Products
Azithromycin

Azithromycin

CAS:83905-01-5 EINECS:617-500-5
Tel:+8618092446649
Product Introduction

Introduction

Name: Azithromycin
C.A.S NO. : 83905-01-5
Assay (%)(HPLC, Basis on drying):99%

Molecular formula: C38H72N2O12  
Molecular weight : 748.98
Characteristic: White crystalline powder
Melting point: 113-115°C
Solubility: Almost insoluble in water, soluble in anhydrous ethanol and dichloromethane.




Application :

1.Azithromycin is used to treat or prevent certain bacterial infections, most often those causing middle ear i nfections, strep throat, pneumonia, typhoid, and sinusitis;
2.It has been used primarily to prevent bacterial infections in infants and those with weaker immune system3.It is also effective against certain sexually transmitted infections, 

such as non- gonococcal urethritis, chlamydia, and cervicitis;
4.Azithromycin is used for acute pharyngitis, acute tonsillitis caused by Streptococcus pyogenes;
5.Azithromycin is used for acute throat and tonsillitis which are caused by streptococcus pyogenes, otitis;
6.Azithromycin can treatment of media sinusitis acute bronchitis skin soft tissue infection which are caused by sensitive bacteria;
7.Azithromycin is also used for pneumonia urethritis cervicitis and so on.



ITEMSSPECIFICATIONSRESULTS
AppearanceA White or almost white crystalline powderConforms
SolubilityPractically insoluble in water,freely soluble in
anhydrous ethanol and in methylene chloride
Conforms
IdentificationIRConforms

HPLC
CrystallinityMeet the requirementsConforms
PH9.0 ~ 11.09.9
Related substancesDesosaminylazithromycin ≤0.3%DL
N-demethylazithromycin ≤0.7%0.001
Any other single impurity ≤1.0%Conforms
Total impurities≤3.0 %0.015
Residual solventsAcetone ≤0.5%0.003
Loss on drying4.0 % ~ 5.0%0.045
Residue on Ignition≤0.3%0.0004
Melting point50 °C ~ 60 °C50 °C ~ 60 °C
Sulphate ash≤0.1%0.0005
Heavy metals≤ 25 ppmNMT25 ppm
Assay
( calculated on the anhydrous basis)
945 ug ~ 103 ug of azithromycin per mg982 ug/ mg