8.22338 EMD Millipore

Sulfanilic acid

Sulfanilic acid for synthesis. CAS 121-57-3, EC Number 204-482-5, chemical formula NH₂C₆H₄SO₃H., for synthesis

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

  • CAS Number 121-57-3

  • Linear Formula C₆H₇NO₃S

  • Molecular Weight 173.18 g/mol

  •  EC Number 204-482-5



Related Categories Acids, Acids & Bases, Building Blocks, Chemical Synthesis, Organic Building Blocks,
packaging   1 kg in Plastic bottle (8223381000)
  100 g in Plastic bottle (8223380100)
  50 kg in Fibre carton (8223389050)
solubility   10 g/l
density   1.485 g/cm3 (25 °C)
autoignition temp.   >400 °C
mp   288 °C decomposes
pH   2.5 (10 g/l, H₂O, 20 °C)
bulk density   620 kg/m3
LD 50 oral   LD50 Rat 12300 mg/kg
shipped in   ambient
storage temp.   Store below +30°C.
specifications   Assay (acidimetric, calc. on anhydrous substance): ≥ 99.0 %
  Loss on drying (110 °C 2h): ≤ 2.0 %
  Identity (IR): passes test

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Safety Information

HS Code 
2921 42 00
Hazard Statement(s) 
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H319: Causes serious eye irritation.
Precautionary Statement(s) 
P280: Wear protective gloves.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Storage class 
10 - 13 Other liquids and solids
WGK 1 slightly water endangering
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.
Hazard Pictogram(s) 
GHS07  GHS07
Hazard Symbols 
Irritant  Irritant
Categories of danger 
irritant, sensitizing
R Phrase 
R 36/38-43
Irritating to eyes and skin.May cause sensitisation by skin contact.
S Phrase 
S 24-37
Avoid contact with skin.Wear suitable gloves.
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