559938

4-Mercaptophenol

97%

• Synonym(s): 4-Hydroxythiophenol
• Linear Formula: HSC₆H₄OH
• CAS Number: 637-89-8
• Molecular Weight: 126.18
• Beilstein: 2039306
• EC Number: 211-307-6
• MDL number: MFCD00004850
• UNSPSC Code: 12352100
• PubChem Substance ID: 24879829
• NACRES: NA.22

Properties

• Assay: 97%
• bp: 149-150 °C/25 mmHg (lit.)
• mp: 33-35 °C (lit.)
• SMILES string: Oc1ccc(S)cc1
• InChI: 1S/C6H6OS/c7-5-1-3-6(8)4-2-5/h1-4,7-8H
• InChI key: BXAVKNRWVKUTLY-UHFFFAOYSA-N

Description

Application

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(OBu^t)₄]) to yield the following Group 4 phenoxy-thiols:

• [(HOBu^t)(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

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H315,H319,H335
• Precautionary Statements: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Hazard Classifications: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Target Organs: Respiratory system
• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): 230.0 °F - closed cup
• Flash Point(C): 110 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves