Acetazolamide

Name: Acetazolamide
Brand: Vaqora Chemicals
SKU: VQ-020720

About Acetazolamide

Acetazolamide is an API impurity reference standard carrying the CAS registry number 59-66-5. Formula C4H6N4O3S2, molecular weight 222.3 g/mol. Systematically, it is named N-(5-sulfamoyl-1,3,4-thiadiazol-2-yl)acetamide. It is also known as Nephramide or Dehydratin.

The product is provided 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 2 hazard statements. 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. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Acetazolamide in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Specifications & identifiers

Chemical identifiers
Product name	Acetazolamide
Catalogue No.	VQ-020720
CAS Number	59-66-5
IUPAC name	N-(5-sulfamoyl-1,3,4-thiadiazol-2-yl)acetamide
Molecular formula	C₄H₆N₄O₃S₂
Molecular weight	222.3 g/mol
Exact mass	221.9881
Grade	Reference Standard
HSN code	38229090
InChIKey	BZKPWHYZMXOIDC-UHFFFAOYSA-N
SMILES	CC(=O)NC1=NN=C(S1)S(=O)(=O)N
PubChem CID	1986

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.3
H-bond donors / acceptors	2 / 7
TPSA	152 Å²
Synonyms	Nephramide, Dehydratin, Diutazol, 5-Acetamido-1,3,4-thiadiazole-2-sulfonamide, Acetazoleamide, Diureticum-holzinger, Acetamidothiadiazolesulfonamide, 4-Diamox, Acetamide, N-[5-(aminosulfonyl)-1,3,4-thiadiazol-2-yl]-, Carbonic Anhydrase Inhibitor No. 6063, 2-Acetylamino-1,3,4-thiadiazole-5-sulfonamide, 2-Acetamido-5-sulfonamido-1,3,4-thiadiazole

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P203, P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P318, P321, P332 + P317, P337 + P317, P362 + P364, 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?

The CAS Registry Number of Acetazolamide is 59-66-5. It is also known as Nephramide, Dehydratin, Diutazol.

What is the molecular formula and molecular weight of Acetazolamide?

Acetazolamide has the molecular formula C4H6N4O3S2 and a molecular weight of 222.3 g/mol. Its IUPAC name is N-(5-sulfamoyl-1,3,4-thiadiazol-2-yl)acetamide.

Which grade and pack sizes of Acetazolamide can I order?

We supply Acetazolamide 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?

Yes. Every lot of Acetazolamide 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 be shipped internationally?

Yes. Acetazolamide 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.