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4-Mercaptophenol

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4-Mercaptophenol Basic information

Product Name:
4-Mercaptophenol
Synonyms:
  • Phenol, 4-mercapto-
  • Phenol, p-mercapto-
  • p-Hydroxythiophenol
  • Thiohydroquinone
  • USAF B-57
  • usafb-57
  • Hydroxythiophenol,94%
  • 4-MERCAPTOPHENOL, TECH., 90%
CAS:
637-89-8
MF:
C6H6OS
MW:
126.18
EINECS:
211-307-6
Product Categories:
  • Building Blocks
  • Chemical Synthesis
  • Phenol&Thiophenol&Mercaptan
  • Organic Building Blocks
  • Sulfur Compounds
  • Thiols/Mercaptans
  • Phenoles and thiophenoles
  • Miscellaneous
Mol File:
637-89-8.mol
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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)
form 
Liquid or Low Melting Solid
pka
6.82±0.10(Predicted)
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)
NIST Chemistry Reference
4-Mercaptophenol(637-89-8)
EPA Substance Registry System
Phenol, 4-mercapto- (637-89-8)
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Safety Information

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

MSDS

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4-Mercaptophenol Usage And Synthesis

Chemical Properties

Clear colorless to light yellow solid or liquid

Uses

4-Mercaptophenol was used as a resin monomer in the study of the different gold nanocrystal core-resin shell structures.

Uses

4-Mercaptophenol (MPH) has been used to study the adsorption of MPH on silver coated polystyrene nanospheres by time-dependent surface-enhanced Raman scattering (SERS) spectroscopy.
4-Mercaptophenol may be used in the preparation of silylated monomer, which was employed for the synthesis of hyperbranched poly(ester-imide). 4-Mercaptophenol (H-4MP) reacts with metal tert-butoxides ([M(OBut)4]) to yield the following Group 4 phenoxy-thiols:

  • [(HOBut)(4MP)3M(μ-4MP)]2, where M = Ti, Zr, Hf
  • [(py)2M(4MP)], where M = Ti, Zr; py = pyridine
  • [(py)(4MP)3Hf(μ-4MP)]2
4-Mercaptophenol may be used in the synthesis of the following:
  • poly(ethersulfide)s via silylation followed by polycondensation with 2,6-dichloropyridine or 3,6-dichloropyridazine
  • 2,6-di-tertiarybutyl-4-mercaptophenol via Friedel-Craft′s alkylation with tert-butyl chloride in presence of a lewis acid

General Description

The density function theory calculations were performed to infer the IR and Raman spectra for 4-mercaptophenol molecule.

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