88-63-1

Name 2,4-Diaminobenzenesulfonic acid
CAS 88-63-1
EINECS(EC#) 201-846-5
Molecular Formula C6H8N2O3S
MDL Number MFCD00035772
Molecular Weight 188.2
MOL File 88-63-1.mol
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Chemical Properties

Appearance brown crystalline powder
Melting point  260-266 °C (dec.)
Boiling point  500°C (estimate)
density  1.366 (estimate)
vapor pressure  0Pa at 25℃
refractive index  1.6490 (estimate)
storage temp.  -20°C Freezer, Under inert atmosphere
solubility  DMSO (Slightly, Heated), Methanol (Slightly)
form  Solid
pka 2.99±0.10(Predicted)
color  White to Pale Yellow
Water Solubility  1000g/L at 25℃
BRN  2694057
InChI 1S/C6H8N2O3S/c7-4-1-2-6(5(8)3-4)12(9,10)11/h1-3H,7-8H2,(H,9,10,11)
InChIKey JVMSQRAXNZPDHF-UHFFFAOYSA-N
SMILES Nc1ccc(c(N)c1)S(O)(=O)=O
LogP -4.65
CAS DataBase Reference 88-63-1(CAS DataBase Reference)
EPA Substance Registry System 88-63-1(EPA Substance)
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319
Precautionary statements  P264-P280-P302+P352-P305+P351+P338-P332+P313-P337+P313
Hazard Codes  Xi
Risk Statements 
R36/38:Irritating to eyes and skin .
R43:May cause sensitization by skin contact.
R36/37/38:Irritating to eyes, respiratory system and skin .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/39:Wear suitable protective clothing and eye/face protection .
S37/39:Wear suitable gloves and eye/face protection .
S36:Wear suitable protective clothing .
RIDADR  1759
WGK Germany  2
RTECS  DB5900000
TSCA  TSCA listed
REACH Registrations Active
HazardClass  8
PackingGroup  III
HS Code  29309090
Storage Class 11 - Combustible Solids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
Skin Sens. 1

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Hazard Information

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