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Metabolites & Degradation Products

4-Hydroxy-3-methoxybenzenesulfonic Acid

Reference StandardAvailable on request

Order 4-Hydroxy-3-methoxybenzenesulfonic Acid (CAS 7134-11-4) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
4-Hydroxy-3-methoxybenzenesulfonic Acid chemical structure
CAS number7134-11-4
FormulaC7H8O5S
Molar mass204.2 g/mol
Physical formSolid
HS code38229090
InChIKeyQDRCGSIKAHSALR-UHFFFAOYSA-N
IUPAC name4-hydroxy-3-methoxybenzenesulfonic acid

About 4-Hydroxy-3-methoxybenzenesulfonic Acid

Analytical teams working on Guaiacol use 4-Hydroxy-3-methoxybenzenesulfonic Acid as a qualified comparison standard. For your records (Reference Standard), the material is defined by CAS 7134-11-4, formula C7H8O5S and molar mass 204.2 g/mol. It is handled as a solid.

Use cases we see most often

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling
  • Fine chemical synthesis

Storage and safety notes

Classified under GHS with signal word Warning and hazard statements H302, H315, H319 and H332. Read the SDS before first use.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Guaiacol

See every impurity, metabolite and related compound we list for this API.

Guaiacol standards

Typical uses

  • Metabolite identification
  • Stability-indicating methods
  • Impurity profiling
  • Fine chemical synthesis

Applications

Specifications and identifiers

Specifications of 4-Hydroxy-3-methoxybenzenesulfonic Acid
Product name4-Hydroxy-3-methoxybenzenesulfonic Acid
Catalogue numberZX-036475
CAS number7134-11-4
IUPAC name4-hydroxy-3-methoxybenzenesulfonic acid
Molecular formulaC7H8O5S
Molar mass204.2 g/mol
Exact mass204.0092
GradeReference Standard
Physical formSolid
XLogP3-0.4
H-bond donors / acceptors2 / 5
Topological polar surface area92.2 Ų
HS code38229090
InChIKeyQDRCGSIKAHSALR-UHFFFAOYSA-N
SMILESCOC1=C(C=CC(=C1)S(=O)(=O)O)O
PubChem CID4874
SynonymsSulfogaiacol, Guaiacolsulfonic acid, 4-guaiacolsulfonic acid, Benzenesulfonic acid, 4-hydroxy-3-methoxy-, Guaiacolsulfonate, 4-hydroxy-3-methoxybenzene-1-sulfonic acid, 4-Hydroxy-3-methoxybenzenesulphonic acid, Guajacol-5-sulfosaure

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

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H332Harmful if inhaled

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P317, P321, P330, P332 + P317, P337 + P317, P362 + P364, 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-Hydroxy-3-methoxybenzenesulfonic Acid
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted 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-Hydroxy-3-methoxybenzenesulfonic Acid

Which CAS number identifies 4-Hydroxy-3-methoxybenzenesulfonic Acid?
4-Hydroxy-3-methoxybenzenesulfonic Acid is registered under CAS 7134-11-4. You may also see it listed as Sulfogaiacol, Guaiacolsulfonic acid, 4-guaiacolsulfonic acid. Our catalogue number for this item is ZX-036475.
What are the formula and molar mass of 4-Hydroxy-3-methoxybenzenesulfonic Acid?
For 4-Hydroxy-3-methoxybenzenesulfonic Acid, its formula is C7H8O5S and its molar mass is 204.2 g/mol. The systematic (IUPAC) name is 4-hydroxy-3-methoxybenzenesulfonic acid. InChIKey QDRCGSIKAHSALR-UHFFFAOYSA-N lets you match it in any structure database.
How is 4-Hydroxy-3-methoxybenzenesulfonic Acid used in pharmaceutical QC?
4-Hydroxy-3-methoxybenzenesulfonic Acid is a characterised reference material linked to Guaiacol. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 4-Hydroxy-3-methoxybenzenesulfonic Acid?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 4-Hydroxy-3-methoxybenzenesulfonic 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 4-Hydroxy-3-methoxybenzenesulfonic Acid to my country?
Yes. Because 4-Hydroxy-3-methoxybenzenesulfonic 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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