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Pharmaceutical Reference Standards

Naproxen

Picture of Naproxen
CAT No: SZ-N007001
CAS No: 22204-53-1
Mol.F. : C14H14O3
Mol.Wt. : 230.3
Inv. Status: In Stock
Rel. CAS No : 22204-53-1 (free base) ; 57351-39-0 (K salt)
SZ-N007001
CAS No:22204-53-1
Mol.F.: C14H14O3
Mol.Wt.: 230.3
Inv. Status: In Stock
Rel. CAS No : 22204-53-1 (free base) ; 57351-39-0 (K salt)

Naproxen EP Impurity A

Picture of Naproxen EP Impurity A
CAT No: SZ-N007002
CAS No: 52079-10-4
Mol.F. : C13H12O3
Mol.Wt. : 216.2
Inv. Status: In Stock
SZ-N007002
CAS No:52079-10-4
Mol.F.: C13H12O3
Mol.Wt.: 216.2
Inv. Status: In Stock

Naproxen EP Impurity B

Picture of Naproxen EP Impurity B
CAT No: SZ-N007003
CAS No: 89617-86-7
Mol.F. : C14H13ClO3
Mol.Wt. : 264.7
Inv. Status: In Stock
SZ-N007003
CAS No:89617-86-7
Mol.F.: C14H13ClO3
Mol.Wt.: 264.7
Inv. Status: In Stock

Naproxen EP Impurity C

Picture of Naproxen EP Impurity C
CAT No: SZ-N007004
CAS No: 84236-26-0
Mol.F. : C14H13BrO3
Mol.Wt. : 309.2
Inv. Status: In Stock
SZ-N007004
CAS No:84236-26-0
Mol.F.: C14H13BrO3
Mol.Wt.: 309.2
Inv. Status: In Stock

Naproxen EP Impurity D

Picture of Naproxen EP Impurity D
CAT No: SZ-N007005
CAS No: 116883-62-6
Mol.F. : C14H13IO3
Mol.Wt. : 356.2
Inv. Status: In Stock
SZ-N007005
CAS No:116883-62-6
Mol.F.: C14H13IO3
Mol.Wt.: 356.2
Inv. Status: In Stock

Naproxen EP Impurity E

Picture of Naproxen EP Impurity E
CAT No: SZ-N007006
CAS No: 26159-35-3
Mol.F. : C15H16O3
Mol.Wt. : 244.3
Inv. Status: In Stock
SZ-N007006
CAS No:26159-35-3
Mol.F.: C15H16O3
Mol.Wt.: 244.3
Inv. Status: In Stock

Naproxen EP Impurity F

Picture of Naproxen EP Impurity F
CAT No: SZ-N007007
CAS No: 31220-35-6
Mol.F. : C16H18O3
Mol.Wt. : 258.3
Inv. Status: In Stock
SZ-N007007
CAS No:31220-35-6
Mol.F.: C16H18O3
Mol.Wt.: 258.3
Inv. Status: In Stock

Naproxen EP Impurity H

Picture of Naproxen EP Impurity H
CAT No: SZ-N007008
CAS No: 5111-66-0
Mol.F. : C11H10O2
Mol.Wt. : 174.2
Inv. Status: In Stock
SZ-N007008
CAS No:5111-66-0
Mol.F.: C11H10O2 
Mol.Wt.: 174.2
Inv. Status: In Stock

Naproxen EP Impurity I

Picture of Naproxen EP Impurity I
CAT No: SZ-N007009
CAS No: 23981-47-7
Mol.F. : C13H12O3
Mol.Wt. : 216.2
Inv. Status: In Stock
SZ-N007009
CAS No:23981-47-7
Mol.F.: C13H12O3
Mol.Wt.: 216.2
Inv. Status: In Stock

