Impurity - Methotrexate

N-Nitroso Methotrexate EP Impurity-B

N-Nitroso Methotrexate EP Impurity-B

CAS No. : Not Available

CAT No. : KMM018001

Formula : C19H19N9O6

FW : 469.41

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Methotrexate EP Impurity F

Methotrexate EP Impurity F

CAS No. : Not Available (Na salt) ; 51865-79-3 (free acid)

CAT No. : KMM018002

Formula : C20H20N8O5 : 2(Na)

FW : 454.44 : 2(23.0)

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Methotrexate

Methotrexate

CAS No. : 59-05-2

CAT No. : KMM018006

Formula : C20H22N8O5

FW : 454.4

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Methotrexate Dihydrate

Methotrexate Dihydrate

CAS No. : 1212284-68-8

CAT No. : KMM018011

Formula : C20H22N8O5 : 2(H2O)

FW : 454.4 : 2(18.0)

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Methotrexate Dimethylamide (USP)

Methotrexate Dimethylamide (USP)

CAS No. : 71074-44-7

CAT No. : KMM018012

Formula : C22H27N9O4

FW : 481.5

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Methotrexate Disodium

Methotrexate Disodium

CAS No. : 7413-34-5

CAT No. : KMM018013

Formula : C20H20N8O52 : 2(Na)

FW : 452.4 : 2(23.0)

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Methotrexate Disodium Tetrahydrate

Methotrexate Disodium Tetrahydrate

CAS No. : NA

CAT No. : KMM018014

Formula : C20H20N8O52 : 2(Na) : 4(H2O)

FW : 452.4 : 2(23.0) : 4(18.0)

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Methotrexate EP Impurity A

Methotrexate EP Impurity A

CAS No. : 945-24-4

CAT No. : KMM018015

Formula : C7H8N6O

FW : 192.1

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Methotrexate EP Impurity A (HCl salt)

Methotrexate EP Impurity A (HCl salt)

CAS No. : 73978-41-3

CAT No. : KMM018016

Formula : C7H8N6O : HCl

FW : 192.2 : 36.5

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Methotrexate EP Impurity B

Methotrexate EP Impurity B

CAS No. : 54-62-6

CAT No. : KMM018017

Formula : C19H20N8O5

FW : 440.4

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Methotrexate EP Impurity C

Methotrexate EP Impurity C

CAS No. : 2410-93-7

CAT No. : KMM018018

Formula : C20H21N7O6

FW : 455.4

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Methotrexate EP Impurity D

Methotrexate EP Impurity D

CAS No. : 5623-18-7

CAT No. : KMM018019

Formula : C15H14N6O3

FW : 326.3

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Methotrexate EP Impurity E

Methotrexate EP Impurity E

CAS No. : 19741-14-1

CAT No. : KMM018020

Formula : C15H15N7O2

FW : 325.3

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Methotrexate EP Impurity G

Methotrexate EP Impurity G

CAS No. : 2519848-42-9

CAT No. : KMM018022

Formula : C28H29N9O6

FW : 587.6

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Methotrexate EP Impurity H

Methotrexate EP Impurity H

CAS No. : 67022-39-3

CAT No. : KMM018023

Formula : C21H24N8O5

FW : 468.5

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Methotrexate EP Impurity I

Methotrexate EP Impurity I

CAS No. : 66147-29-3

CAT No. : KMM018024

Formula : C21H24N8O5

FW : 468.5

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Methotrexate EP Impurity J

Methotrexate EP Impurity J

CAS No. : 34378-65-9

CAT No. : KMM018025

Formula : C22H26N8O5

FW : 482.5

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Methotrexate EP Impurity K

Methotrexate EP Impurity K

CAS No. : 4271-30-1

CAT No. : KMM018026

Formula : C12H14N2O5

FW : 266.3

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Methotrexate EP Impurity L

Methotrexate EP Impurity L

CAS No. : 52980-68-4

CAT No. : KMM018027

Formula : C13H16N2O5

FW : 280.3

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Methotrexate Hydrate EP Impurity B

Methotrexate Hydrate EP Impurity B

CAS No. : 1217459-90-9

CAT No. : KMM018028

Formula : C19H20N8O5 : H2O

FW : 440.4 : 18.0

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Methotrexate 7-Hydroxy Metabolite

