28-Epirapamycin

Name: 28-Epirapamycin
Brand: Vaqora Chemicals
SKU: VQ-028048

About 28-Epirapamycin

28-Epirapamycin (CAS 253431-35-5) is an impurity of Sirolimus offered by Vaqora Chemicals. The compound has the formula C51H79NO13, corresponding to a molecular weight of 914.2 g/mol.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

This Sirolimus impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. A Safety Data Sheet (SDS) and technical specifications are available on request.

Typical applications

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

Industries

Related to Sirolimus

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

Sirolimus impurities

Specifications & identifiers

Chemical identifiers
Product name	28-Epirapamycin
Catalogue No.	VQ-028048
CAS Number	253431-35-5
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 formula	C₅₁H₇₉NO₁₃
Molecular weight	914.2 g/mol
Exact mass	913.5551
Grade	Reference Standard
HSN code	38229090
InChIKey	QFJCIRLUMZQUOT-OGLZFCPISA-N
SMILES	C[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 CID	131668123

Physical properties
Physical form	Solid
LogP (XLogP3)	6
H-bond donors / acceptors	3 / 13
TPSA	195 Å²

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 28-Epirapamycin?

The CAS Registry Number of 28-Epirapamycin is 253431-35-5.

What is the molecular formula and molecular weight of 28-Epirapamycin?

28-Epirapamycin has the molecular formula C51H79NO13 and a molecular weight of 914.2 g/mol.

What is 28-Epirapamycin used for?

28-Epirapamycin is supplied as a characterised reference material related to Sirolimus. 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 28-Epirapamycin can I order?

We supply 28-Epirapamycin 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 28-Epirapamycin?

Yes. Every lot of 28-Epirapamycin 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 28-Epirapamycin be shipped internationally?

Yes. We export 28-Epirapamycin worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.