Methotrexate

Buy high quality Methotrexate Impurities from Chemicea Pharma. Chemicea Pharma is one of the leading manufacturer and exporter of Methotrexate impurities. We synthesize Methotrexate Degradation Impurities, Methotrexate Process Impurities, Methotrexate Potential Impurities, Methotrexate USP Related Compound, Methotrexate N-Nitroso impurities, Methotrexate nitrosamine impurities etc.

Pharmaceutical Reference Standards

Methotrexate

CAT. No.	CP-M12000
CAS. No.	59-05-2
Mol. F.	C20H22N8O5
Mol. Wt.	454.45
Stock Status:	Custom Synthesis

Rel. Cas No: 6745-93-3 (hydrate salt)

Methotrexate EP Impurity A

CAT. No.	CP-M12001
CAS. No.	945-24-4
Mol. F.	C7H8N6O
Mol. Wt.	192.18
Stock Status:	In Stock

Rel. Cas No: 73978-41-3 (HCl salt)

Methotrexate EP Impurity B

CAT. No.	CP-M12002
CAS. No.	54-62-6
Mol. F.	C19H20N8O5
Mol. Wt.	440.42
Stock Status:	In Stock

Methotrexate EP Impurity D

CAT. No.	CP-M12004
CAS. No.	5623-18-7
Mol. F.	C15H14N6O3
Mol. Wt.	326.3
Stock Status:	Custom Synthesis

Methotrexate EP Impurity E

CAT. No.	CP-M12005
CAS. No.	19741-14-1
Mol. F.	C15H15N7O2
Mol. Wt.	325.33
Stock Status:	In Stock

Methotrexate EP Impurity F

CAT. No.	CP-M12006
CAS. No.	51865-79-3
Mol. F.	C20H22N8O5
Mol. Wt.	454.45
Stock Status:	Custom Synthesis

Rel. Cas No: 206557-07-5 (H2O salt)

Methotrexate EP Impurity G

CAT. No.	CP-M12007
CAS. No.	2519848-42-9
Mol. F.	C28H29N9O6
Mol. Wt.	589.61
Stock Status:	Custom Synthesis

Methotrexate EP Impurity H

CAT. No.	CP-M12008
CAS. No.	67022-39-3
Mol. F.	C21H24N8O5
Mol. Wt.	468.5
Stock Status:	Custom Synthesis

Methotrexate EP Impurity L

CAT. No.	CP-M12009
CAS. No.	52980-68-4
Mol. F.	C13H16N2O5
Mol. Wt.	280.28
Stock Status:	Custom Synthesis

Methotrexate EP Impurity K

CAT. No.	CP-M12011
CAS. No.	4271-30-1
Mol. F.	C12H14N2O5
Mol. Wt.	266.25
Stock Status:	In Stock

N-Nitroso Methotrexate EP Impurity L

CAT. No.	CP-M12014
CAS. No.	NA
Mol. F.	C13H15N3O6
Mol. Wt.	309.28
Stock Status:	Custom Synthesis

N-Nitroso Methotrexate EP Impurity B

CAT. No.	CP-M12015
CAS. No.	NA
Mol. F.	C19H19N9O6
Mol. Wt.	469.41
Stock Status:	Custom Synthesis

S-methylaminobenzoyl glutamicester

CAT. No.	CP-M12016
CAS. No.	2378-95-2
Mol. F.	C17H24N2O5
Mol. Wt.	336.39
Stock Status:	Custom Synthesis

Diethyl N-(3-Methylaminobenzoyl)-L-glutamate

CAT. No.	CP-M12017
CAS. No.	NA
Mol. F.	C17H24N2O5
Mol. Wt.	336.39
Stock Status:	In Stock

N-Nitroso Methotrexate EP Impurity F

CAT. No.	CP-M12018
CAS. No.	NA
Mol. F.	C20H21N9O6
Mol. Wt.	483.44
Stock Status:	Please Enquire