Methotrexate 7-Hydroxy Metabolite

CAS No. : 5939-37-7

CAT No. : KMM018007

Formula : C20H22N8O6

FW : 470.4

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Methotrexate N-Desmethyl Impurity

Methotrexate N-Desmethyl Impurity

CAS No. : 1189252-22-9

CAT No. : KMM018048

Formula : C14H12N6O3 : H2O

FW : 312.3 : 18.0

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(+/-)Amethopterin

(+/-)Amethopterin

CAS No. : 60388-53-6

CAT No. : KMM018003

Formula : C20H22N8O5

FW : 454.4

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2,4-Diaminopteridine

2,4-Diaminopteridine

CAS No. : 1127-93-1

CAT No. : KMM018004

Formula : C6H6N6

FW : 162.2

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6-Methyl-2,4-pteridinediamine 

6-Methyl-2,4-pteridinediamine 

CAS No. : 708-74-7

CAT No. : KMM018005

Formula : C7H8N6

FW : 176.2

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Methotrexate Diethyl Ester

Methotrexate Diethyl Ester

CAS No. : 43170-88-3

CAT No. : KMM018009

Formula : C24H30N8O5

FW : 510.6

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Methotrexate Impurity 1

Methotrexate Impurity 1

CAS No. : 1029980-84-4

CAT No. : KMM018029

Formula : C17H24N2O5

FW : 336.4

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Methotrexate Impurity 10

Methotrexate Impurity 10

CAS No. : NA

CAT No. : KMM018030

Formula : C16H20ClNO5

FW : 341.8

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Methotrexate Impurity 11

Methotrexate Impurity 11

CAS No. : 34794-87-1

CAT No. : KMM018031

Formula : C15H14N6O3

FW : 326.3

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Methotrexate Impurity 12

Methotrexate Impurity 12

CAS No. : 881-33-4

CAT No. : KMM018032

Formula : C7H8N6O

FW : 192.2

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Methotrexate Impurity 13

Methotrexate Impurity 13

CAS No. : NA

CAT No. : KMM018033

Formula : C15H20N2O5

FW : 308.3

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Methotrexate Impurity 14

Methotrexate Impurity 14

CAS No. : NA

CAT No. : KMM018034

Formula : C15H20N2O5

FW : 308.3

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Methotrexate Impurity 15

Methotrexate Impurity 15

CAS No. : 65148-64-3

CAT No. : KMM018035

Formula : C22H26N8O5

FW : 482.5

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Methotrexate Impurity 16

Methotrexate Impurity 16

CAS No. : 65148-63-2

CAT No. : KMM018036

Formula : C22H26N8O5

FW : 482.5

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Methotrexate Impurity 17

Methotrexate Impurity 17

CAS No. : 2820151-35-5

CAT No. : KMM018037

Formula : C17H24N2O5

FW : 336.4

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Methotrexate Impurity 18

Methotrexate Impurity 18

CAS No. : NA

CAT No. : KMM018038

Formula : C23H28N8O5

FW : 496.5

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Methotrexate Impurity 19

Methotrexate Impurity 19

CAS No. : NA

CAT No. : KMM018039

Formula : C23H28N8O5

FW : 496.5

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Methotrexate Impurity 3

Methotrexate Impurity 3

CAS No. : NA

CAT No. : KMM018041

Formula : C25H31N3O6

FW : 469.5

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Methotrexate Impurity 4

Methotrexate Impurity 4

CAS No. : 52030-86-1

CAT No. : KMM018042

Formula : C13H16N2O5

FW : 280.3

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Methotrexate Impurity 5

Methotrexate Impurity 5

CAS No. : 4215-07-0

CAT No. : KMM018043

Formula : C7H8N6

FW : 176.2

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Methotrexate Impurity 7

Methotrexate Impurity 7

CAS No. : 57963-63-0

CAT No. : KMM018045

Formula : C16H21NO6

FW : 323.3

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Methotrexate Impurity 8

Methotrexate Impurity 8

CAS No. : 909874-43-7

CAT No. : KMM018046

Formula : C18H26N2O5

FW : 350.4

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Methotrexate Impurity 9

Methotrexate Impurity 9

CAS No. : 10541-83-0

CAT No. : KMM018047

Formula : C8H9NO2

FW : 151.2

