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C9742

Sigma-Aldrich

Clarithromycin

≥95% (HPLC)

Synonym(s):

6-O-methyl erythromycin

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About This Item

Empirical Formula (Hill Notation):
C38H69NO13
CAS Number:
81103-11-9
Molecular Weight:
747.95
MDL number:
MFCD00865140
UNSPSC Code:
51101500
PubChem Substance ID:
329775082
NACRES:
NA.76

Quality Level

200

Assay

≥95% (HPLC)

form

powder

antibiotic activity spectrum

Gram-negative bacteria
Gram-positive bacteria

Mode of action

protein synthesis | interferes

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

Chemical structure: macrolide

Application

Clarithromycin is a semisynthetic macrolide antibiotic that is derived from erythromycin. Clarithromycin may be bacteriostatic or bactericidal depending on the organism and drug concentration . Clarithromycin may be used to attenuate cardiac transplantation rejection via matrix metalloproteinase suppression. Clarithromycin has been used to study inflammatory markers in chronic obstructive pulmonary disease (COPD). It is used to study bacterial protein synthesis and peptide translation.

Biochem/physiol Actions

Clarithromycin inhibits bacterial protein synthesis by binding to the bacterial 50S ribosomal subunit. Binding inhibits peptidyl transferase activity and interferes with amino acid translocation. Clarithromycin is first metabolized to 14-OH clarithromycin, which is active and works synergistically with its parent compound. Clarithromycin penetrates the bacteria cell wall and reversibly binds to domain V of the 23S ribosomal RNA of the 50S subunit of the bacterial ribosome, blocking translocation of aminoacyl transfer-RNA and polypeptide synthesis. Clarithromycin also inhibits the hepatic microsomal CYP3A4 isoenzyme and P-glycoprotein, an energy-dependent drug efflux pump.
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.

Preparation Note

Practically insoluble in water, soluble in acetone and methylene chloride, slightly soluble in methanol.

Other Notes

Keep container tightly closed in a dry and well-ventilated place. Keep in a dry place.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H302

Precautionary Statements

P264 - P270 - P301 + P312 - P501

Hazard Classifications

Acute Tox. 4 Oral

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Masahito Ogawa et al.
Journal of the American College of Cardiology, 51(20), 1977-1985 (2008-05-17)
Clarithromycin (CAM), a major macrolide antibiotic, has many biological functions, including matrix metalloproteinases (MMPs) regulation. However, little is known about the effect of CAM in heart transplantation via MMP-9. The purpose of this study was to clarify the role of
Barbara Gierlikowska et al.
Frontiers in pharmacology, 11, 1339-1339 (2020-10-06)
Phagocytosis is a crucial element of innate immune defense involved in bacterial killing. The aim of our study was to evaluate the influence of alantolactone on phagocytosis and cytokines release by THP1-derived macrophages. We assessed whether antimicrobial compound alantolactone (a
Ilknur Basyigit et al.
The Annals of pharmacotherapy, 38(9), 1400-1405 (2004-07-15)
Clarithromycin is an antimicrobial agent that can be used for treatment of chronic obstructive pulmonary disease (COPD) exacerbations with bronchodilator therapy. However, it has also been shown that clarithromycin has antiinflammatory effects by the inhibition of cytokine production. To evaluate
Stuart Schembri et al.
BMJ (Clinical research ed.), 346, f1235-f1235 (2013-03-26)
To study the association of clarithromycin with cardiovascular events in the setting of acute exacerbations of chronic obstructive pulmonary disease and community acquired pneumonia. Analysis of two prospectively collected datasets. Chronic obstructive pulmonary disease dataset including patients admitted to one
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
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