N,N-Dinitroso Methotrexate EP Impurity L

CAT. No.	CP-M12019
CAS. No.	NA
Mol. F.	C13H14N4O7
Mol. Wt.	338.28
Stock Status:	Please Enquire

N-Nitroso Methotrexate

CAT. No.	CP-M12020
CAS. No.	NA
Mol. F.	C20H21N9O6
Mol. Wt.	483.44
Stock Status:	Please Enquire

N-Nitroso Methotrexate Impurity 1

CAT. No.	CP-M12021
CAS. No.	NA
Mol. F.	C21H21N9O6 : 2(Na)
Mol. Wt.	495.46 : 2(23.0)
Stock Status:	Please Enquire

N-Nitroso Methotrexate Impurity 2

CAT. No.	CP-M12022
CAS. No.	NA
Mol. F.	C20H19N9O7
Mol. Wt.	497.43
Stock Status:	Custom Synthesis

N-Nitroso Methotrexate Impurity 3

CAT. No.	CP-M12023
CAS. No.	NA
Mol. F.	C17H23N3O6
Mol. Wt.	365.39
Stock Status:	Custom Synthesis

N-Nitroso Methotrexate Impurity 4

CAT. No.	CP-M12024
CAS. No.	NA
Mol. F.	C17H23N3O6
Mol. Wt.	365.39
Stock Status:	Please Enquire

N-Nitroso Methotrexate Impurity 5

CAT. No.	CP-M12025
CAS. No.	NA
Mol. F.	C17H22N4O7
Mol. Wt.	394.38
Stock Status:	Please Enquire

N-Nitroso Methotrexate Diethyl Ester

CAT. No.	CP-M12026
CAS. No.	NA
Mol. F.	C24H29N9O6
Mol. Wt.	539.55
Stock Status:	Please Enquire

N-Nitroso S-Methylaminobenzoyl Glutamicester

CAT. No.	CP-M12027
CAS. No.	NA
Mol. F.	C17H23N3O6
Mol. Wt.	365.39
Stock Status:	Custom Synthesis

Methotrexate Impurity 1

CAT. No.	CP-M12028
CAS. No.	1029980-84-4
Mol. F.	C17H24N2O5
Mol. Wt.	336.39
Stock Status:	In Stock

Methotrexate EP Impurity I

CAT. No.	CP-M12029
CAS. No.	66147-29-3
Mol. F.	C21H24N8O5
Mol. Wt.	468.47
Stock Status:	Custom Synthesis

Methotrexate EP Impurity J

CAT. No.	CP-M12030
CAS. No.	34378-65-9
Mol. F.	C22H26N8O5
Mol. Wt.	482.5
Stock Status:	Custom Synthesis

7-Hydroxy Methotrexate

CAT. No.	CP-M12031
CAS. No.	5939-37-7
Mol. F.	C20H22N8O6
Mol. Wt.	470.45
Stock Status:	Custom Synthesis

Methotrexate Dimethylamide

CAT. No.	CP-M12032
CAS. No.	71074-44-7
Mol. F.	C22H27N9O4
Mol. Wt.	481.52
Stock Status:	Custom Synthesis

6-Methyl-2,4-pteridinediamine

CAT. No.	CP-M12033
CAS. No.	708-74-7
Mol. F.	C7H8N6
Mol. Wt.	176.18
Stock Status:	Custom Synthesis

N-(4-chlorobenzoyl)-L-glutamic acid

CAT. No.	CP-M12034
CAS. No.	57444-70-9
Mol. F.	C12H12ClNO5
Mol. Wt.	285.68
Stock Status:	Custom Synthesis

Methotrexate Impurity 8

CAT. No.	CP-M12035
CAS. No.	909874-43-7
Mol. F.	C18H26N2O5
Mol. Wt.	350.18
Stock Status:	In Stock

