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86090 Sigma-Aldrich

Sulfanilic acid

puriss. p.a., ≥99.0% (T)

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

  • CAS Number 121-57-3

  • Linear Formula 4-(H2N)C6H4SO3H

  • Molecular Weight 173.19

  •  Beilstein Registry Number 908765

  •  EC Number 204-482-5

  •  MDL number MFCD00007886

  •  PubChem Substance ID 57653079

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Properties

Related Categories Acids, Acids & Bases, Amines, Analytical Reagents, Analytical Reagents for General Use,
InChI Key   HVBSAKJJOYLTQU-UHFFFAOYSA-N
grade   puriss. p.a.
assay   ≥99.0% (T)
form   powder or crystals
impurities   ≤1% ortho/meta-aminobenzene sulfonic acid (HPLC)
ign. residue   ≤0.01% (as SO4)
mp   >300 °C(lit.)
anion traces   chloride (Cl-): ≤20 mg/kg
  nitrite (NO2-): ≤0.5 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Na: ≤50 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg

Description

Application

Sulfanilic acid may be used for the functionalization of single-walled carbon nanotubes (SWNTs) with aryl sulfonate groups.

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Safety & Documentation

Safety Information

Symbol 
GHS07  GHS07
Signal word 
Warning
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1
RTECS 
WP3895500
Protocols & Articles

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Peer-Reviewed Papers
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