Pure Azithromycin Dihydrate Powder USP BP EP CAS 117772-70-0

Product Name: Azithromycin

Synonyms:  Azithromycin Dihydrate, Azithromycin Powder, Azithromycin Micronized

CAS Number: 117772-70-0

Characteristics: White powder.

Molecular Formula: C38H76N2O14

Structure Formula:

Azithromycin CAS 117772-70-0 structure formula

Package: 25Kgs/Fiber Drum

Assay:  945-1030μg /mg

Formula: C38H72N2O12·2H2O


Azithromycin Dihydrate belongs to the class of drugs known as macrolide antibiotics. It will kill bacteria or prevent their growth. However, Azithromycin will not work for colds, flu, or other virus infections. Azithromycin powder or injection may be used for other problems as determined by your doctor. Similar in structure to erythromycin. azithromycin reaches higher intracellular concentrations than erythromycin, increasing its efficacy and duration of action.

Mechanism of Action:

Azithromycin works by interfering with bacterial protein synthesis, thus preventing them from growing.

Like other macrolide antibiotics, Azithromycin powder raw material inhibits bacterial protein synthesis by binding to the 50S ribosomal subunit of the bacterial 70S ribosome. Azithromycin API will inhibit peptidyl transferase activity and interfere with amino acid translocation during the process of translation. Its effects may be bacteriostatic or bactericidal depending of the organism and the drug concentration. Its long half life, which enables once daily dosing and shorter administration durations, is a property distinct from other macrolides.

Fengchen Group is a leading supplier of Azithromycin Dihydrate Powder API from China. We specialize in wholesale and bulk amounts, ensuring all our clients have the right supplier of Triethylenediamine powder when they need it. When you are going to buy or purchase Azithromycin Dihydrate Raw Material, please turn to Fengchen Group.

Usage: Azithromycin (Azithromycin Dihydrate, Azithromycin Powder) is mainly used to fight bacterial infections. It is a kind of antibiotic. Azithromycin can be made into oral or other forms of pharmaceutical preparations.

Azithromycin is used to treat a vast variety of bacterial infections, especially in those with weak immune systems patients. For example, children.

Azithromycin raw material API is used to treat many different types of infections caused by bacteria, such as respiratory infections, skin infections,ear infections, and sexually transmitted diseases.

Azithromycin Tablets are a macrolide antibacterial drug indicated for the treatment of patients with mild to moderate infections caused by susceptible strains of the designated microorganisms in the specific conditions listed below.


You should not use Azithromycin if you have ever had jaundice or liver problems when you have previously taken this medicine.

Please do careful before using Azithromycin Dihydrate, Azithromycin Powder liver or kidney disease, a history of Long QT syndrome, a heart rhythm disorder.

Side Effects:

Upon taking Azithromycin, a minority of individuals are susceptible to nausea, diarrhea or vomiting.

Name of Product Azithromycin
Testing   Item Standard Result
Appearance A white or almost white crystalline   power, odorless and bitter Complies

1.        IR

2.        HPLC

1.        Conforms   to the reference spectrum

2.        Similar   in retention time to the principle peak in the chromatogram obtained with the   reference solution




Crystalline Should conforms to requirements Complies
Specific optical rotation -45°~    -49° -47°
Water 4.0%-5.0% 4.3%
Residue on ignition ≤0.3% 0.02%
Residue solvents 1.Methylene chloride ≤0.06%

2.Acetone ≤0.5%

1. Not detected

2. 0.1%

Heavy metals ≤0.0025% <0.0025%
PH 9.0-11.0 9.9
Assay (Azithromycin) 945-1030μg /mg 962μg /mg
Supplier Elite Scientific & Meditech Co

Related products

Macrolides: Azithromycin, clarithromycin, roxithromycin
Quinolones: Ciprofloxacin hydrochloride, ciprofloxacin lactate, ciprofloxacin, ciprofloxacin mesylate, moxifloxacin
Special APIs: Azrendipine, fudosten, mitiglinide, desoxyfluridine, solifenacin, vildagliptin
Veterinary APIs: Ciprofloxacin hydrochloride, enrofloxacin, marbofloxacin, diclazuril, ciprofloxacin
Key pharmaceutical intermediates: Dihydrohomoerythromycin, erythromycin oxime, cyclopropanecarboxylic acid