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

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

CAS No. : 57444-70-9

CAT No. : KMM018054

Formula : C12H12ClNO5

FW : 285.7

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

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

CAS No. : 119843-02-6

CAT No. : KMM018055

Formula : C12H13NO6

FW : 267.2

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Methotrexate Impurity 2

Methotrexate Impurity 2

CAS No. : 51865-66-8

CAT No. : KMM018040

Formula : C17H24N2O5

FW : 336.4

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Methotrexate Impurity 6

Methotrexate Impurity 6

CAS No. : NA

CAT No. : KMM018044

Formula : C8H10N6O2

FW : 222.2

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S-methylaminobenzoyl glutamicester

S-methylaminobenzoyl glutamicester

CAS No. : 2378-95-2

CAT No. : KMM018064

Formula : C17H24N2O5

FW : 336.4

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Methotrexate D3

Methotrexate D3

CAS No. : 432545-63-6

CAT No. : KMM018008

Formula : C20H19D3N8O5

FW : 457.5

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N-Nitroso Methotrexate EP Impurity B D6

N-Nitroso Methotrexate EP Impurity B D6

CAS No. : NA

CAT No. : KMM018058

Formula : C19H13D6N9O6

FW : 475.5

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N-Nitroso Methotrexate EP Impurity B

N-Nitroso Methotrexate EP Impurity B

CAS No. : NA

CAT No. : KMM018057

Formula : C19H19N9O6

FW : 469.4

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N-Nitroso Methotrexate EP Impurity-L

N-Nitroso Methotrexate EP Impurity-L

CAS No. : NA

CAT No. : KMM018061

Formula : C13H15N3O6

FW : 309.3

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N-Nitroso S-Methylaminobenzoyl Glutamicester

N-Nitroso S-Methylaminobenzoyl Glutamicester

CAS No. : NA

CAT No. : KMM018062

Formula : C17H23N3O6

FW : 365.4

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Methotrexate Nitroso Impurity 2

Methotrexate Nitroso Impurity 2

CAS No. : NA

CAT No. : KMM018050

Formula : C20H19N9O7

FW : 497.4

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Methotrexate Nitroso Impurity 3

Methotrexate Nitroso Impurity 3

CAS No. : NA

CAT No. : KMM018051

Formula : C17H23N3O6

FW : 365.4

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Methotrexate diethyl ester Nitroso Impurity

Methotrexate diethyl ester Nitroso Impurity

CAS No. : NA

CAT No. : KMM018010

Formula : C24H29N9O6

FW : 539.6

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Methotrexate Nitroso Impurity 1

Methotrexate Nitroso Impurity 1

CAS No. : NA

CAT No. : KMM018049

Formula : C21H21N9O6 : 2(Na)

FW : 495.5 : 2(23.0)

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Methotrexate Nitroso Impurity 4

Methotrexate Nitroso Impurity 4

CAS No. : NA

CAT No. : KMM018052

Formula : C17H23N3O6

FW : 365.4

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Methotrexate Nitroso Impurity 5

Methotrexate Nitroso Impurity 5

CAS No. : NA

CAT No. : KMM018053

Formula : C17H22N4O7

FW : 394.4

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N,N-Dinitroso Methotrexate EP Impurity L

N,N-Dinitroso Methotrexate EP Impurity L

CAS No. : NA

CAT No. : KMM018063

Formula : C13H14N4O7

FW : 338.3

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N-Nitroso Methotrexate

N-Nitroso Methotrexate

CAS No. : NA

CAT No. : KMM018056

Formula : C20H21N9O6

FW : 483.4

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N-Nitroso Methotrexate EP Impurity F

N-Nitroso Methotrexate EP Impurity F

CAS No. : NA

CAT No. : KMM018059

Formula : C20H21N9O6

FW : 483.4

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N-Nitroso Methotrexate EP Impurity L

N-Nitroso Methotrexate EP Impurity L

CAS No. : NA

CAT No. : KMM018060

Formula : C13H15N3O6

FW : 309.3

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Methotrexate EP Impurity F

Methotrexate EP Impurity F

CAS No. : 51865-79-3

CAT No. : KMM018021

Formula : C20H22N8O5

FW : 454.4

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