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2-Aminophenol-4-sulfonic acid Structure

2-Aminophenol-4-sulfonic acid

Chemical Properties

Melting point ≥300 °C(lit.)
Boiling point 398.09℃[at 101 325 Pa]
Density  1.5149 (rough estimate)
vapor pressure  0Pa at 25℃
refractive index  1.5500 (estimate)
storage temp.  Keep in dark place,Sealed in dry,Room Temperature
pka -0.81±0.50(Predicted)
form  powder to crystal
color  Orange to Amber to Dark red
Water Solubility  <0.1 g/100 mL at 21.5 ºC
BRN  514765
Stability Stable. Incompatible with strong oxidizing agents, strong acids and strong bases.
LogP -2.56 at 25℃
CAS DataBase Reference 98-37-3(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 4WE7CX7RD5
EPA Substance Registry System 4-Hydroxymetanilic acid (98-37-3)

Safety

Symbol(GHS) GHS hazard pictograms
Signal wordWarning
Hazard statements H315-H319
Precautionary statements P302+P352-P305+P351+P338
Hazard Codes  C
Risk Statements  34
Safety Statements  26-36/37/39-45
RIDADR  UN 2585 8/PG 3
WGK Germany  1
HS Code  2922.49.3700
HazardClass  8
PackingGroup  III
NFPA 704:
0
3 0

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