Pemetrexed Diethyl Ester (PTSA Salt)

Name: Pemetrexed Diethyl Ester (PTSA Salt)
Brand: Vaqora Chemicals
SKU: VQ-013707

About Pemetrexed Diethyl Ester (PTSA Salt)

Pemetrexed Diethyl Ester (PTSA Salt) (CAS 165049-28-5) is a process intermediate or related compound of Pemetrexed offered by Vaqora Chemicals at a purity of 95.19%. Its molecular formula is C31H37N5O9S and its molecular weight is 655.7 g/mol. It is also known as benzamido) or PeMetrexed disodiuM INT-5.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

Process chemists and analysts use it when developing synthetic routes to Pemetrexed, tracking process-related impurities and validating analytical methods. 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. Stock is available for quick dispatch.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Pemetrexed

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

Pemetrexed impurities

Specifications & identifiers

Chemical identifiers
Product name	Pemetrexed Diethyl Ester (PTSA Salt)
Catalogue No.	VQ-013707
CAS Number	165049-28-5
Other CAS	146943-43-3
IUPAC name	diethyl (2S)-2-[[4-[2-(2-amino-4-oxo-3,7-dihydropyrrolo[2,3-d]pyrimidin-5-yl)ethyl]benzoyl]amino]pentanedioate;4-methylbenzenesulfonic acid
Molecular formula	C₃₁H₃₇N₅O₉S
Molecular weight	655.7 g/mol
Exact mass	655.2312
Grade	Reference Standard
Purity / assay	95.19%
HSN code	2933
InChIKey	UANBXQTVHOIGGQ-LMOVPXPDSA-N
SMILES	CCOC(=O)CC[C@@H](C(=O)OCC)NC(=O)C1=CC=C(C=C1)CCC2=CNC3=C2C(=O)NC(=N3)N.CC1=CC=C(C=C1)S(=O)(=O)O
PubChem CID	135741210

Physical properties
Physical form	Solid
H-bond donors / acceptors	5 / 10
TPSA	228 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 Diethyl Ester (PTSA Salt)?

The CAS Registry Number of Pemetrexed Diethyl Ester (PTSA Salt) is 165049-28-5. It is also known as benzamido), PeMetrexed disodiuM INT-5, Peimei p-Toluenesulfonic Acid.

What is the molecular formula and molecular weight of Pemetrexed Diethyl Ester (PTSA Salt)?

Pemetrexed Diethyl Ester (PTSA Salt) has the molecular formula C31H37N5O9S and a molecular weight of 655.7 g/mol.

What is Pemetrexed Diethyl Ester (PTSA Salt) used for?

Pemetrexed Diethyl Ester (PTSA Salt) 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 Diethyl Ester (PTSA Salt) can I order?

We supply Pemetrexed Diethyl Ester (PTSA Salt) in Reference Standard (95.19%) grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Pemetrexed Diethyl Ester (PTSA Salt)?

Yes. Every lot of Pemetrexed Diethyl Ester (PTSA Salt) 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 Diethyl Ester (PTSA Salt) be shipped internationally?

Yes. We export Pemetrexed Diethyl Ester (PTSA Salt) worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.