81-16-3

Name 2-Aminonaphthalene-1-sulfonic acid
CAS 81-16-3
EINECS(EC#) 201-331-5
Molecular Formula C10H9NO3S
MDL Number MFCD00003988
Molecular Weight 223.25
MOL File 81-16-3.mol
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Chemical Properties

Melting point  180 °C
Boiling point  220°C (rough estimate)
density  1.3588 (rough estimate)
refractive index  1.5250 (estimate)
storage temp.  -20°C Freezer, Under inert atmosphere
solubility  DMSO (Slightly), Methanol (Slightly, Heated), Water (Slightly, Heated)
form  Solid
pka pK1: 2.35 (25°C)
color  White to Off-White
Water Solubility  4.083g/L(20 ºC)
Merck  14,6406
BRN  613084
Uses
Azo dye intermediate, optical brighteners.
CAS DataBase Reference 81-16-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Naphthylamine-1-sulfonic acid(81-16-3)
EPA Substance Registry System 81-16-3(EPA Substance)

Safety Data

Risk Statements 
R36/37/38:Irritating to eyes, respiratory system and skin .
R40:Limited evidence of a carcinogenic effect.
Safety Statements 
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 .
RIDADR  2585
WGK Germany  1
RTECS  QK1250000
TSCA  Yes
HS Code  2921.45.9010
HazardClass  8
PackingGroup  III
Hazardous Substances Data 81-16-3(Hazardous Substances Data)

Raw materials And Preparation Products

Hazard Information

Material Safety Data Sheet(MSDS)

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