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Pharmaceutical Reference Standards

Trimethoprim

Picture of Trimethoprim
CAT No: SZ-T033001
CAS No: 738-70-5
Mol.F. : C14H18N4O3
Mol.Wt. : 290.3
Inv. Status: In Stock
SZ-T033001
CAS No:738-70-5
Mol.F.: C14H18N4O3
Mol.Wt.: 290.3
Inv. Status: In Stock

Trimethoprim EP Impurity A

Picture of Trimethoprim EP Impurity A
CAT No: SZ-T033002
CAS No: 213745-86-9
Mol.F. : C15H20N4O3
Mol.Wt. : 304.4
Inv. Status: In Stock
SZ-T033002
CAS No:213745-86-9
Mol.F.: C15H20N4O3
Mol.Wt.: 304.4
Inv. Status: In Stock

Trimethoprim EP Impurity B

Picture of Trimethoprim EP Impurity B
CAT No: SZ-T033003
CAS No: 30806-86-1
Mol.F. : C14H16N4O4
Mol.Wt. : 304.3
Inv. Status: In Stock
SZ-T033003
CAS No:30806-86-1
Mol.F.: C14H16N4O4
Mol.Wt.: 304.3
Inv. Status: In Stock

Trimethoprim EP Impurity C

Picture of Trimethoprim EP Impurity C
CAT No: SZ-T033004
CAS No: 29606-06-2
Mol.F. : C14H18N4O4
Mol.Wt. : 306.3
Inv. Status: In Stock
SZ-T033004
CAS No:29606-06-2
Mol.F.: C14H18N4O4
Mol.Wt.: 306.3
Inv. Status: In Stock

Trimethoprim EP Impurity D

Picture of Trimethoprim EP Impurity D
CAT No: SZ-T033005
CAS No: 92440-76-1
Mol.F. : C14H17N3O4
Mol.Wt. : 291.3
Inv. Status: In Stock
SZ-T033005
CAS No:92440-76-1
Mol.F.: C14H17N3O4
Mol.Wt.: 291.3
Inv. Status: In Stock

Trimethoprim EP Impurity E

Picture of Trimethoprim EP Impurity E
CAT No: SZ-T033006
CAS No: 60729-91-1
Mol.F. : C14H17N3O4
Mol.Wt. : 291.3
Inv. Status: In Stock
SZ-T033006
CAS No:60729-91-1
Mol.F.: C14H17N3O4
Mol.Wt.: 291.3
Inv. Status: In Stock

Trimethoprim EP Impurity F

Picture of Trimethoprim EP Impurity F
CAT No: SZ-T033007
CAS No: 16285-82-8
Mol.F. : C13H15BrN4O2
Mol.Wt. : 339.2
Inv. Status: In Stock
SZ-T033007
CAS No:16285-82-8
Mol.F.: C13H15BrN4O2
Mol.Wt.: 339.2
Inv. Status: In Stock

Trimethoprim EP Impurity G

Picture of Trimethoprim EP Impurity G
CAT No: SZ-T033008
CAS No: 78025-68-0
Mol.F. : C15H20N4O3
Mol.Wt. : 304.4
Inv. Status: In Stock
SZ-T033008
CAS No:78025-68-0
Mol.F.: C15H20N4O3
Mol.Wt.: 304.4
Inv. Status: In Stock

Trimethoprim EP Impurity H

Picture of Trimethoprim EP Impurity H
CAT No: SZ-T033009
CAS No: 1916-07-0
Mol.F. : C11H14O5
Mol.Wt. : 226.6
Inv. Status: In Stock
SZ-T033009
CAS No:1916-07-0
Mol.F.: C11H14O5
Mol.Wt.: 226.6
Inv. Status: In Stock

Trimethoprim EP Impurity I

Picture of Trimethoprim EP Impurity I
CAT No: SZ-T033010
CAS No: 30078-48-9
Mol.F. : C19H20N2O3
Mol.Wt. : 324.4
Inv. Status: In Stock
SZ-T033010
CAS No:30078-48-9
Mol.F.: C19H20N2O3
Mol.Wt.: 324.4
Inv. Status: In Stock

Trimethoprim EP Impurity J

Picture of Trimethoprim EP Impurity J
CAT No: SZ-T033011
CAS No: 118-41-2
Mol.F. : C10H12O5
Mol.Wt. : 212.2
Inv. Status: In Stock
SZ-T033011
CAS No:118-41-2
Mol.F.: C10H12O5
Mol.Wt.: 212.2
Inv. Status: In Stock

Trimethoprim EP Impurity K

Picture of Trimethoprim EP Impurity K
CAT No: SZ-T033012
CAS No: 62-53-3
Mol.F. : C6H7N
Mol.Wt. : 93.1
Inv. Status: In Stock
SZ-T033012
CAS No:62-53-3
Mol.F.: C6H7N
Mol.Wt.: 93.1
Inv. Status: In Stock

