98-33-9

Name 2-Aminotoluene-5-sulfonic acid
CAS 98-33-9
EINECS(EC#) 202-658-6
Molecular Formula C7H9NO3S
MDL Number MFCD00025198
Molecular Weight 187.22
MOL File 98-33-9.mol
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Chemical Properties

Melting point  290°C
density  1.3553 (rough estimate)
refractive index  1.6100 (estimate)
storage temp.  Storage temp. 2-8°C
form  powder
pka pK1: 3.125 (25°C)
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)
EPA Substance Registry System 98-33-9(EPA Substance)

Safety Data

Hazard Codes  T
Risk Statements 
R45:May cause cancer.
R34:Causes burns.
Safety Statements 
S53:Avoid exposure-obtain special instruction before use .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
RIDADR  2811
TSCA  Yes
REACH Registrations Active
HazardClass  8
PackingGroup  III
HS Code  2921420090

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