N-(4-hydroxybenzoyl)-L-Glutamic acid

CAT. No.	CP-M12036
CAS. No.	119843-02-6
Mol. F.	C12H13NO6
Mol. Wt.	267.24
Stock Status:	Custom Synthesis

Methotrexate Impurity 19

CAT. No.	CP-M12037
CAS. No.	NA
Mol. F.	C23H28N8O5
Mol. Wt.	496.53
Stock Status:	Custom Synthesis

Methotrexate Impurity 18

CAT. No.	CP-M12038
CAS. No.	NA
Mol. F.	C23H28N8O5
Mol. Wt.	496.53
Stock Status:	Custom Synthesis

Methotrexate Dihydrate

CAT. No.	CP-M12039
CAS. No.	1212284-68-8
Mol. F.	C20H22N8O5 : 2(H2O)
Mol. Wt.	454.45 : 2(18.02)
Stock Status:	Custom Synthesis

Rel. Cas No: 59-05-2 (free base)

Methotrexate EP Impurity C

CAT. No.	CP-M12041
CAS. No.	2410-93-7
Mol. F.	C20H21N7O6
Mol. Wt.	455.43
Stock Status:	Custom Synthesis

2,4-Diaminopteridine

CAT. No.	CP-M12042
CAS. No.	1127-93-1
Mol. F.	C6H6N6
Mol. Wt.	162.16
Stock Status:	Custom Synthesis

Methotrexate Impurity 2

CAT. No.	CP-M12043
CAS. No.	51865-66-8
Mol. F.	C17H24N2O5
Mol. Wt.	336.39
Stock Status:	Custom Synthesis

(+/-)Amethopterin

CAT. No.	CP-M12044
CAS. No.	60388-53-6
Mol. F.	C20H22N8O5
Mol. Wt.	454.45
Stock Status:	Custom Synthesis

Methotrexate Impurity 4

CAT. No.	CP-M12045
CAS. No.	52030-86-1
Mol. F.	C13H16N2O5
Mol. Wt.	280.28
Stock Status:	Custom Synthesis

Methotrexate Impurity 5

CAT. No.	CP-M12046
CAS. No.	4215-07-0
Mol. F.	C7H8N6
Mol. Wt.	176.18
Stock Status:	Custom Synthesis

Methotrexate Impurity 7

CAT. No.	CP-M12047
CAS. No.	57963-63-0
Mol. F.	C16H21NO6
Mol. Wt.	323.35
Stock Status:	Custom Synthesis

Methotrexate Impurity 9

CAT. No.	CP-M12048
CAS. No.	10541-83-0
Mol. F.	C8H9NO2
Mol. Wt.	151.17
Stock Status:	Custom Synthesis

Methotrexate Impurity 11

CAT. No.	CP-M12049
CAS. No.	34794-87-1
Mol. F.	C15H14N6O3
Mol. Wt.	326.32
Stock Status:	Custom Synthesis

Methotrexate Impurity 12

CAT. No.	CP-M12050
CAS. No.	881-33-4
Mol. F.	C7H8N6O
Mol. Wt.	192.18
Stock Status:	Custom Synthesis

Methotrexate Diethyl Ester

CAT. No.	CP-M12051
CAS. No.	43170-88-3
Mol. F.	C24H30N8O5
Mol. Wt.	510.56
Stock Status:	Custom Synthesis

Methotrexate Impurity 15

CAT. No.	CP-M12052
CAS. No.	65148-64-3
Mol. F.	C22H26N8O5
Mol. Wt.	482.5
Stock Status:	Custom Synthesis

Methotrexate Impurity 16

CAT. No.	CP-M12053
CAS. No.	65148-63-2
Mol. F.	C22H26N8O5
Mol. Wt.	482.5
Stock Status:	Custom Synthesis

