Acetazolamide EP Impurity A

Name: Acetazolamide EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-021416

About Acetazolamide EP Impurity A

Acetazolamide EP Impurity A (CAS 60320-32-3) is a pharmacopeial impurity standard offered by Vaqora Chemicals. Its molecular formula is C4H4ClN3OS and its molecular weight is 177.61 g/mol. The IUPAC name is N-(5-chloro-1,3,4-thiadiazol-2-yl)acetamide. Common synonyms include Acetazolamide - Impurity A and 2-Amino-5-acetamido-1,3,4-thiadiazole.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

This the parent drug substance impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Acetazolamide EP Impurity A is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Acetazolamide EP Impurity A
Catalogue No.	VQ-021416
CAS Number	60320-32-3
IUPAC name	N-(5-chloro-1,3,4-thiadiazol-2-yl)acetamide
Molecular formula	C₄H₄ClN₃OS
Molecular weight	177.61 g/mol
Exact mass	176.9764
Grade	Reference Standard
HSN code	38229090
InChIKey	CKUUONNLVFAZNC-UHFFFAOYSA-N
SMILES	CC(=O)NC1=NN=C(S1)Cl
PubChem CID	314332

Physical properties
Physical form	Solid
LogP (XLogP3)	1.8
H-bond donors / acceptors	1 / 4
TPSA	83.1 Å²
Synonyms	Acetazolamide - Impurity A, 2-Amino-5-acetamido-1,3,4-thiadiazole, 2-(Acetylamino)-5-chloro-1,3,4-thiadiazole, 1,3,4-Thiadiazole, 2-acetamido-5-chloro-, Acetamide, N-(5-chloro-1,3,4-thiadiazol-2-yl)-, Acetazolamide Impurity A, 2-acetamido-5-chloro-1,3,4-thiadiazole, N-(5-Chloro-[1,3,4]thiadiazol-2-yl)-acetamide

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, 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 Acetazolamide EP Impurity A?

The CAS Registry Number of Acetazolamide EP Impurity A is 60320-32-3. It is also known as Acetazolamide - Impurity A, 2-Amino-5-acetamido-1,3,4-thiadiazole, 2-(Acetylamino)-5-chloro-1,3,4-thiadiazole.

What is the molecular formula and molecular weight of Acetazolamide EP Impurity A?

Acetazolamide EP Impurity A has the molecular formula C4H4ClN3OS and a molecular weight of 177.61 g/mol. Its IUPAC name is N-(5-chloro-1,3,4-thiadiazol-2-yl)acetamide.

Which grade and pack sizes of Acetazolamide EP Impurity A can I order?

We supply Acetazolamide EP Impurity A in Reference Standard grade, 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 Acetazolamide EP Impurity A?

Yes. Every lot of Acetazolamide EP Impurity A 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 Acetazolamide EP Impurity A be shipped internationally?

Yes. Acetazolamide EP Impurity A 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.