2-Aminotoluene-5-sulfonic acid Structure

2-Aminotoluene-5-sulfonic acid

Chemical Properties

Melting point 290°C
Density  1.3553 (rough estimate)
refractive index  1.6100 (estimate)
storage temp.  Storage temp. 2-8°C
pka pK1: 3.125 (25°C)
form  powder
color  Faint beige to faint red/orange
Water Solubility  5g/L(20 ºC)
InChI InChI=1S/C7H9NO3S/c1-5-4-6(12(9,10)11)2-3-7(5)8/h2-4H,8H2,1H3,(H,9,10,11)
InChIKey WQTCZINVPXJNEL-UHFFFAOYSA-N
SMILES C1(S(O)(=O)=O)=CC=C(N)C(C)=C1
LogP 0.076 at 25℃
CAS DataBase Reference 98-33-9(CAS DataBase Reference)
FDA UNII ET833CB2KU
EPA Substance Registry System Benzenesulfonic acid, 4-amino-3-methyl- (98-33-9)

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  T
Risk Statements  45-34
Safety Statements  53-26-36/37/39-45
RIDADR  2811
TSCA  TSCA listed
HazardClass  8
PackingGroup  III
HS Code  2921420090
NFPA 704:
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