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Pharmacopeial Impurities (EP / USP / BP)

Clarithromycin EP Impurity E

Reference StandardAvailable on request

Buy Clarithromycin EP Impurity E (CAS 81103-14-2) from Zemixal: C39H71NO13, COA and SDS with every lot, worldwide shipping.

Pack sizes
Clarithromycin EP Impurity E chemical structure
CAS number81103-14-2
FormulaC39H71NO13
Molar mass762 g/mol
Physical formSolid
HS code38229090
InChIKeyDWRKNXHSSDFLOJ-XNLUWZQGSA-N

About Clarithromycin EP Impurity E

Clarithromycin EP Impurity E is supplied by Zemixal as a characterised reference material for Clarithromycin analysis. Key data (Reference Standard): CAS 81103-14-2, formula C39H71NO13 and molar mass 762 g/mol. It is handled as a solid.

Common uses in the lab and plant

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

Handling and storage

Hazard communication follows GHS (Warning: H302). Our SDS lists exposure controls and first-aid measures.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Clarithromycin

See every impurity, metabolite and related compound we list for this API.

Clarithromycin standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Clarithromycin EP Impurity E
Product nameClarithromycin EP Impurity E
Catalogue numberZX-020231
CAS number81103-14-2
IUPAC name(3R,4S,5S,6R,7R,9R,11R,12R,13R,14R)-6-[(2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-14-ethyl-13-hydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-7,12-dimethoxy-3,5,7,9,11,13-hexamethyl-oxacyclotetradecane-2,10-dione
Molecular formulaC39H71NO13
Molar mass762 g/mol
Exact mass761.4925
GradeReference Standard
Physical formSolid
XLogP33.7
H-bond donors / acceptors3 / 14
Topological polar surface area172 Ų
HS code38229090
InChIKeyDWRKNXHSSDFLOJ-XNLUWZQGSA-N
SMILESCC[C@@H]1[C@@]([C@@H]([C@H](C(=O)[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)OC)C)C)OC)(C)O
PubChem CID14589667
SynonymsClarithromycin - Impurity E, Clarithromycin EP Impurity E (USP), 6,11-di-o-methylerythromycin a, 11-O-Methylclarithromycin, 6,11-Di-O-Methyl ErythroMycin, Clarithromycin Impurity E, 6,11-Di-O-methylerythromycin A, 6,11-Di-O-methylerythromycin, 6-O,11-O-Dimethylerythromycin, Erythromycin, 6,11-di-O-methyl-

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H302Harmful if swallowed

Precautionary statements P264, P270, P301 + P317, P330, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Clarithromycin EP Impurity E
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Clarithromycin EP Impurity E

Which CAS number identifies Clarithromycin EP Impurity E?
Clarithromycin EP Impurity E is registered under CAS 81103-14-2. You may also see it listed as Clarithromycin - Impurity E, Clarithromycin EP Impurity E (USP), 6,11-di-o-methylerythromycin a. Our catalogue number for this item is ZX-020231.
What are the formula and molar mass of Clarithromycin EP Impurity E?
For Clarithromycin EP Impurity E, its formula is C39H71NO13 and its molar mass is 762 g/mol. InChIKey DWRKNXHSSDFLOJ-XNLUWZQGSA-N lets you match it in any structure database.
How is Clarithromycin EP Impurity E used in pharmaceutical QC?
Clarithromycin EP Impurity E is a characterised reference material linked to Clarithromycin. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Clarithromycin EP Impurity E?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Clarithromycin EP Impurity E?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Clarithromycin EP Impurity E to my country?
Yes. Because Clarithromycin EP Impurity E is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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