Naproxen EP Impurity J

Picture of Naproxen EP Impurity J
CAT No: SZ-N007011
CAS No: 21388-17-0
Mol.F. : C13H14O
Mol.Wt. : 186.3
Inv. Status: In Stock
SZ-N007011
CAS No:21388-17-0
Mol.F.: C13H14O
Mol.Wt.: 186.3
Inv. Status: In Stock

Naproxen EP Impurity K

Picture of Naproxen EP Impurity K
CAT No: SZ-N007012
CAS No: 77301-42-9
Mol.F. : C13H14O2
Mol.Wt. : 202.3
Inv. Status: In Stock
SZ-N007012
CAS No:77301-42-9
Mol.F.: C13H14O2
Mol.Wt.: 202.3
Inv. Status: In Stock

Naproxen EP Impurity L

Picture of Naproxen EP Impurity L
CAT No: SZ-N007013
CAS No: 3900-45-6
Mol.F. : C13H12O2
Mol.Wt. : 200.2
Inv. Status: In Stock
SZ-N007013
CAS No:3900-45-6
Mol.F.: C13H12O2
Mol.Wt.: 200.2
Inv. Status: In Stock

Naproxen EP Impurity M

Picture of Naproxen EP Impurity M
CAT No: SZ-N007014
CAS No: 93-04-9
Mol.F. : C11H10O
Mol.Wt. : 158.2
Inv. Status: In Stock
SZ-N007014
CAS No:93-04-9
Mol.F.: C11H10O
Mol.Wt.: 158.2
Inv. Status: In Stock

Naproxen EP Impurity N

Picture of Naproxen EP Impurity N
CAT No: SZ-N007015
CAS No: 5111-65-9
Mol.F. : C11H9BrO
Mol.Wt. : 237.1
Inv. Status: In Stock
SZ-N007015
CAS No:5111-65-9
Mol.F.: C11H9BrO
Mol.Wt.: 237.1
Inv. Status: In Stock

Naproxen USP RC G

Picture of Naproxen USP RC G
CAT No: SZ-N007017
CAS No: 23979-41-1
Mol.F. : C14H14O3
Mol.Wt. : 230.3
Inv. Status: In Stock
SZ-N007017
CAS No:23979-41-1
Mol.F.: C14H14O3
Mol.Wt.: 230.3
Inv. Status: In Stock

Naproxen Nitrile Impurity

Picture of Naproxen Nitrile Impurity
CAT No: SZ-N007020
CAS No: 67886-70-8
Mol.F. : C12H9NO
Mol.Wt. : 183.2
Inv. Status: Custom Synthesis
SZ-N007020
CAS No:67886-70-8
Mol.F.: C12H9NO
Mol.Wt.: 183.2
Inv. Status: Custom Synthesis

Naproxen EP Impurity O

Picture of Naproxen EP Impurity O
CAT No: SZ-N007021
CAS No: 2471-70-7
Mol.F. : C12H10O3
Mol.Wt. : 202.2
Inv. Status: In Stock
SZ-N007021
CAS No:2471-70-7
Mol.F.: C12H10O3
Mol.Wt.: 202.2
Inv. Status: In Stock

Naproxen Racemate

Picture of Naproxen Racemate
CAT No: SZ-N007022
CAS No: 23981-80-8
Mol.F. : C14H14O3
Mol.Wt. : 230.3
Inv. Status: In Stock
SZ-N007022
CAS No:23981-80-8
Mol.F.: C14H14O3
Mol.Wt.: 230.3
Inv. Status: In Stock

Naproxen Impurity 1

Picture of Naproxen Impurity 1
CAT No: SZ-N007023
CAS No: 10441-46-0
Mol.F. : C12H10O3
Mol.Wt. : 202.2
Inv. Status: In Stock
SZ-N007023
CAS No:10441-46-0
Mol.F.: C12H10O3
Mol.Wt.: 202.2
Inv. Status: In Stock

