Pemetrexed impurities and related standards

8 reference standards related to Pemetrexed held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

CAS numbers are listed for 8 of 8; 8 entries carry a structure drawing.

Pemetrexed — related standards
Compound	CAS No.	Catalogue No.	Formula	MW
Pemetrexed Impurity 50	1115638-47-5	RS-P063001	C22H25N5O6	455.47
Pemetrexed Impurity 63	1320346-37-9	RS-P063002	C12H12Br2O3	364.03
Pemetrexed EP Impurity D	144051-68-3	RS-P063003	C25H28N6O9	556.52
Pemetrexed Impurity 16	155405-79-1	RS-P063004	C12H13BrO3	285.13
Pemetrexed Impurity 50	155405-80-4	RS-P063005	C16H16N4O3	312.32
Pemetrexed Impurity 2	1644286-36-1	RS-P063006	C20H21N5O8	459.41
Pemetrexed Impurity 1	1644287-26-2	RS-P063007	C20H21N5O8	459.41
Pemetrexed EP Impurity A	869791-42-4	RS-P063008	C21H23N5O6	441.45

Structures

Pemetrexed Impurity 50

CAS 1115638-47-5RS-P063001
COA per lot
Pemetrexed Impurity 63

CAS 1320346-37-9RS-P063002
COA per lot
Pemetrexed EP Impurity D

CAS 144051-68-3RS-P063003
COA per lot
Pemetrexed Impurity 16

CAS 155405-79-1RS-P063004
COA per lot
Pemetrexed Impurity 50

CAS 155405-80-4RS-P063005
COA per lot
Pemetrexed Impurity 2

CAS 1644286-36-1RS-P063006
COA per lot
Pemetrexed Impurity 1

CAS 1644287-26-2RS-P063007
COA per lot
Pemetrexed EP Impurity A

CAS 869791-42-4RS-P063008
COA per lot

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to [email protected].