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5-Amino-2-methylbenzenesulfonic acid Structure

5-Amino-2-methylbenzenesulfonic acid

Chemical Properties

Melting point 200°C
Boiling point 500°C (rough estimate)
Density  1.3553 (rough estimate)
refractive index  1.6100 (estimate)
storage temp.  -20°C Freezer, Under inert atmosphere
solubility  Aqueous Acid (Slightly, Heated, Sonicated), Aqueous Base (Slightly, Sonicated)
pka -1.11±0.42(Predicted)
form  Solid
color  Off-White to Pale Yellow
Sensitive  Hygroscopic
Dissociation constant 0-0 at 23℃
CAS DataBase Reference 118-88-7(CAS DataBase Reference)
FDA UNII G90628U043
EPA Substance Registry System 5-Amino-o-toluenesulfonic acid (118-88-7)

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordWarning
Hazard statements H314-H318
Precautionary statements P260h-P301+P330+P331-P303+P361+P353-P305+P351+P338-P405-P501a
Risk Statements  20/21/22-34
Safety Statements  26-36/37/39
RIDADR  2585
TSCA  Yes
HazardClass  8
PackingGroup  III
NFPA 704:
0
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