Naproxen Dehydro Impurity

Picture of Naproxen Dehydro Impurity
CAT No: SZ-N007024
CAS No: 27602-79-5
Mol.F. : C14H12O3
Mol.Wt. : 228.2
Inv. Status: Custom Synthesis
SZ-N007024
CAS No:27602-79-5
Mol.F.: C14H12O3
Mol.Wt.: 228.2
Inv. Status: Custom Synthesis

Alpha-Hydroxy Naproxen

Picture of Alpha-Hydroxy Naproxen
CAT No: SZ-N007025
CAS No: 32721-11-2
Mol.F. : C14H14O4
Mol.Wt. : 246.3
Inv. Status: Custom Synthesis
SZ-N007025
CAS No:32721-11-2
Mol.F.: C14H14O4
Mol.Wt.: 246.3
Inv. Status: Custom Synthesis

Naproxen Impurity D

Picture of Naproxen Impurity D
CAT No: SZ-N007026
CAS No: NA
Mol.F. : C18H21NaO4
Mol.Wt. : 324.4
Inv. Status: Custom Synthesis
SZ-N007026
CAS No:NA
Mol.F.: C18H21NaO4
Mol.Wt.: 324.4
Inv. Status: Custom Synthesis

Sec-Butyl Chloroacetate

Picture of Sec-Butyl Chloroacetate
CAT No: SZ-N007027
CAS No: 17696-64-9
Mol.F. : C6H11ClO2
Mol.Wt. : 150.6
Inv. Status: Custom Synthesis
SZ-N007027
CAS No:17696-64-9
Mol.F.: C6H11ClO2
Mol.Wt.: 150.6
Inv. Status: Custom Synthesis

Naproxen Impurity 2

Picture of Naproxen Impurity 2
CAT No: SZ-N007028
CAS No: 27602-75-1
Mol.F. : C14H14O2
Mol.Wt. : 214.3
Inv. Status: Custom Synthesis
SZ-N007028
CAS No:27602-75-1
Mol.F.: C14H14O2
Mol.Wt.: 214.3
Inv. Status: Custom Synthesis

5-Bromo Naproxen

Picture of 5-Bromo Naproxen
CAT No: SZ-N007029
CAS No: 27655-95-4
Mol.F. : C14H13BrO3
Mol.Wt. : 309.2
Inv. Status: Custom Synthesis
SZ-N007029
CAS No:27655-95-4
Mol.F.: C14H13BrO3
Mol.Wt.: 309.2
Inv. Status: Custom Synthesis

Naproxen Dimer

Picture of Naproxen Dimer
CAT No: SZ-N007031
CAS No: NA
Mol.F. : C28H26O6
Mol.Wt. : 458.5
Inv. Status: Custom Synthesis
SZ-N007031
CAS No:NA
Mol.F.: C28H26O6
Mol.Wt.: 458.5
Inv. Status: Custom Synthesis

Naproxen Impurity 3

Picture of Naproxen Impurity 3
CAT No: SZ-N007032
CAS No: 3453-55-2
Mol.F. : C13H12O2
Mol.Wt. : 200.2
Inv. Status: Custom Synthesis
SZ-N007032
CAS No:3453-55-2
Mol.F.: C13H12O2
Mol.Wt.: 200.2
Inv. Status: Custom Synthesis

Naproxen Impurity 4

Picture of Naproxen Impurity 4
CAT No: SZ-N007033
CAS No: 17056-94-9
Mol.F. : C13H12O2
Mol.Wt. : 200.2
Inv. Status: Custom Synthesis
SZ-N007033
CAS No:17056-94-9
Mol.F.: C13H12O2
Mol.Wt.: 200.2
Inv. Status: Custom Synthesis

Naproxen Impurity 5

Picture of Naproxen Impurity 5
CAT No: SZ-N007034
CAS No: 358369-77-4
Mol.F. : C20H26O8
Mol.Wt. : 394.4
Inv. Status: Custom Synthesis
SZ-N007034
CAS No:358369-77-4
Mol.F.: C20H26O8
Mol.Wt.: 394.4
Inv. Status: Custom Synthesis

