Methotrexate EP Impurity A

Methotrexate EP Impurity A
Catalog No. KMM018015
CAS No. 945-24-4
Formula C7H8N6O
FW 192.1
Unit Price Stock
100 mg Enquire Enquire
Chemical Name (2,4-Diaminopteridin-6-yl)methanol (as per EP)
Purity >95%
Storage Store at 2-8 deg. C for long term storage
Shipping Product is stable to be Shipped at Room Temperature
Download MSDS

Related Products

N-Nitroso Methotrexate EP Impurity-B

N-Nitroso Methotrexate EP Impurity-B

CAS No. : Not Available

CAT No. : KMM018001

Formula : C19H19N9O6

FW : 469.41

View Details
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)

View Details
Methotrexate

Methotrexate

CAS No. : 59-05-2

CAT No. : KMM018006

Formula : C20H22N8O5

FW : 454.4

View Details
Methotrexate Dihydrate

Methotrexate Dihydrate

CAS No. : 1212284-68-8

CAT No. : KMM018011

Formula : C20H22N8O5 : 2(H2O)

FW : 454.4 : 2(18.0)

View Details
Methotrexate Dimethylamide (USP)

Methotrexate Dimethylamide (USP)

CAS No. : 71074-44-7

CAT No. : KMM018012

Formula : C22H27N9O4

FW : 481.5

View Details
Methotrexate Disodium

Methotrexate Disodium

CAS No. : 7413-34-5

CAT No. : KMM018013

Formula : C20H20N8O52 : 2(Na)

FW : 452.4 : 2(23.0)

View Details
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)

