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Sulfur Compounds (Thiols, Sulfides, Sulfonates)

4-Mercaptophenylacetic acid, 97%

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4-Mercaptophenylacetic acid, 97% (CAS 39161-84-7) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery.

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4-Mercaptophenylacetic acid, 97% chemical structure
CAS number39161-84-7
FormulaC8H8O2S
Molar mass168.21 g/mol
Physical formPowder
HS code29333990
Purity97%
InChIKeyORXSLDYRYTVAPC-UHFFFAOYSA-N
IUPAC name2-(4-sulfanylphenyl)acetic acid

About 4-Mercaptophenylacetic acid, 97%

Researchers and plant chemists source 4-Mercaptophenylacetic acid, 97% from Zemixal for routine and specialised work. Identity at a glance (97%): CAS 39161-84-7, formula C8H8O2S and molar mass 168.21 g/mol. Expect white to almost white powder.

Common uses in the lab and plant

  • Protein & peptide research
  • Organic synthesis

Storage and safety notes

Recommended storage temperature is 2–8 °C. Literature values: melting point 105-109 °C. It carries the GHS signal word Danger (H315, H318, H319 and H335), so wear gloves and eye protection and work with good ventilation.

Available as 100 mg, 500 mg and 1 g. Larger or split packs can be arranged. You receive a batch certificate of analysis and a 16-section SDS with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Typical uses

  • Protein & peptide research
  • Organic synthesis

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of 4-Mercaptophenylacetic acid, 97%
Product name4-Mercaptophenylacetic acid, 97%
Catalogue numberZX-009854
CAS number39161-84-7
IUPAC name2-(4-sulfanylphenyl)acetic acid
Molecular formulaC8H8O2S
Molar mass168.21 g/mol
Exact mass168.0245
Purity / assay97%
Physical formPowder
AppearanceWhite to almost white powder
Melting point105-109 °C
XLogP31.8
H-bond donors / acceptors2 / 3
Topological polar surface area38.3 Ų
Storage2–8 °C
HS code29333990
InChIKeyORXSLDYRYTVAPC-UHFFFAOYSA-N
SMILESC1=CC(=CC=C1CC(=O)O)S
PubChem CID3390511
Synonyms2-(4-mercaptophenyl)acetic acid, Benzeneacetic acid, 4-mercapto-, 4-mercaptobenzeneacetic acid, p-Mercaptophenylacetic acid, (4-Carboxymethyl)thiophenol, MPAA cpd, 4-Mercaptobenzeneacetate, (4-mercaptophenyl)acetic acid, Benzeneacetic acid,4-mercapto-, (4-mercapto-phenyl)-acetic acid, 4-Mercaptophenylacetic acid 97%, 4-mercaptophenylaceti cacid

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS05 Corrosive
Corrosive
GHS07 Irritant or harmful
Irritant or harmful

Signal word Danger

  • H315Causes skin irritation
  • H318Causes serious eye damage
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P317, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 4-Mercaptophenylacetic acid, 97%
100 mgQuoted on request
500 mgQuoted on request
1 gQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 4-Mercaptophenylacetic acid, 97%

Which CAS number identifies 4-Mercaptophenylacetic acid, 97%?
4-Mercaptophenylacetic acid, 97% is registered under CAS 39161-84-7. You may also see it listed as 2-(4-mercaptophenyl)acetic acid, Benzeneacetic acid, 4-mercapto-, 4-mercaptobenzeneacetic acid. Our catalogue number for this item is ZX-009854.
What are the formula and molar mass of 4-Mercaptophenylacetic acid, 97%?
For 4-Mercaptophenylacetic acid, 97%, its formula is C8H8O2S and its molar mass is 168.21 g/mol. The systematic (IUPAC) name is 2-(4-sulfanylphenyl)acetic acid. InChIKey ORXSLDYRYTVAPC-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for 4-Mercaptophenylacetic acid, 97%?
This listing is 97% purity. Standard packs are 100 mg, 500 mg, 1 g. Larger quantities and custom packing can be quoted on request.
Which documents come with 4-Mercaptophenylacetic acid, 97%?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 4-Mercaptophenylacetic acid, 97% to my country?
Yes. Because 4-Mercaptophenylacetic acid, 97% is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.
How do I store 4-Mercaptophenylacetic acid, 97%?
2–8 °C. Keep the container closed and follow the handling advice in the SDS.

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