Naproxen Impurity 6

Picture of Naproxen Impurity 6
CAT No: SZ-N007035
CAS No: NA
Mol.F. : C20H24O7
Mol.Wt. : 376.4
Inv. Status: Custom Synthesis
SZ-N007035
CAS No:NA
Mol.F.: C20H24O7
Mol.Wt.: 376.4
Inv. Status: Custom Synthesis

Naproxen Sodium

Picture of Naproxen Sodium
CAT No: SZ-N007037
CAS No: 26159-34-2
Mol.F. : C14H14O3 : Na
Mol.Wt. : 230.3 : 23.0
Inv. Status: In Stock
Rel. CAS No : 22204-53-1 (free base) ; 57351-39-0 (K salt)
SZ-N007037
CAS No:26159-34-2
Mol.F.: C14H14O3 : Na
Mol.Wt.: 230.3 : 23.0
Inv. Status: In Stock
Rel. CAS No : 22204-53-1 (free base) ; 57351-39-0 (K salt)

Naproxen Lactic acid Ester

Picture of Naproxen Lactic acid Ester
CAT No: SZ-N007038
CAS No: 140225-89-4
Mol.F. : C17H18O5
Mol.Wt. : 302.3
Inv. Status: Custom Synthesis
SZ-N007038
CAS No:140225-89-4
Mol.F.: C17H18O5
Mol.Wt.: 302.3
Inv. Status: Custom Synthesis

Naproxen  Glycerol  Ester Impurity 

Picture of Naproxen  Glycerol  Ester Impurity 
CAT No: SZ-N007039
CAS No: 38835-17-5
Mol.F. : C17H20O5
Mol.Wt. : 304.3
Inv. Status: Custom Synthesis
SZ-N007039
CAS No:38835-17-5
Mol.F.: C17H20O5
Mol.Wt.: 304.3
Inv. Status: Custom Synthesis

1-Acetyl-2-methoxynaphthalene

Picture of 1-Acetyl-2-methoxynaphthalene
CAT No: SZ-N007041
CAS No: 5672-94-6
Mol.F. : C13H12O2
Mol.Wt. : 200.2
Inv. Status: Custom Synthesis
SZ-N007041
CAS No:5672-94-6
Mol.F.: C13H12O2
Mol.Wt.: 200.2
Inv. Status: Custom Synthesis

Naproxen Impurity 7

Picture of Naproxen Impurity 7
CAT No: SZ-N007042
CAS No: NA
Mol.F. : C18H23NO3 : HCl
Mol.Wt. : 301.4 : 36.5
Inv. Status: In Stock
SZ-N007042
CAS No:NA
Mol.F.: C18H23NO3 : HCl
Mol.Wt.: 301.4 : 36.5
Inv. Status: In Stock

Naproxen Butanolamide

Picture of Naproxen Butanolamide
CAT No: SZ-N007043
CAS No: 2058179-15-8
Mol.F. : C18H23NO3
Mol.Wt. : 301.4
Inv. Status: In Stock
SZ-N007043
CAS No:2058179-15-8
Mol.F.: C18H23NO3
Mol.Wt.: 301.4
Inv. Status: In Stock

Desmethyl Naproxen

Picture of Desmethyl Naproxen
CAT No: SZ-N007044
CAS No: 60756-73-2
Mol.F. : C13H12O3
Mol.Wt. : 216.2
Inv. Status: Custom Synthesis
SZ-N007044
CAS No:60756-73-2
Mol.F.: C13H12O3
Mol.Wt.: 216.2
Inv. Status: Custom Synthesis

Naproxen Amino Butyl Ester

Picture of Naproxen Amino Butyl Ester
CAT No: SZ-N007045
CAS No: NA
Mol.F. : C18H23NO3
Mol.Wt. : 301.4
Inv. Status: Custom Synthesis
SZ-N007045
CAS No:NA
Mol.F.: C18H23NO3
Mol.Wt.: 301.4
Inv. Status: Custom Synthesis

