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Sulfur Compounds (Thiols, Sulfides, Sulfonates)

o-Cresol-4-sulfonic Acid

Available on request

Buy o-Cresol-4-sulfonic Acid (CAS 7134-04-5) from Zemixal: C7H8O4S, COA and SDS with every lot, worldwide shipping. Quotes within one business day.

Pack sizes
o-Cresol-4-sulfonic Acid chemical structure
CAS number7134-04-5
FormulaC7H8O4S
Molar mass188.2 g/mol
InChIKeyYCOXCINCKKAZMJ-UHFFFAOYSA-N
IUPAC name4-hydroxy-3-methylbenzenesulfonic acid

About o-Cresol-4-sulfonic Acid

Zemixal supplies o-Cresol-4-sulfonic Acid within its pharma Intermediates & Building Blocks portfolio. Key data: CAS 7134-04-5, formula C7H8O4S and molar mass 188.2 g/mol.

Use cases we see most often

  • Organic synthesis
  • API synthesis

Safe handling

Hazard communication follows GHS (Danger: H302, H314, H318 and H412). Our SDS lists exposure controls and first-aid measures.

Available as 100 mg, 250 mg, 1 g and 5 g. Larger or split packs can be arranged. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.

Typical uses

  • Organic synthesis
  • API synthesis

Applications

Specifications and identifiers

Specifications of o-Cresol-4-sulfonic Acid
Product nameo-Cresol-4-sulfonic Acid
Catalogue numberZX-045664
CAS number7134-04-5
IUPAC name4-hydroxy-3-methylbenzenesulfonic acid
Molecular formulaC7H8O4S
Molar mass188.2 g/mol
Exact mass188.0143
XLogP30.1
H-bond donors / acceptors2 / 4
Topological polar surface area83 Ų
InChIKeyYCOXCINCKKAZMJ-UHFFFAOYSA-N
SMILESCC1=C(C=CC(=C1)S(=O)(=O)O)O
PubChem CID407379
SynonymsBenzenesulfonic acid, 4-hydroxy-3-methyl-, 4-(o-Cresol)sulfonic acid, 2-methyl-1-phenol-4-sulfonic acid, 2-Methylphenol-4-sulfonic acid, 3-Methyl-4-hydroxybenzenesulfonic acid, m-Toluenesulfonic acid, 4-hydroxy-, 4-hydroxy-3-methylbenzene-1-sulfonic acid, o-Cresol-4-sulphonic acid, 3-methyl-4-hydroxy-benzenesulfonic acid, 4-hydroxy-3-methyl-benzenesulfonic acid

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

  • H302Harmful if swallowed
  • H314Causes severe skin burns and eye damage
  • H318Causes serious eye damage
  • H412Harmful to aquatic life with long lasting effects

Precautionary statements P260, P264, P264 + P265, P270, P273, P280, P301 + P317, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P321, P330, P363, 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 o-Cresol-4-sulfonic Acid
100 mgQuoted on request
250 mgQuoted on request
1 gQuoted on request
5 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 o-Cresol-4-sulfonic Acid

Which CAS number identifies o-Cresol-4-sulfonic Acid?
o-Cresol-4-sulfonic Acid is registered under CAS 7134-04-5. You may also see it listed as Benzenesulfonic acid, 4-hydroxy-3-methyl-, 4-(o-Cresol)sulfonic acid, 2-methyl-1-phenol-4-sulfonic acid. Our catalogue number for this item is ZX-045664.
What are the formula and molar mass of o-Cresol-4-sulfonic Acid?
For o-Cresol-4-sulfonic Acid, its formula is C7H8O4S and its molar mass is 188.2 g/mol. The systematic (IUPAC) name is 4-hydroxy-3-methylbenzenesulfonic acid. InChIKey YCOXCINCKKAZMJ-UHFFFAOYSA-N lets you match it in any structure database.
What grade and pack sizes are available for o-Cresol-4-sulfonic Acid?
The grade and assay are confirmed on the quotation and the batch COA. Standard packs are 100 mg, 250 mg, 1 g, 5 g. Larger quantities and custom packing can be quoted on request.
Which documents come with o-Cresol-4-sulfonic Acid?
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 o-Cresol-4-sulfonic Acid to my country?
Yes. Because o-Cresol-4-sulfonic Acid 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.

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