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Key Documents

1134390

USP

Clarithromycin Identity

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Clarithromycin

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About This Item

Empirical Formula (Hill Notation):
C38H69NO13
CAS Number:
Molecular Weight:
747.95
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

clarithromycin

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

O[C@@H]([C@@](O)(C)[C@@H](CC)OC([C@H](C)[C@H]1O[C@@H]2O[C@@H](C)[C@H](O)[C@](C)(OC)C2)=O)[C@@H](C)C([C@H](C)C[C@@](C)(OC)[C@H](O[C@@H]3O[C@H](C)C[C@H](N(C)C)[C@H]3O)[C@H]1C)=O

InChI

1S/C38H69NO13/c1-15-26-38(10,45)31(42)21(4)28(40)19(2)17-37(9,47-14)33(52-35-29(41)25(39(11)12)16-20(3)48-35)22(5)30(23(6)34(44)50-26)51-27-18-36(8,46-13)32(43)24(7)49-27/h19-27,29-33,35,41-43,45H,15-18H2,1-14H3/t19-,20-,21+,22+,23-,24+,25+,26-,27+,29-,30+,31-,32+,33-,35+,36-,37-,38-/m1/s1

InChI key

AGOYDEPGAOXOCK-KCBOHYOISA-N

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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

Clarithromycin Identity 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:
  • Clarithromycin
  • Clarithromycin Tablets
  • Clarithromycin Extended-Release Tablets

Biochem/physiol Actions

Clarithromycin is a macrolide antibiotic that interferes with bacterial protein synthesis. Clarithromycin is an acid-stable version of erythromycin and is particularly effective against Gram-negative bacteria. It has a short half-life, however its metabolite, 14-hydroxy clarithromycin is nearly twice as active as clarithromycin against certain bacteria.

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.

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’.

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Keith A Rodvold et al.
Antimicrobial agents and chemotherapy, 47(8), 2450-2457 (2003-07-25)
The purpose of this study was to compare the concentrations of levofloxacin and azithromycin in steady-state plasma, epithelial lining fluid (ELF), and alveolar macrophage (AM) after intravenous administration. Thirty-six healthy, nonsmoking adult subjects were randomized to either intravenous levofloxacin (500
Stig Lyngbæk et al.
European journal of preventive cardiology, 21(10), 1275-1284 (2013-06-01)
Low prevalence of detectable cardiac troponin in healthy people and low-risk patients previously curtailed its use. With a new high-sensitive cardiac troponin assay (hs-cTnT), concentrations below conventional detection may have prognostic value, notably in combination with N-terminal pro-B-type natriuretic peptide
Chung-Su Park et al.
The American journal of gastroenterology, 109(10), 1595-1602 (2014-08-06)
Helicobacter pylori eradication rates with clarithromycin-based triple therapy are declining, and an alternative strategy is needed urgently. We sought to compare the efficacy of pretreatment antimicrobial susceptibility-guided vs. clarithromycin-based triple therapy for H. pylori eradication in a region with high
Pedro Gutiérrez-Castrellón et al.
Revista de investigacion clinica; organo del Hospital de Enfermedades de la Nutricion, 64(2), 126-135 (2012-09-21)
Upper respiratory infections (URIs) are one of the most common infectious diseases in children. Macrolides had been considered one of the best options of treatment. Instead of clarithromycin is one of the macrolides most used, meta-analysis about the safety and
Evangelos J Giamarellos-Bourboulis
Current topics in medicinal chemistry, 10(14), 1470-1475 (2010-06-12)
Macrolides currently play a major role in the management of severe infections. Evidence derives from several retrospective studies have shown a significant reduction of mortality from community-acquired pneumonia upon treatment with a macrolide. Apart from other explanations, their effect is

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