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Methotrexate EP Impurity B

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Chemical Name: (2S)-2-[[4-[[(2,4-diaminopteridin-6-yl)methyl]amino]benzoyl]amino]pentanedioic acid
CAT No: VS-M042002
CAS No: 54-62-6
Mol.F. C19H20N8O5
Mol.Wt.: 440.4
Status: Custom Synthesis


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Methotrexate

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CAT No: VS-M042000
CAS No: 59-05-2
Mol.F.: C20H22N8O5
Mol.Wt.: 454.5
Status: Custom Synthesis

Methotrexate EP Impurity A

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CAT No: VS-M042001
CAS No: 945-24-4
Mol.F.: C7H8N6O
Mol.Wt.: 192.1
Status: Custom Synthesis

Methotrexate EP Impurity B

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CAT No: VS-M042002
CAS No: 54-62-6
Mol.F.: C19H20N8O5
Mol.Wt.: 440.4
Status: Custom Synthesis

Methotrexate Hydrate EP Impurity B

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CAT No: VS-M042003
CAS No: 1217459-90-9
Mol.F.: C19H20N8O5 : H2O
Mol.Wt.: 440.4 : 18.0
Status: Custom Synthesis

Methotrexate EP Impurity C

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CAT No: VS-M042004
CAS No: 2410-93-7
Mol.F.: C20H21N7O6
Mol.Wt.: 455.2
Status: Custom Synthesis

Methotrexate EP Impurity D

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CAT No: VS-M042005
CAS No: 5623-18-7
Mol.F.: C15H14N6O3
Mol.Wt.: 326.3
Status: Custom Synthesis

Methotrexate Hydrate EP Impurity D

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CAT No: VS-M042006
CAS No: 1189252-22-9
Mol.F.: C14H12N6O3 : H2O
Mol.Wt.: 312.3 : 18.0
Status: Custom Synthesis

Methotrexate EP Impurity E

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CAT No: VS-M042007
CAS No: 19741-14-1
Mol.F.: C15H15N7O2
Mol.Wt.: 325.3
Status: Custom Synthesis

Methotrexate EP Impurity F

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CAT No: VS-M042008
CAS No: 51865-79-3
Mol.F.: C20H22N8O5
Mol.Wt.: 454.4
Status: Custom Synthesis

Methotrexate EP Impurity G

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CAT No: VS-M042009
CAS No: N/A
Mol.F.: C28H29N9O6
Mol.Wt.: 587.6
Status: Custom Synthesis

Methotrexate EP Impurity H

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CAT No: VS-M042010
CAS No: 67022-39-3
Mol.F.: C21H24N8O5
Mol.Wt.: 468.5
Status: In Stock

Methotrexate EP Impurity I

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CAT No: VS-M042011
CAS No: 66147-29-3
Mol.F.: C21H24N8O5
Mol.Wt.: 468.5
Status: In Stock

Methotrexate EP Impurity J

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CAT No: VS-M042012
CAS No: 34378-65-9
Mol.F.: C22H28N8O5
Mol.Wt.: 482.5
Status: Custom Synthesis

Methotrexate EP Impurity K

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CAT No: VS-M042013
CAS No: 4271-30-1
Mol.F.: C12H14N2O5
Mol.Wt.: 266.3
Status: Custom Synthesis

Methotrexate EP Impurity L

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CAT No: VS-M042014
CAS No: 52980-68-4
Mol.F.: C13H16N2O5
Mol.Wt.: 280.3
Status: Custom Synthesis

Methotrexate 7-Hydroxy Metabolite

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CAT No: VS-M042015
CAS No: 5939-37-7
Mol.F.: C20H22N8O6
Mol.Wt.: 470.4
Status: Custom Synthesis

Methotrexate Impurity

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CAT No: VS-M042016
CAS No: 73978-41-3
Mol.F.: C7H8N6O : HCl
Mol.Wt.: 192.2 : 36.5
Status: Custom Synthesis

Methotrexate Dimethylamide

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CAT No: VS-M042017
CAS No: 71074-44-7
Mol.F.: C22H27N9O4
Mol.Wt.: 481.5
Status: Custom Synthesis

2,4-Diaminopteridine

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CAT No: VS-M042018
CAS No: 1127-93-1
Mol.F.: C6H6N6
Mol.Wt.: 162.2
Status: Custom Synthesis

6-Methyl-2,4-pteridinediamine 

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CAT No: VS-M042019
CAS No: 708-74-7
Mol.F.: C7H8N6
Mol.Wt.: 176.2
Status: Custom Synthesis

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

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CAT No: VS-M042020
CAS No: 57444-70-9
Mol.F.: C12H12ClNO5
Mol.Wt.: 285.7
Status: Custom Synthesis

S-methylaminobenzoyl glutamicester

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CAT No: VS-M042021
CAS No: 2378-95-2
Mol.F.: C17H24N2O5
Mol.Wt.: 336.4
Status: Custom Synthesis

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

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CAT No: VS-M042022
CAS No: 119843-02-6
Mol.F.: C12H13NO6
Mol.Wt.: 267.2
Status: Custom Synthesis

Methotrexate Impurity 1

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CAT No: VS-M042023
CAS No: 1029980-84-4
Mol.F.: C17H24N2O5
Mol.Wt.: 336.4
Status: Custom Synthesis

Methotrexate Impurity 2

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CAT No: VS-M042024
CAS No: N/A
Mol.F.: C17H24N2O5
Mol.Wt.: 336.4
Status: Custom Synthesis

Methotrexate Impurity 3

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CAT No: VS-M042025
CAS No: N/A
Mol.F.: C25H31N3O6
Mol.Wt.: 469.5
Status: Custom Synthesis

Methotrexate Impurity 11

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CAT No: VS-M042026
CAS No: 34794-87-1
Mol.F.: C15H14N6O3
Mol.Wt.: 326.3
Status: Custom Synthesis

Methotrexate Impurity 5

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CAT No: VS-M042027
CAS No: 4215-07-0
Mol.F.: C7H8N6
Mol.Wt.: 176.2
Status: Custom Synthesis

Methotrexate EP Impurity E (HCl Salt)

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CAT No: VS-M042028
CAS No: 70844-48-3
Mol.F.: C30H31ClN14O4
Mol.Wt.: 687.12
Status: Custom Synthesis

R-Methotrexate

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CAT No: VS-M042029
CAS No: N/A
Mol.F.: C20H20N8Na2O5
Mol.Wt.: 498.41
Status: Custom Synthesis

Methotrexate Impurity 12

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CAT No: VS-M042030
CAS No: N/A
Mol.F.: C23H28N8O5
Mol.Wt.: 496.5
Status: Custom Synthesis

Methotrexate Impurity 13

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CAT No: VS-M042031
CAS No: N/A
Mol.F.: C23H28N8O5
Mol.Wt.: 496.5
Status: Custom Synthesis
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