2,5-Dichlorothiophene-3-carboxylic Acid

Name: 2,5-Dichlorothiophene-3-carboxylic Acid
Brand: Vaqora Chemicals
SKU: VQ-049602

About 2,5-Dichlorothiophene-3-carboxylic Acid

Listed under CAS 36157-41-2, 2,5-Dichlorothiophene-3-carboxylic Acid is a process intermediate or related compound of Ramelteon available from Vaqora Chemicals. The compound has the formula C5H2Cl2O2S, corresponding to a molecular weight of 197.04 g/mol. Common synonyms include 2,5-Dichloro-3-thiophenecarboxylic acid and 3-Thiophenecarboxylic acid, 2,5-dichloro-.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Process chemists and analysts use it when developing synthetic routes to Ramelteon, tracking process-related impurities and validating analytical methods. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 2,5-Dichlorothiophene-3-carboxylic Acid in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Ramelteon

View every impurity, metabolite and intermediate we list for Ramelteon.

Ramelteon impurities

Specifications & identifiers

Chemical identifiers
Product name	2,5-Dichlorothiophene-3-carboxylic Acid
Catalogue No.	VQ-049602
CAS Number	36157-41-2
IUPAC name	2,5-dichlorothiophene-3-carboxylic acid
Molecular formula	C₅H₂Cl₂O₂S
Molecular weight	197.04 g/mol
Exact mass	195.9153
InChIKey	FBUUZRITKBLZJX-UHFFFAOYSA-N
SMILES	C1=C(SC(=C1C(=O)O)Cl)Cl
PubChem CID	225438

Physical properties
Physical form	Solid
LogP (XLogP3)	3.1
H-bond donors / acceptors	1 / 3
TPSA	65.5 Å²

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

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 is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 2,5-Dichlorothiophene-3-carboxylic Acid?

The CAS Registry Number of 2,5-Dichlorothiophene-3-carboxylic Acid is 36157-41-2. It is also known as 2,5-Dichloro-3-thiophenecarboxylic acid, 3-Thiophenecarboxylic acid, 2,5-dichloro-, 2,5-dichloro-3-thenoic acid.

What is the molecular formula and molecular weight of 2,5-Dichlorothiophene-3-carboxylic Acid?

2,5-Dichlorothiophene-3-carboxylic Acid has the molecular formula C5H2Cl2O2S and a molecular weight of 197.04 g/mol. Its IUPAC name is 2,5-dichlorothiophene-3-carboxylic acid.

What is 2,5-Dichlorothiophene-3-carboxylic Acid used for?

2,5-Dichlorothiophene-3-carboxylic Acid is supplied as a characterised reference material related to Ramelteon. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 2,5-Dichlorothiophene-3-carboxylic Acid can I order?

We supply 2,5-Dichlorothiophene-3-carboxylic Acid, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 2,5-Dichlorothiophene-3-carboxylic Acid?

Yes. Every lot of 2,5-Dichlorothiophene-3-carboxylic Acid is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 2,5-Dichlorothiophene-3-carboxylic Acid be shipped internationally?

Yes. 2,5-Dichlorothiophene-3-carboxylic Acid is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.