PHR1088

Azithromycin

Pharmaceutical Secondary Standard; Certified Reference Material

• Synonym(s): Azithromycin dihydrate, 1-Oxa-6-azacyclopentadecan-15-one, 13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10- trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylohexopyranosyl]oxy]-, dihydrate, [2R-(2R, 3S, 4R, 5R, 8R, 10R, 11R, 12S, 13S, 14R)]-, N-Methyl-11-aza-10-deoxo-10-dihydroerythromycin A, CP-62993
• Empirical Formula (Hill Notation): C₃₈H₇₂N₂O₁₂ · 2H₂O
• CAS Number: 117772-70-0
• Molecular Weight: 785.02
• MDL number: MFCD01862248
• UNSPSC Code: 41116107
• PubChem Substance ID: 329823110
• NACRES: NA.24

Properties

• grade: certified reference material; pharmaceutical secondary standard
• Quality Level: 300
• Agency: traceable to Ph. Eur. Y0000306; traceable to USP 1046056
• API family: azithromycin
• CofA: current certificate can be downloaded
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• application(s): pharmaceutical (small molecule)
• format: neat
• storage temp.: -10 to -25°C
• SMILES string: O.O.CC[C@H]1OC(=O)[C@H](C)[C@@H](O[C@H]2C[C@@](C)(OC)[C@@H](O)[C@H](C)O2)[C@H](C)[C@@H](O[C@@H]3O[C@H](C)C[C@@H]([C@H]3O)N(C)C)[C@](C)(O)C[C@@H](C)CN(C)[C@H](C)[C@@H](O)[C@]1(C)O
• InChI: 1S/C38H72N2O12.2H2O/c1-15-27-38(10,46)31(42)24(6)40(13)19-20(2)17-36(8,45)33(52-35-29(41)26(39(11)12)16-21(3)48-35)22(4)30(23(5)34(44)50-27)51-28-18-37(9,47-14)32(43)25(7)49-28;;/h20-33,35,41-43,45-46H,15-19H2,1-14H3;2*1H2/t20-,21-,22+,23-,24-,25+,26+,27-,28+,29-,30+,31-,32+,33-,35+,36-,37-,38-;;/m1../s1
• InChI key: SRMPHJKQVUDLQE-KUJJYQHYSA-N

Description

General description

Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

Application

Azithromycin may be used as a pharmaceutical reference standard for the determination of the analyte in plasma/serum samples and pharmaceutical formulations by various chromatography techniques.

These Secondary Standards are qualified as Certified Reference Materials. These are suitable for use in several analytical applications including but not limited to pharma release testing, pharma method development for qualitative and quantitative analyses, food and beverage quality control testing, and other calibration requirements.

Biochem/physiol Actions

Azithromycin dihydrate is a macrolide antibiotic, azalide subclass. It binds to the 50S subunit of the 70S bacterial ribosomes and inhibits RNA-dependent protein synthesis in bacterial cells. Azithromycin also has anti-immunomodulatory/anti-inflammatory properties, which make it useful in treating cystic fibrosis.

Analysis Note

These secondary standards offer multi-traceability to the USP, EP (PhEur) and BP primary standards, where they are available.

Other Notes

This Certified Reference Material (CRM) is produced and certified in accordance with ISO 17034 and ISO/IEC 17025. All information regarding the use of this CRM can be found on the certificate of analysis.

Footnote

To see an example of a Certificate of Analysis for this material enter LRAB3758 in the slot below. This is an example certificate only and may not be the lot that you receive.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable