Azithromycin EP Impurity B

Name: Azithromycin EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-020872

About Azithromycin EP Impurity B

Vaqora Chemicals supplies Azithromycin EP Impurity B, a pharmacopeial impurity of Azithromycin registered under CAS number 307974-61-4. With the molecular formula C38H72N2O11, it has a molar mass of 733.0 g/mol. It is also known as Azithromycin - Impurity B or Azithromycin B.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

This Azithromycin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Azithromycin EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Azithromycin

View every impurity, metabolite and intermediate we list for Azithromycin.

Azithromycin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Azithromycin EP Impurity B
Catalogue No.	VQ-020872
CAS Number	307974-61-4
IUPAC name	(2R,3R,4S,5R,8R,10R,11R,12S,13S,14R)-11-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-2-ethyl-4,10-dihydroxy-13-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one
Molecular formula	C₃₈H₇₂N₂O₁₁
Molecular weight	733 g/mol
Exact mass	732.5136
Grade	Reference Standard
HSN code	38229090
InChIKey	JBYIGHZCRVMHAK-VINPOOLWSA-N
SMILES	CC[C@@H]1[C@@H]([C@@H]([C@H](N(C[C@@H](C[C@@]([C@@H]([C@H]([C@@H]([C@H](C(=O)O1)C)O[C@H]2C[C@@]([C@H]([C@@H](O2)C)O)(C)OC)C)O[C@H]3[C@@H]([C@H](C[C@H](O3)C)N(C)C)O)(C)O)C)C)C)O)C
PubChem CID	71587690

Physical properties
Physical form	Solid
LogP (XLogP3)	5.2
H-bond donors / acceptors	4 / 13
TPSA	160 Å²
Synonyms	Azithromycin - Impurity B, Azithromycin B, Azithromycin Impurity B, Azithromycin Impurity 2, 3-deoxyazithromycin (azithromycin B)

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H317May cause an allergic skin reaction
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

Precautionary statements: P233, P260, P261, P271, P272, P280, P284, P302 + P352, P304 + P340, P321, P333 + P317, P342 + P316, P362 + P364, P403, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Azithromycin EP Impurity B?

The CAS Registry Number of Azithromycin EP Impurity B is 307974-61-4. It is also known as Azithromycin - Impurity B, Azithromycin B, Azithromycin Impurity B.

What is the molecular formula and molecular weight of Azithromycin EP Impurity B?

Azithromycin EP Impurity B has the molecular formula C38H72N2O11 and a molecular weight of 733 g/mol.

What is Azithromycin EP Impurity B used for?

Azithromycin EP Impurity B is supplied as a characterised reference material related to Azithromycin. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Azithromycin EP Impurity B can I order?

We supply Azithromycin EP Impurity B in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Azithromycin EP Impurity B?

Yes. Every lot of Azithromycin EP Impurity B is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Azithromycin EP Impurity B be shipped internationally?

Yes. Azithromycin EP Impurity B is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.