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API Process Intermediates & Related Compounds

2,5-Dichlorothiophene-3-carboxylic Acid

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Buy 2,5-Dichlorothiophene-3-carboxylic Acid (CAS 36157-41-2) from Zemixal. Lab and bulk packs, batch COA, fast global delivery.

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2,5-Dichlorothiophene-3-carboxylic Acid chemical structure
CAS number36157-41-2
FormulaC5H2Cl2O2S
Molar mass197.04 g/mol
Physical formSolid
InChIKeyFBUUZRITKBLZJX-UHFFFAOYSA-N
IUPAC name2,5-dichlorothiophene-3-carboxylic acid

About 2,5-Dichlorothiophene-3-carboxylic Acid

Researchers and plant chemists source 2,5-Dichlorothiophene-3-carboxylic Acid from Zemixal for routine and specialised work. Key data: CAS 36157-41-2, formula C5H2Cl2O2S and molar mass 197.04 g/mol. It is handled as a solid.

Use cases we see most often

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Storage and safety notes

Hazard communication follows GHS (Warning: H302, H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Ramelteon

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

Ramelteon standards

Typical uses

  • API route development
  • Impurity fate & purge studies
  • Analytical method development

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of 2,5-Dichlorothiophene-3-carboxylic Acid
Product name2,5-Dichlorothiophene-3-carboxylic Acid
Catalogue numberZX-039733
CAS number36157-41-2
IUPAC name2,5-dichlorothiophene-3-carboxylic acid
Molecular formulaC5H2Cl2O2S
Molar mass197.04 g/mol
Exact mass195.9153
Physical formSolid
XLogP33.1
H-bond donors / acceptors1 / 3
Topological polar surface area65.5 Ų
InChIKeyFBUUZRITKBLZJX-UHFFFAOYSA-N
SMILESC1=C(SC(=C1C(=O)O)Cl)Cl
PubChem CID225438
Synonyms2,5-Dichloro-3-thiophenecarboxylic acid, 3-Thiophenecarboxylic acid, 2,5-dichloro-, 2,5-dichloro-3-thenoic acid, 2,5-Dichlorothiophene-3-carboxylicacid,98+%

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
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, 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 2,5-Dichlorothiophene-3-carboxylic 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 2,5-Dichlorothiophene-3-carboxylic Acid

Which CAS number identifies 2,5-Dichlorothiophene-3-carboxylic Acid?
2,5-Dichlorothiophene-3-carboxylic Acid is registered under CAS 36157-41-2. You may also see it listed as 2,5-Dichloro-3-thiophenecarboxylic acid, 3-Thiophenecarboxylic acid, 2,5-dichloro-, 2,5-dichloro-3-thenoic acid. Our catalogue number for this item is ZX-039733.
What are the formula and molar mass of 2,5-Dichlorothiophene-3-carboxylic Acid?
For 2,5-Dichlorothiophene-3-carboxylic Acid, its formula is C5H2Cl2O2S and its molar mass is 197.04 g/mol. The systematic (IUPAC) name is 2,5-dichlorothiophene-3-carboxylic acid. InChIKey FBUUZRITKBLZJX-UHFFFAOYSA-N lets you match it in any structure database.
How is 2,5-Dichlorothiophene-3-carboxylic Acid used in pharmaceutical QC?
2,5-Dichlorothiophene-3-carboxylic Acid is a characterised reference material linked to Ramelteon. 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 2,5-Dichlorothiophene-3-carboxylic Acid?
The grade and assay are confirmed on the quotation and the batch COA. 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 2,5-Dichlorothiophene-3-carboxylic 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 2,5-Dichlorothiophene-3-carboxylic Acid to my country?
Yes. Because 2,5-Dichlorothiophene-3-carboxylic 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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