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VAQORACHEMICALS
Pharmacopeial Impurities (EP / USP / BP)Reference StandardAvailable on request

Acetazolamide EP Impurity C

Synonyms: Acetazolamide - Impurity C · 2-Acetylamino-5-mercapto-1,3,4-thiadiazole · 2-Acetamido-5-mercapto-1,3,4-Thiadiazole · N-(5-mercapto-1,3,4-thiadiazol-2-yl)acetamide

CAS No.32873-56-6
FormulaC4H5N3OS2
Mol. weight175.20
Catalogue No.VQ-020722
PurityReference Standard
HSN38229090

Acetazolamide EP Impurity C (CAS 32873-56-6) – pharmacopeial impurity standard. C4H5N3OS2, MW 175.2. Request a quote: COA, bulk packs and worldwide export.

Pack sizesPrice on quotation · bulk available
10 mg
25 mg
50 mg
100 mg
Bulk / custom pack · kg to MT
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Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing

About Acetazolamide EP Impurity C

Vaqora Chemicals supplies Acetazolamide EP Impurity C, a pharmacopeial impurity standard registered under CAS number 32873-56-6. Formula C4H5N3OS2, molecular weight 175.2 g/mol. The IUPAC name is N-(2-sulfanylidene-3H-1,3,4-thiadiazol-5-yl)acetamide. Common synonyms include Acetazolamide - Impurity C and 2-Acetylamino-5-mercapto-1,3,4-thiadiazole.

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 “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Pharmaceutical QC and development laboratories use this impurity standard of the parent drug substance to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Acetazolamide EP Impurity C in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product nameAcetazolamide EP Impurity C
Catalogue No.VQ-020722
CAS Number32873-56-6
IUPAC nameN-(2-sulfanylidene-3H-1,3,4-thiadiazol-5-yl)acetamide
Molecular formulaC4H5N3OS2
Molecular weight175.2 g/mol
Exact mass174.9874
GradeReference Standard
HSN code38229090
InChIKeyDWSMAMSVZRCQMP-UHFFFAOYSA-N
SMILESCC(=O)NC1=NNC(=S)S1
PubChem CID2723687
Physical properties
Physical formSolid
LogP (XLogP3)0.5
H-bond donors / acceptors2 / 4
TPSA111 Ų
SynonymsAcetazolamide - Impurity C, 2-Acetylamino-5-mercapto-1,3,4-thiadiazole, 2-Acetamido-5-mercapto-1,3,4-Thiadiazole, N-(5-mercapto-1,3,4-thiadiazol-2-yl)acetamide, N-(5-sulfanyl-1,3,4-thiadiazol-2-yl)acetamide, N-(4,5-Dihydro-5-thioxo-1,3,4-thiadiazol-2-yl)acetamide, acetamide, N-(5-mercapto-1,3,4-thiadiazol-2-yl)-, 5-acetylamino-1,3,4-thiadiazoline-2-thione, Acetamide, N-(4,5-dihydro-5-thioxo-1,3,4-thiadiazol-2-yl)-, N-(5-sulfanylidene-4,5-dihydro-1,3,4-thiadiazol-2-yl)acetamide, EAMTD:2-Acetylamino-5-Mercapto-1,3,4-Thiadiazole, N-(5-Thioxo-4,5-dihydro-1,3,4-thiadiazol-2-yl)acetamide

Safety & hazard information (GHS)

GHS07 Harmful / irritant
Harmful / irritant
GHS08 Health hazard
Health hazard

Signal word: Danger

Hazard statements

  • H302Harmful if swallowed
  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
  • H335May cause respiratory irritation

Precautionary statements: P233, P260, P261, P264, P264 + P265, P270, P271, P280, P284, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P330, P332 + P317, P337 + P317, P342 + P316, P362 + P364, P403, 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

Frequently asked questions

What is the CAS number of Acetazolamide EP Impurity C?

The CAS Registry Number of Acetazolamide EP Impurity C is 32873-56-6. It is also known as Acetazolamide - Impurity C, 2-Acetylamino-5-mercapto-1,3,4-thiadiazole, 2-Acetamido-5-mercapto-1,3,4-Thiadiazole.

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

Acetazolamide EP Impurity C has the molecular formula C4H5N3OS2 and a molecular weight of 175.2 g/mol. Its IUPAC name is N-(2-sulfanylidene-3H-1,3,4-thiadiazol-5-yl)acetamide.

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

We supply Acetazolamide EP Impurity C 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 C?

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

Yes. Acetazolamide EP Impurity C 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.

Enquire about Acetazolamide EP Impurity C

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Why buyers choose Vaqora

  • Batch-traceable lots with COA
  • R&D packs to multi-tonne supply
  • IATA / IMDG dangerous-goods packing
  • EXW, FOB, CIF, DAP Incoterms
  • Custom synthesis & sourcing
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