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API Impurities

28-Epirapamycin

Reference StandardAvailable on request

Buy 28-Epirapamycin (CAS 253431-35-5) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
28-Epirapamycin chemical structure
CAS number253431-35-5
FormulaC51H79NO13
Molar mass914.2 g/mol
Physical formSolid
HS code38229090
InChIKeyQFJCIRLUMZQUOT-OGLZFCPISA-N

About 28-Epirapamycin

28-Epirapamycin belongs to the Sirolimus reference-standard family in the Zemixal catalogue. For your records (Reference Standard), the material is defined by CAS 253431-35-5, formula C51H79NO13 and molar mass 914.2 g/mol. It is handled as a solid.

Common uses in the lab and plant

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Sirolimus

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

Sirolimus standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of 28-Epirapamycin
Product name28-Epirapamycin
Catalogue numberZX-026952
CAS number253431-35-5
IUPAC name(1R,9S,12S,15R,18S,19R,21R,23S,30S,32S,35R)-1,18-dihydroxy-12-[(2R)-1-[(1S,3R,4R)-4-hydroxy-3-methoxycyclohexyl]propan-2-yl]-19,30-dimethoxy-15,17,21,23,29,35-hexamethyl-11,36-dioxa-4-azatricyclo[30.3.1.04,9]hexatriaconta-16,24,26,28-tetraene-2,3,10,14,20-pentone
Molecular formulaC51H79NO13
Molar mass914.2 g/mol
Exact mass913.5551
GradeReference Standard
Physical formSolid
XLogP36
H-bond donors / acceptors3 / 13
Topological polar surface area195 Ų
HS code38229090
InChIKeyQFJCIRLUMZQUOT-OGLZFCPISA-N
SMILESC[C@@H]1CC[C@H]2C[C@@H](C(=CC=CC=C[C@H](C[C@H](C(=O)[C@@H]([C@H](C(=C[C@H](C(=O)C[C@H](OC(=O)[C@@H]3CCCCN3C(=O)C(=O)[C@@]1(O2)O)[C@H](C)C[C@@H]4CC[C@H]([C@@H](C4)OC)O)C)C)O)OC)C)C)C)OC
PubChem CID131668123

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of 28-Epirapamycin
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 28-Epirapamycin

Which CAS number identifies 28-Epirapamycin?
28-Epirapamycin is registered under CAS 253431-35-5. Our catalogue number for this item is ZX-026952.
What are the formula and molar mass of 28-Epirapamycin?
For 28-Epirapamycin, its formula is C51H79NO13 and its molar mass is 914.2 g/mol. InChIKey QFJCIRLUMZQUOT-OGLZFCPISA-N lets you match it in any structure database.
How is 28-Epirapamycin used in pharmaceutical QC?
28-Epirapamycin is a characterised reference material linked to Sirolimus. 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 28-Epirapamycin?
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 28-Epirapamycin?
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 28-Epirapamycin to my country?
Yes. 28-Epirapamycin ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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