Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

1005004

USP

Acetazolamide

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

5-Acetamido-1,3,4-thiadiazole-2-sulfonamide, N-(5-Sulfamoyl-1,3,4-thiadiazol-2-yl)acetamide, N-(5-[Aminosulfonyl]-1,3,4-thiadiazol-2-yl)acetamide

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C4H6N4O3S2
CAS Number:
59-66-5
Molecular Weight:
222.25
MDL number:
MFCD00003105
UNSPSC Code:
41116107
PubChem Substance ID:
329748132
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

acetazolamide

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

CC(=O)Nc1nnc(s1)S(N)(=O)=O

InChI

1S/C4H6N4O3S2/c1-2(9)6-3-7-8-4(12-3)13(5,10)11/h1H3,(H2,5,10,11)(H,6,7,9)

InChI key

BZKPWHYZMXOIDC-UHFFFAOYSA-N

Gene Information

human ... CA1(759) , CA12(771) , CA2(760) , CA4(762)

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the issuing Pharmacopoeia.For further information and support please go to the website of the issuing Pharmacopoeia.

Application

Acetazolamide USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Acetazolamide Compounded Oral Suspension
  • Acetazolamide Extended-Release Capsules
  • Acetazolamide for Injection
  • Acetazolamide Tablets
Carbonic anhydrase inhibitor; increases cerebral blood flow.

Biochem/physiol Actions

Inhibits water permeability of membranes by interacting with aquaporins

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Noam Alperin et al.
Neurology, 82(15), 1347-1351 (2014-03-19)
To assess the effects of low-dose acetazolamide treatment on volumetric MRI markers and clinical outcome in idiopathic normal-pressure hydrocephalus (iNPH). We analyzed MRI and gait measures from 8 patients with iNPH with serial MRIs from an institutional review board-approved imaging
Thomas E Kelly et al.
High altitude medicine & biology, 11(4), 319-323 (2010-12-31)
Allergies and adverse reactions to sulfonamide medications are quite common. Two distinct categories of drugs are classified as sulfonamides: antibiotics and nonantibiotics. The two groups differ in their chemical structure, use, and the rate at which adverse reactions occur. Cross-reactivity
W G Reiss et al.
The Annals of pharmacotherapy, 30(5), 514-519 (1996-05-01)
To summarize the pharmacology, pharmacokinetics, efficacy, and safety of acetazolamide and to evaluate its therapeutic role in patients with epilepsy. A computerized search of the MEDLINE (OVID) database (1966-1994) was used to identify publications regarding acetazolamide. The MEDLINE search was
David E Leaf et al.
Journal of applied physiology (Bethesda, Md. : 1985), 102(4), 1313-1322 (2006-10-07)
Acetazolamide, a potent carbonic anhydrase (CA) inhibitor, is the most commonly used and best-studied agent for the amelioration of acute mountain sickness (AMS). The actual mechanisms by which acetazolamide reduces symptoms of AMS, however, remain unclear. Traditionally, acetazolamide's efficacy has
Neil D Ritchie et al.
Journal of travel medicine, 19(5), 298-307 (2012-09-05)
Acetazolamide has been reported to be effective in the prevention of acute mountain sickness (AMS). Our aim was to conduct a systematic review of randomized, placebo-controlled trials of acetazolamide in the prevention of AMS. Studies were identified by searching the
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service