Acetazolamide EP Impurity D

Name: Acetazolamide EP Impurity D
Brand: Vaqora Chemicals
SKU: VQ-021417

About Acetazolamide EP Impurity D

Acetazolamide EP Impurity D is a pharmacopeial impurity standard carrying the CAS registry number 14949-00-9. The compound has the formula C2H4N4O2S2, corresponding to a molecular weight of 180.21 g/mol. Its systematic (IUPAC) name is 5-amino-1,3,4-thiadiazole-2-sulfonamide. Common synonyms include Acetazolamide EP Impurity D (Free Base) and Acetazolamide - Impurity D (Freebase).

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. It carries the GHS signal word “Warning” with 4 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of the parent drug substance, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Acetazolamide EP Impurity D 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 D
Catalogue No.	VQ-021417
CAS Number	14949-00-9
IUPAC name	5-amino-1,3,4-thiadiazole-2-sulfonamide
Molecular formula	C₂H₄N₄O₂S₂
Molecular weight	180.21 g/mol
Exact mass	179.9776
Grade	Reference Standard
HSN code	38229090
InChIKey	VGMVBPQOACUDRU-UHFFFAOYSA-N
SMILES	C1(=NN=C(S1)S(=O)(=O)N)N
PubChem CID	84724

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.9
H-bond donors / acceptors	2 / 7
TPSA	149 Å²
Synonyms	Acetazolamide EP Impurity D (Free Base), Acetazolamide - Impurity D (Freebase), 5-Amino-TDSNH2, 2-Amino-1,3,4-thiadiazole-5-sulfonamide, Hats cpd, Tio-urasin, 1,3,4-Thiadiazole-2-sulfonamide, 5-amino-, 2-Amino-1,3,4-thiadazole-5-sulfonamide, 1,3,4-Thiadiazole-2-sulfonamide, 5-amino- (8CI)(9CI), 5-amino-1,3,4-thiadiazol-2-sulfonamide, Zolamide, Acetazolamide Impurity D

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 Acetazolamide EP Impurity D?

The CAS Registry Number of Acetazolamide EP Impurity D is 14949-00-9. It is also known as Acetazolamide EP Impurity D (Free Base), Acetazolamide - Impurity D (Freebase), 5-Amino-TDSNH2.

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

Acetazolamide EP Impurity D has the molecular formula C2H4N4O2S2 and a molecular weight of 180.21 g/mol. Its IUPAC name is 5-amino-1,3,4-thiadiazole-2-sulfonamide.

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

We supply Acetazolamide EP Impurity D 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 D?

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

Yes. Acetazolamide EP Impurity D 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.