View Details
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

View Details
Methotrexate EP Impurity B

Methotrexate EP Impurity B

CAS No. : 54-62-6

CAT No. : KMM018017

Formula : C19H20N8O5

FW : 440.4

View Details
Methotrexate EP Impurity C

Methotrexate EP Impurity C

CAS No. : 2410-93-7

CAT No. : KMM018018

Formula : C20H21N7O6

FW : 455.4

View Details
Methotrexate EP Impurity D

Methotrexate EP Impurity D

CAS No. : 5623-18-7

CAT No. : KMM018019

Formula : C15H14N6O3

FW : 326.3

View Details
Methotrexate EP Impurity E

Methotrexate EP Impurity E

CAS No. : 19741-14-1

CAT No. : KMM018020

Formula : C15H15N7O2

FW : 325.3

View Details
Methotrexate EP Impurity G

Methotrexate EP Impurity G

CAS No. : 2519848-42-9

CAT No. : KMM018022

Formula : C28H29N9O6

FW : 587.6

View Details
Methotrexate EP Impurity H

Methotrexate EP Impurity H

CAS No. : 67022-39-3

CAT No. : KMM018023

Formula : C21H24N8O5

FW : 468.5

View Details
Methotrexate EP Impurity I

Methotrexate EP Impurity I

CAS No. : 66147-29-3

CAT No. : KMM018024

Formula : C21H24N8O5

FW : 468.5

View Details
Methotrexate EP Impurity J

Methotrexate EP Impurity J

CAS No. : 34378-65-9

CAT No. : KMM018025

Formula : C22H26N8O5

FW : 482.5

View Details
Methotrexate EP Impurity K

Methotrexate EP Impurity K

CAS No. : 4271-30-1

CAT No. : KMM018026

Formula : C12H14N2O5

FW : 266.3

View Details
Methotrexate EP Impurity L

Methotrexate EP Impurity L

CAS No. : 52980-68-4

CAT No. : KMM018027

Formula : C13H16N2O5

FW : 280.3

View Details
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

View Details
Methotrexate 7-Hydroxy Metabolite

Methotrexate 7-Hydroxy Metabolite

CAS No. : 5939-37-7

CAT No. : KMM018007

Formula : C20H22N8O6

FW : 470.4

View Details
Methotrexate N-Desmethyl Impurity

Methotrexate N-Desmethyl Impurity

CAS No. : 1189252-22-9

CAT No. : KMM018048

Formula : C14H12N6O3 : H2O

FW : 312.3 : 18.0

View Details
(+/-)Amethopterin

(+/-)Amethopterin

CAS No. : 60388-53-6

CAT No. : KMM018003

Formula : C20H22N8O5

FW : 454.4

View Details
2,4-Diaminopteridine

2,4-Diaminopteridine

CAS No. : 1127-93-1

CAT No. : KMM018004

Formula : C6H6N6

FW : 162.2

View Details
6-Methyl-2,4-pteridinediamine 

6-Methyl-2,4-pteridinediamine 

CAS No. : 708-74-7

CAT No. : KMM018005

Formula : C7H8N6

FW : 176.2

View Details
Methotrexate Diethyl Ester

Methotrexate Diethyl Ester

CAS No. : 43170-88-3

CAT No. : KMM018009

Formula : C24H30N8O5

FW : 510.6

View Details
Methotrexate Impurity 1

Methotrexate Impurity 1

CAS No. : 1029980-84-4

CAT No. : KMM018029

Formula : C17H24N2O5

FW : 336.4

View Details
Methotrexate Impurity 10

Methotrexate Impurity 10

CAS No. : NA

CAT No. : KMM018030

Formula : C16H20ClNO5

FW : 341.8

View Details
Methotrexate Impurity 11

Methotrexate Impurity 11

CAS No. : 34794-87-1

CAT No. : KMM018031

Formula : C15H14N6O3

FW : 326.3

View Details
Methotrexate Impurity 12

Methotrexate Impurity 12

CAS No. : 881-33-4

CAT No. : KMM018032

Formula : C7H8N6O

FW : 192.2

View Details
Methotrexate Impurity 13

Methotrexate Impurity 13

CAS No. : NA

CAT No. : KMM018033

Formula : C15H20N2O5

FW : 308.3

View Details
Methotrexate Impurity 14

Methotrexate Impurity 14

CAS No. : NA

CAT No. : KMM018034

Formula : C15H20N2O5

FW : 308.3

View Details
Methotrexate Impurity 15

Methotrexate Impurity 15

CAS No. : 65148-64-3

CAT No. : KMM018035

Formula : C22H26N8O5

FW : 482.5

View Details
Methotrexate Impurity 16

Methotrexate Impurity 16

CAS No. : 65148-63-2

CAT No. : KMM018036

Formula : C22H26N8O5

FW : 482.5

View Details
Methotrexate Impurity 17

Methotrexate Impurity 17

CAS No. : 2820151-35-5

CAT No. : KMM018037

Formula : C17H24N2O5

FW : 336.4

View Details
Methotrexate Impurity 18

Methotrexate Impurity 18

CAS No. : NA

CAT No. : KMM018038

Formula : C23H28N8O5

FW : 496.5

View Details
Methotrexate Impurity 19

Methotrexate Impurity 19

CAS No. : NA

CAT No. : KMM018039

Formula : C23H28N8O5

FW : 496.5

View Details
Methotrexate Impurity 3

Methotrexate Impurity 3

CAS No. : NA

CAT No. : KMM018041

Formula : C25H31N3O6

FW : 469.5

View Details
Methotrexate Impurity 4

Methotrexate Impurity 4

CAS No. : 52030-86-1

CAT No. : KMM018042

Formula : C13H16N2O5

FW : 280.3