Trimethoprim Impurity 1

Picture of Trimethoprim Impurity 1
CAT No: SZ-T033014
CAS No: 93885-69-9
Mol.F. : C14H16N2O5
Mol.Wt. : 292.3
Inv. Status: Custom Synthesis
SZ-T033014
CAS No:93885-69-9
Mol.F.: C14H16N2O5
Mol.Wt.: 292.3
Inv. Status: Custom Synthesis

Trimethoprim Impurity 2

Picture of Trimethoprim Impurity 2
CAT No: SZ-T033015
CAS No: 72920-13-9
Mol.F. : C13H15N3O4
Mol.Wt. : 277.3
Inv. Status: Limited Stock
SZ-T033015
CAS No:72920-13-9
Mol.F.: C13H15N3O4
Mol.Wt.: 277.3
Inv. Status: Limited Stock

Trimethoprim Impurity 3

Picture of Trimethoprim Impurity 3
CAT No: SZ-T033016
CAS No: 92653-78-6
Mol.F. : C15H20N4O3
Mol.Wt. : 304.4
Inv. Status: Custom Synthesis
SZ-T033016
CAS No:92653-78-6
Mol.F.: C15H20N4O3
Mol.Wt.: 304.4
Inv. Status: Custom Synthesis

Syringaldehyde

Picture of Syringaldehyde
CAT No: SZ-T033017
CAS No: 134-96-3
Mol.F. : C9H10O4
Mol.Wt. : 182.2
Inv. Status: Custom Synthesis
SZ-T033017
CAS No:134-96-3
Mol.F.: C9H10O4
Mol.Wt.: 182.2
Inv. Status: Custom Synthesis

Trimethoprim Impurity 4

Picture of Trimethoprim Impurity 4
CAT No: SZ-T033018
CAS No: 86-81-7
Mol.F. : C10H12O4
Mol.Wt. : 196.2
Inv. Status: In Stock
SZ-T033018
CAS No:86-81-7
Mol.F.: C10H12O4
Mol.Wt.: 196.2
Inv. Status: In Stock

Trimethoprim Impurity 5

Picture of Trimethoprim Impurity 5
CAT No: SZ-T033019
CAS No: 30077-85-1
Mol.F. : C15H20N2O3
Mol.Wt. : 276.3
Inv. Status: In Stock
SZ-T033019
CAS No:30077-85-1
Mol.F.: C15H20N2O3
Mol.Wt.: 276.3
Inv. Status: In Stock

Trimethoprim Impurity 6

Picture of Trimethoprim Impurity 6
CAT No: SZ-T033021
CAS No: 1335303-62-2
Mol.F. : C20H28N4O8
Mol.Wt. : 452.5
Inv. Status: Custom Synthesis
SZ-T033021
CAS No:1335303-62-2
Mol.F.: C20H28N4O8
Mol.Wt.: 452.5
Inv. Status: Custom Synthesis

Trimethoprim Impurity 7

Picture of Trimethoprim Impurity 7
CAT No: SZ-T033022
CAS No: 21253-58-7
Mol.F. : C13H16N4O3
Mol.Wt. : 276.3
Inv. Status: Custom Synthesis
Rel. CAS No : 83322-41-2 (HCl salt)
SZ-T033022
CAS No:21253-58-7
Mol.F.: C13H16N4O3
Mol.Wt.: 276.3
Inv. Status: Custom Synthesis
Rel. CAS No : 83322-41-2 (HCl salt)

Stable Isotopes And Metabolites

Trimethoprim D3

Picture of Trimethoprim D3
CAT No: SZ-T033D01
CAS No: 1189923-38-3
Mol.F. : C14H15D3N4O3
Mol.Wt. : 293.3
Inv. Status: Custom Synthesis
SZ-T033D01
CAS No:1189923-38-3
Mol.F.: C14H15D3N4O3
Mol.Wt.: 293.3
Inv. Status: Custom Synthesis

Trimethoprim D9

Picture of Trimethoprim D9
CAT No: SZ-T033D02
CAS No: 1189460-62-5
Mol.F. : C14H9D9N4O3
Mol.Wt. : 299.4
Inv. Status: Custom Synthesis
SZ-T033D02
CAS No:1189460-62-5
Mol.F.: C14H9D9N4O3
Mol.Wt.: 299.4
Inv. Status: Custom Synthesis

3,4,5-Trimethoxybenzoic Acid D9

Picture of 3,4,5-Trimethoxybenzoic Acid D9
CAT No: SZ-T033D03
CAS No: 84759-05-7
Mol.F. : C10H3D9O5
Mol.Wt. : 221.3
Inv. Status: Custom Synthesis
SZ-T033D03
CAS No:84759-05-7
Mol.F.: C10H3D9O5
Mol.Wt.: 221.3
Inv. Status: Custom Synthesis

Possible Nitroso Standards

N-Nitroso Trimethoprim EP Impurity A

Picture of N-Nitroso Trimethoprim EP Impurity A
CAT No: SZ-T033020
CAS No: NA
Mol.F. : C15H19N5O4
Mol.Wt. : 333.3
Inv. Status: In Stock
SZ-T033020
CAS No:NA
Mol.F.: C15H19N5O4
Mol.Wt.: 333.3
Inv. Status: In Stock