Naproxen Impurity 8

Picture of Naproxen Impurity 8
CAT No: SZ-N007046
CAS No: NA
Mol.F. : C32H35NO5
Mol.Wt. : 513.6
Inv. Status: In Stock
SZ-N007046
CAS No:NA
Mol.F.: C32H35NO5
Mol.Wt.: 513.6
Inv. Status: In Stock

Naproxen Impurity 9

Picture of Naproxen Impurity 9
CAT No: SZ-N007047
CAS No: 2601735-81-1
Mol.F. : C18H22O4
Mol.Wt. : 302.4
Inv. Status: Custom Synthesis
SZ-N007047
CAS No:2601735-81-1
Mol.F.: C18H22O4
Mol.Wt.: 302.4
Inv. Status: Custom Synthesis

Naproxen Impurity 10

Picture of Naproxen Impurity 10
CAT No: SZ-N007048
CAS No: 939-26-4
Mol.F. : C11H9Br
Mol.Wt. : 221.1
Inv. Status: Custom Synthesis
SZ-N007048
CAS No:939-26-4
Mol.F.: C11H9Br
Mol.Wt.: 221.1
Inv. Status: Custom Synthesis

Naproxen Impurity 11

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CAT No: SZ-N007049
CAS No: 156967-24-7
Mol.F. : C17H20O3
Mol.Wt. : 272.3
Inv. Status: Custom Synthesis
SZ-N007049
CAS No:156967-24-7
Mol.F.: C17H20O3
Mol.Wt.: 272.3
Inv. Status: Custom Synthesis

Stable Isotopes And Metabolites

Naproxen-d3

Picture of Naproxen-d3
CAT No: SZ-N007D01
CAS No: NA
Mol.F. : C14H11D3O3
Mol.Wt. : 233.3
Inv. Status: In Stock
SZ-N007D01
CAS No:NA
Mol.F.: C14H11D3O3
Mol.Wt.: 233.3
Inv. Status: In Stock

Rac Naproxen-d3 Methyl Ester

Picture of Rac Naproxen-d3 Methyl Ester
CAT No: SZ-N007D02
CAS No: 1189511-76-9
Mol.F. : C15H13D3O3
Mol.Wt. : 247.3
Inv. Status: Custom Synthesis
SZ-N007D02
CAS No:1189511-76-9
Mol.F.: C15H13D3O3
Mol.Wt.: 247.3
Inv. Status: Custom Synthesis

Rac O-Desmethyl Naproxen D3

Picture of Rac O-Desmethyl Naproxen D3
CAT No: SZ-N007D03
CAS No: 1122399-99-8
Mol.F. : C13H9D3O3
Mol.Wt. : 219.3
Inv. Status: Custom Synthesis
SZ-N007D03
CAS No:1122399-99-8
Mol.F.: C13H9D3O3
Mol.Wt.: 219.3
Inv. Status: Custom Synthesis

(+/-)-Naproxen D3

Picture of (+/-)-Naproxen D3
CAT No: SZ-N007D04
CAS No: 958293-77-1
Mol.F. : C14H11D3O3
Mol.Wt. : 233.3
Inv. Status: Custom Synthesis
SZ-N007D04
CAS No:958293-77-1
Mol.F.: C14H11D3O3
Mol.Wt.: 233.3
Inv. Status: Custom Synthesis

Naproxen 13 C D3

Picture of Naproxen 13 C D3
CAT No: SZ-N007D05
CAS No: NA
Mol.F. : C1313CH11D3O3
Mol.Wt. : 234.3
Inv. Status: Custom Synthesis
SZ-N007D05
CAS No:NA
Mol.F.: C1313CH11D3O3
Mol.Wt.: 234.3
Inv. Status: Custom Synthesis