View Details
Methotrexate Impurity 5

Methotrexate Impurity 5

CAS No. : 4215-07-0

CAT No. : KMM018043

Formula : C7H8N6

FW : 176.2

View Details
Methotrexate Impurity 7

Methotrexate Impurity 7

CAS No. : 57963-63-0

CAT No. : KMM018045

Formula : C16H21NO6

FW : 323.3

View Details
Methotrexate Impurity 8

Methotrexate Impurity 8

CAS No. : 909874-43-7

CAT No. : KMM018046

Formula : C18H26N2O5

FW : 350.4

View Details
Methotrexate Impurity 9

Methotrexate Impurity 9

CAS No. : 10541-83-0

CAT No. : KMM018047

Formula : C8H9NO2

FW : 151.2

View Details
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

View Details
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

View Details
Methotrexate Impurity 2

Methotrexate Impurity 2

CAS No. : 51865-66-8

CAT No. : KMM018040

Formula : C17H24N2O5

FW : 336.4

View Details
Methotrexate Impurity 6

Methotrexate Impurity 6

CAS No. : NA

CAT No. : KMM018044

Formula : C8H10N6O2

FW : 222.2

View Details
S-methylaminobenzoyl glutamicester

S-methylaminobenzoyl glutamicester

CAS No. : 2378-95-2

CAT No. : KMM018064

Formula : C17H24N2O5

FW : 336.4

View Details
Methotrexate D3

Methotrexate D3

CAS No. : 432545-63-6

CAT No. : KMM018008

Formula : C20H19D3N8O5

FW : 457.5

View Details
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

View Details
N-Nitroso Methotrexate EP Impurity B

N-Nitroso Methotrexate EP Impurity B

CAS No. : NA

CAT No. : KMM018057

Formula : C19H19N9O6

FW : 469.4

View Details
N-Nitroso Methotrexate EP Impurity-L

N-Nitroso Methotrexate EP Impurity-L

CAS No. : NA

CAT No. : KMM018061

Formula : C13H15N3O6

FW : 309.3

View Details
N-Nitroso S-Methylaminobenzoyl Glutamicester

N-Nitroso S-Methylaminobenzoyl Glutamicester

CAS No. : NA

CAT No. : KMM018062

Formula : C17H23N3O6

FW : 365.4

View Details
Methotrexate Nitroso Impurity 2

Methotrexate Nitroso Impurity 2

CAS No. : NA

CAT No. : KMM018050

Formula : C20H19N9O7

FW : 497.4

View Details
Methotrexate Nitroso Impurity 3

Methotrexate Nitroso Impurity 3

CAS No. : NA

CAT No. : KMM018051

Formula : C17H23N3O6

FW : 365.4

View Details
Methotrexate diethyl ester Nitroso Impurity

Methotrexate diethyl ester Nitroso Impurity

CAS No. : NA

CAT No. : KMM018010

Formula : C24H29N9O6

FW : 539.6

View Details
Methotrexate Nitroso Impurity 1

Methotrexate Nitroso Impurity 1

CAS No. : NA

CAT No. : KMM018049

Formula : C21H21N9O6 : 2(Na)

FW : 495.5 : 2(23.0)

View Details
Methotrexate Nitroso Impurity 4

Methotrexate Nitroso Impurity 4

CAS No. : NA

CAT No. : KMM018052

Formula : C17H23N3O6

FW : 365.4

View Details
Methotrexate Nitroso Impurity 5

Methotrexate Nitroso Impurity 5

CAS No. : NA

CAT No. : KMM018053

Formula : C17H22N4O7

FW : 394.4

View Details
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

View Details
N-Nitroso Methotrexate

N-Nitroso Methotrexate

CAS No. : NA

CAT No. : KMM018056

Formula : C20H21N9O6

FW : 483.4

View Details
N-Nitroso Methotrexate EP Impurity F

N-Nitroso Methotrexate EP Impurity F

CAS No. : NA

CAT No. : KMM018059

Formula : C20H21N9O6

FW : 483.4

View Details
N-Nitroso Methotrexate EP Impurity L

N-Nitroso Methotrexate EP Impurity L

CAS No. : NA

CAT No. : KMM018060

Formula : C13H15N3O6

FW : 309.3

View Details
Methotrexate EP Impurity F

Methotrexate EP Impurity F

CAS No. : 51865-79-3

CAT No. : KMM018021

Formula : C20H22N8O5

FW : 454.4

View Details

About Us

K. M. Pharma Solution Pvt. Ltd, India. (CIN: U72100GJ2023PTC141278) is the FDCA, GMP-GLP, ISO 9001:2015, NABL (ISO/IEC 17025, ISO 17034) accredited, chemistry based innovation driven company involved in synthesis of nitrosamines impurities, pharmacopeial and non-pharmacopeial impurity standards, reference standards, drug metabolites, glucuronides, process degradants, excipient related impurities, unknown impurity isolation and characterisation and stable isotope products. Also is an integrated contract research, development and manufacturing organisation providing scientific services -- from early discovery to commercial supply.

Contact Us

  • Unit No.101, Shivam Industrial park,
    Sarkhej-bavala NH=8A, At-Moraiya, Changodar,
    Ahmedabad (Gujarat), India - 382213
  • contact@kmpharma.in
  • +91 9898822121

© 2025 K.M.Pharma. All Rights Reserved