6(4-2-5)11(8,9)10/h1-4H,7H2,(H,8,9,10)
InChI key   HVBSAKJJOYLTQU-UHFFFAOYSA-N

Description

Application

The diazonium salt of sulfanilic acid may be used in the preparation of azo dyes such as o-anisaldehyde, orange I and orange II. It may also be used in the preparation of 2,6-dibromoaniline via bromination followed by desulfonation.

Packaging

25, 100, 500 g in poly bottle

Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
WGK 1
RTECS 
WP3895500
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Protocols & Articles

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