API Impurities
Methotrexate
Chemical Name: (2S)-2-[[4-[[(2,4-Diaminopteridin-6-yl)m...
CAS No:
59-05-2 (acid) ; 7413-34-5 (disodium)
Molecular Formula: C20H22N8O5
Molecular Weight: 454.44
CAT No:
ALL-MET-345
Keywords: Methotrexate
Inventory Status:IN STOCK
Methotrexate 7-Cyano Dimethyl Ester
Chemical Name: (S)-Dimethyl 2-(4-(((2,4-diamino-7-cyano...
CAS No:
112163-39-0
Molecular Formula: C23H25N9O5
Molecular Weight: 507.5
CAT No:
ALL-MET-390
Keywords: Methotrexate 7-Cyano Dimethyl Ester
Inventory Status:IN STOCK
Methotrexate 7-Hydroxy Metabolite
Chemical Name: 4-Amino-7-hydroxy-10-methylpteroylglutam...
CAS No:
5939-37-7
Molecular Formula: C20H22N8O6
Molecular Weight: 470.44
CAT No:
ALL-MET-377
Keywords: Methotrexate 7-Hydroxy Metabolite
Inventory Status:IN STOCK
Methotrexate Dimethylamide
Chemical Name: (S)-2-(4-(((2,4-Diaminopteridin-6-yl)met...
CAS No:
71074-44-7
Molecular Formula: C22H27N9O4
Molecular Weight: 481.51
CAT No:
ALL-MET-447
Keywords: Methotrexate Dimethylamide
Inventory Status:IN STOCK
Methotrexate EP Impurity A
Chemical Name: 2,4-Diamino-6-(hydroxymethyl) pteridine
CAS No:
945-24-4
Molecular Formula: C7H8N6O
Molecular Weight: 192.18
CAT No:
ALL-MET-4
Keywords: Methotrexate EP Impurity A
Inventory Status:IN STOCK
Methotrexate EP Impurity B
Chemical Name: (2S)-2-[[4-[[(2,4-diaminopteridin-6-yl)m...
CAS No:
54-62-6
Molecular Formula: C19H20N8O5
Molecular Weight: 440.41
CAT No:
ALL-MET-6
Keywords: Methotrexate EP Impurity B
Inventory Status:IN STOCK
Methotrexate EP Impurity C
Chemical Name: (2S)-2-[[4-[[(2-amino-4-hydroxy pteridin...
CAS No:
2410-93-7
Molecular Formula: C20H21N7O6
Molecular Weight: 455.42
CAT No:
ALL-MET-937
Keywords: Methotrexate EP Impurity C
Inventory Status:IN STOCK
Methotrexate EP Impurity D
Chemical Name: 4-[[(2-amino-4-hydroxypteridin-6-yl)meth...
CAS No:
5623-18-7
Molecular Formula: C15H14N6O3
Molecular Weight: 326.31
CAT No:
ALL-MET-187
Keywords: Methotrexate EP Impurity D
Inventory Status:IN STOCK
Methotrexate EP Impurity D Desmethyl Impurity
Chemical Name: 4-[[(2-Amino-4-hydroxypteridin-6-yl)meth...
CAS No:
119-24-4
Molecular Formula: C14H12N6O3
Molecular Weight: 312.28
CAT No:
ALL-MET-244
Keywords: Methotrexate EP Impurity D Desmethyl Imp...
Inventory Status:IN STOCK
Methotrexate EP Impurity E
Chemical Name: 4-[[(2,4-Diaminopteridin-6-yl) methyl] m...
CAS No:
19741-14-1
Molecular Formula: C15H15N7O2
Molecular Weight: 325.33
CAT No:
ALL-MET-141
Keywords: Methotrexate EP Impurity E
Inventory Status:IN STOCK
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Methotrexate EP Impurity E (HCl Salt)
Chemical Name: 4-[[(2,4-Diaminopteridin-6-yl)methyl]met...
CAS No:
70844-48-3 (hemihydrochloride salt)
Molecular Formula: C15H15N7O2.1/2HCl
Molecular Weight: 343.56
CAT No:
ALL-MET-483
Keywords: Methotrexate EP Impurity E (HCl Salt)
Inventory Status:IN STOCK
Methotrexate EP Impurity F
Chemical Name: (2R)-2-[[4-[[(2,4-Diaminopteridin-6-yl)m...
CAS No:
51865-79-3
Molecular Formula: C20H22N8O5
Molecular Weight: 454.44
CAT No:
ALL-MET-793
Keywords: Methotrexate EP Impurity F
Inventory Status:IN STOCK
Methotrexate EP Impurity G
Chemical Name: (2S)-2-[[4-[[4-[[(2,4-Diaminopteridin-6-...
CAS No:
N.A.
Molecular Formula: C28H29N9O6
Molecular Weight: 587.59
CAT No:
ALL-MET-5
Keywords: Methotrexate EP Impurity G
Inventory Status:IN STOCK
Methotrexate EP Impurity H
Chemical Name: (2S)-2-[[4-[[(2,4-Diaminopteridin-6-yl)m...
CAS No:
67022-39-3
Molecular Formula: C21H24N8O5
Molecular Weight: 468.47
CAT No:
ALL-MET-393
Keywords: Methotrexate EP Impurity H
Inventory Status:IN STOCK
Methotrexate EP Impurity I
Chemical Name: (4S)-4-[[4-[[(2,4-Diaminopteridin-6-yl)m...
CAS No:
66147-29-3
Molecular Formula: C21H24N8O5 ;
Molecular Weight: 468.47
CAT No:
ALL-MET-293
Keywords: Methotrexate EP Impurity I
Inventory Status:IN STOCK
Methotrexate EP Impurity J
Chemical Name: Dimethyl(2S)-2-[[4-[[(2,4-diaminopteridi...
CAS No:
34378-65-9
Molecular Formula: C22H26N8O5
Molecular Weight: 482.49
CAT No:
ALL-MET-659
Keywords: Methotrexate EP Impurity J
Inventory Status:IN STOCK
Methotrexate EP Impurity K
Chemical Name: (2S)-2-[(4-Aminobenzoyl)amino]pentanedio...
CAS No:
4271-30-1
Molecular Formula: C12H14N2O5
Molecular Weight: 266.25
CAT No:
ALL-MET-301
Keywords: Methotrexate EP Impurity K
Inventory Status:IN STOCK
Methotrexate EP Impurity L
Chemical Name: (2S)-2-[[4-(Methylamino)benzoyl]amino]pe...
CAS No:
52980-68-4 (diacid)
Molecular Formula: C13H16N2O5 (diacid); C13H14N2Na2O5 (disodium salt)
Molecular Weight: 280.28; 324.24
CAT No:
ALL-MET-684
Keywords: Methotrexate EP Impurity L
Inventory Status:IN STOCK
Methotrexate α-tert-Butyl Ester
Chemical Name: (S)-5-tert-Butoxy-4-(4-(((2,4-diaminopte...
CAS No:
79640-70-3
Molecular Formula: C24H30N8O5
Molecular Weight: 510.55
CAT No:
ALL-MET-703
Keywords: Methotrexate α-tert-Butyl Ester
Inventory Status:IN STOCK