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4-Mercaptophenol Structure

4-Mercaptophenol

Chemical Properties

Melting point 33-35 °C(lit.)
Boiling point 149-150 °C25 mm Hg(lit.)
Density  1.255
refractive index  1.5101 (estimate)
Flash point >230 °F
solubility  Chloroform (Slightly), Methanol (Slightly)
pka 6.82±0.10(Predicted)
form  Liquid or Low Melting Solid
color  Clear colorless to light yellow
Water Solubility  soluble
Sensitive  Air Sensitive
BRN  2039306
Stability Stability Air sensitive. Incompatible with oxidizing agents.
LogP 1.690 (est)
CAS DataBase Reference 637-89-8(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII TAL4TS4AC3
NIST Chemistry Reference 4-Mercaptophenol(637-89-8)
EPA Substance Registry System Phenol, 4-mercapto- (637-89-8)

Safety

Symbol(GHS)
Signal wordWarning
Hazard statements H315-H319-H335
Precautionary statements P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi,C,Xn
Risk Statements  36/37/38-34-20/21/22
Safety Statements  26-36/37-45-36/37/39-36-7/9
RIDADR  2811
WGK Germany  3
RTECS  MX7175000
10-13-23
Hazard Note  Harmful/Irritant
HazardClass  AIR SENSITIVE, IRRITANT-HARMFUL, STENCH
HazardClass  8
PackingGroup  III
HS Code  29309090
NFPA 704:
1
3 0

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