Methotrexate Disodium

CAT. No.	CP-M12054
CAS. No.	7413-34-5
Mol. F.	C20H20N8O52 : 2(Na)
Mol. Wt.	452.43 : 2(22.99)
Stock Status:	Custom Synthesis

Rel. Cas No: 59-05-2 (free base) ; 1200807-71-1 (disodium trihydrate) ; 6745-93-3 (hydrate)

Methotrexate Impurity 17

CAT. No.	CP-M12055
CAS. No.	2820151-35-5
Mol. F.	C17H24N2O5
Mol. Wt.	336.39
Stock Status:	Custom Synthesis

N-Nitroso Methotrexate EP Impurity L (Possibility 1)

CAT. No.	CP-M12056
CAS. No.	NA
Mol. F.	C13H15N3O6
Mol. Wt.	309.28
Stock Status:	Custom Synthesis

N-Nitroso Methotrexate EP Impurity L Enantiomer

CAT. No.	CP-M12057
CAS. No.	NA
Mol. F.	C13H15N3O6
Mol. Wt.	309.28
Stock Status:	Custom Synthesis

N-Nitroso Methotrexate Impurity 11

CAT. No.	CP-M12058
CAS. No.	NA
Mol. F.	C4H7N7O
Mol. Wt.	169.15
Stock Status:	Custom Synthesis

N-Nitroso (R)-Methotrexate EP Impurity B

CAT. No.	CP-M12059
CAS. No.	NA
Mol. F.	C19H19N9O6
Mol. Wt.	469.42
Stock Status:	Custom Synthesis

a b c d e f g h i j k l m n o p q r s t u v w x y z

Methotrexate

Pharmaceutical Reference Standards

Methotrexate

Methotrexate EP Impurity A

Methotrexate EP Impurity B

Methotrexate EP Impurity D

Methotrexate EP Impurity E

Methotrexate EP Impurity F

Methotrexate EP Impurity G

Methotrexate EP Impurity H

Methotrexate EP Impurity L

Methotrexate EP Impurity K

N-Nitroso Methotrexate EP Impurity L

N-Nitroso Methotrexate EP Impurity B

S-methylaminobenzoyl glutamicester

Diethyl N-(3-Methylaminobenzoyl)-L-glutamate

N-Nitroso Methotrexate EP Impurity F

N,N-Dinitroso Methotrexate EP Impurity L

N-Nitroso Methotrexate

N-Nitroso Methotrexate Impurity 1

N-Nitroso Methotrexate Impurity 2

N-Nitroso Methotrexate Impurity 3

N-Nitroso Methotrexate Impurity 4

N-Nitroso Methotrexate Impurity 5

N-Nitroso Methotrexate Diethyl Ester

N-Nitroso S-Methylaminobenzoyl Glutamicester

Methotrexate Impurity 1

Methotrexate EP Impurity I

Methotrexate EP Impurity J

7-Hydroxy Methotrexate

Methotrexate Dimethylamide

6-Methyl-2,4-pteridinediamine

N-(4-chlorobenzoyl)-L-glutamic acid

Methotrexate Impurity 8

N-(4-hydroxybenzoyl)-L-Glutamic acid

Methotrexate Impurity 19

Methotrexate Impurity 18

Methotrexate Dihydrate

Methotrexate EP Impurity C

2,4-Diaminopteridine

Methotrexate Impurity 2

(+/-)Amethopterin

Methotrexate Impurity 4

Methotrexate Impurity 5

Methotrexate Impurity 7

Methotrexate Impurity 9

Methotrexate Impurity 11

Methotrexate Impurity 12

Methotrexate Diethyl Ester

Methotrexate Impurity 15

Methotrexate Impurity 16

Methotrexate Disodium

Methotrexate Impurity 17

N-Nitroso Methotrexate EP Impurity L (Possibility 1)

N-Nitroso Methotrexate EP Impurity L Enantiomer

N-Nitroso Methotrexate Impurity 11

N-Nitroso (R)-Methotrexate EP Impurity B