send us an inquiry
LC5612 Sulfanilic acid
for synthesis


Order number Packaging Quantity Price €
AC32612 Plastic bottle 100 g 10.89
AC32612 Plastic bottle 1 kg 31.50


Product information
Synonyms 4-Aminobenzenesulfonic acid, Aniline-4-sulfonic acid
Hill Formula C6H7NO3S
Chemical formula NH2C6H4SO3H
HS Code 2921 42 00
EC number 204-482-5
Molar mass 173.18 g/mol
EC index number 612-014-00-X
CAS number 121-57-3


Chemical and physical data
Ignition temperature >400 °C
Solubility 10 g/l (20 °C)
Melting point 288 °C decomposes
Molar mass 173.18 g/mol
Density 1.485 g/cm3 (25 °C)
Bulk density 620 kg/m3
pH value 2.5 (10 g/l, H2O, 20 °C)


Safety information according to GHS
Hazard Statement(s) H319: Causes serious eye irritation.
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
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.
Signal Word Warning
Hazard Pictogram(s)
Storage class 10 – 13 Other liquids and solids
WGK WGK 1 slightly water endangering
Disposal 3
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.


Safety information
R Phrase R 36/38-43
Irritating to eyes and skin.May cause sensitization by skin contact.
S Phrase S 24-37
Avoid contact with skin.Wear suitable gloves.
Categories of danger irritant, sensitizing
Hazard Symbol Irritant


Toxicological data
LD 50 oral LD50 rat 12300 mg/kg


Assay (acidimetric, calc. on anhydrous substance) ≥ 99 %
Water (K. F.) ≤ 2 %
Identity (IR) passes test