Pemetrexed Impurity 25 (Mixture of Isomers) 1417656-72-4

About Pemetrexed Impurity 25 (Mixture of Isomers)

Pemetrexed Impurity 25 (Mixture of Isomers) is an impurity of Pemetrexed carrying the CAS registry number 1417656-72-4, specified at 93.36% purity. With the molecular formula C20H23N5O9, it has a molar mass of 477.4 g/mol.

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. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Pemetrexed impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from 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. Stock is available for quick dispatch.

Typical applications

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

Industries

Related to Pemetrexed

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

Pemetrexed impurities

Specifications & identifiers

Chemical identifiers
Product name	Pemetrexed Impurity 25 (Mixture of Isomers)
Catalogue No.	VQ-005505
CAS Number	1417656-72-4
IUPAC name	(2R)-2-[[4-[2-(2-amino-5,6-dihydroxy-1-oxido-4-oxo-6,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-1-ium-5-yl)ethyl]benzoyl]amino]pentanedioic acid
Molecular formula	C₂₀H₂₃N₅O₉
Molecular weight	477.4 g/mol
Exact mass	477.1496
Grade	Reference Standard
Purity / assay	93.36%
HSN code	38229090
InChIKey	NPAUOPVSQZARJG-PHINPVJKSA-N
SMILES	C1=CC(=CC=C1CCC2(C(NC3=C2C(=O)NC(=[N+]3[O-])N)O)O)C(=O)N[C@H](CCC(=O)O)C(=O)O
PubChem CID	169490899

Physical properties
Physical form	Solid
LogP (XLogP3)	-3
H-bond donors / acceptors	8 / 10
TPSA	240 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 Pemetrexed Impurity 25 (Mixture of Isomers)?

The CAS Registry Number of Pemetrexed Impurity 25 (Mixture of Isomers) is 1417656-72-4.

What is the molecular formula and molecular weight of Pemetrexed Impurity 25 (Mixture of Isomers)?

Pemetrexed Impurity 25 (Mixture of Isomers) has the molecular formula C20H23N5O9 and a molecular weight of 477.4 g/mol. Its IUPAC name is (2R)-2-[[4-[2-(2-amino-5,6-dihydroxy-1-oxido-4-oxo-6,7-dihydro-3H-pyrrolo[2,3-d]pyrimidin-1-ium-5-yl)ethyl]benzoyl]amino]pentanedioic acid.

What is Pemetrexed Impurity 25 (Mixture of Isomers) used for?

Pemetrexed Impurity 25 (Mixture of Isomers) is supplied as a characterised reference material related to Pemetrexed. 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 Pemetrexed Impurity 25 (Mixture of Isomers) can I order?

We supply Pemetrexed Impurity 25 (Mixture of Isomers) in Reference Standard (93.36%) 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 Pemetrexed Impurity 25 (Mixture of Isomers)?

Yes. Every lot of Pemetrexed Impurity 25 (Mixture of Isomers) 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 Pemetrexed Impurity 25 (Mixture of Isomers) be shipped internationally?

Yes. We export Pemetrexed Impurity 25 (Mixture of Isomers) worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.