Erythromycin EP Impurity E

About Erythromycin EP Impurity E

Erythromycin EP Impurity E is a pharmacopeial impurity of Erythromycin carrying the CAS registry number 33396-29-1. The compound has the formula C37H65NO12, corresponding to a molecular weight of 715.9 g/mol. Alternative names: Erythromycin A Enol Ether and Erythromycin - Impurity E.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

This Erythromycin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Erythromycin EP Impurity E is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

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

Industries

Related to Erythromycin

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

Erythromycin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Erythromycin EP Impurity E
Catalogue No.	VQ-025597
CAS Number	33396-29-1
IUPAC name	(2R,3R,4S,5R,8R,9S,10S,11R,12R)-11-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-5-ethyl-3,4-dihydroxy-9-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-2,4,8,10,12,14-hexamethyl-6,15-dioxabicyclo[10.2.1]pentadec-1(14)-en-7-one
Molecular formula	C₃₇H₆₅NO₁₂
Molecular weight	715.9 g/mol
Exact mass	715.4507
Grade	Reference Standard
HSN code	38229090
InChIKey	JFVYXJKGJMUGRG-KJPZRSJGSA-N
SMILES	CC[C@@H]1[C@@]([C@@H]([C@H](C2=C(C[C@@](O2)([C@@H]([C@H]([C@@H]([C@H](C(=O)O1)C)O[C@H]3C[C@@]([C@H]([C@@H](O3)C)O)(C)OC)C)O[C@H]4[C@@H]([C@H](C[C@H](O4)C)N(C)C)O)C)C)C)O)(C)O
PubChem CID	83954

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	4 / 13
TPSA	166 Å²
Synonyms	Erythromycin A Enol Ether, Erythromycin - Impurity E, Erythromycin enol ether, 8,9-anhydroerythromycin A 6,9-hemiketal, EM-201, Erythromycin, 8,9-didehydro-9-deoxo-6-deoxy-6,9-epoxy-, BRL-46357ER, ME-4, EM-A enolether, ME 4, BRL 46357ER, EM 201

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, 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 Erythromycin EP Impurity E?

The CAS Registry Number of Erythromycin EP Impurity E is 33396-29-1. It is also known as Erythromycin A Enol Ether, Erythromycin - Impurity E, Erythromycin enol ether.

What is the molecular formula and molecular weight of Erythromycin EP Impurity E?

Erythromycin EP Impurity E has the molecular formula C37H65NO12 and a molecular weight of 715.9 g/mol.

What is Erythromycin EP Impurity E used for?

Erythromycin EP Impurity E is supplied as a characterised reference material related to Erythromycin. 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 Erythromycin EP Impurity E can I order?

We supply Erythromycin EP Impurity E 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 Erythromycin EP Impurity E?

Yes. Every lot of Erythromycin EP Impurity E 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 Erythromycin EP Impurity E be shipped internationally?

Yes. Erythromycin EP Impurity E 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.