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Pharmaceutical Reference Standards

Diphenhydramine

Picture of Diphenhydramine
CAT No: SZ-D054001
CAS No: 58-73-1
Mol.F. : C17H21NO
Mol.Wt. : 255.4
Inv. Status: Out of Stock
Rel. CAS No : 147-24-0 (HCl salt)
SZ-D054001
CAS No:58-73-1
Mol.F.: C17H21NO
Mol.Wt.: 255.4
Inv. Status: Out of Stock
Rel. CAS No : 147-24-0 (HCl salt)

Diphenhydramine EP Impurity A

Picture of Diphenhydramine EP Impurity A
CAT No: SZ-D054002
CAS No: 53499-40-4
Mol.F. : C16H19NO : HCl
Mol.Wt. : 241.3 : 36.5
Inv. Status: In Stock
Rel. CAS No : 17471-10-2 (free base)
SZ-D054002
CAS No:53499-40-4
Mol.F.: C16H19NO : HCl
Mol.Wt.: 241.3 : 36.5
Inv. Status: In Stock
Rel. CAS No : 17471-10-2 (free base)

Diphenhydramine EP Impurity B

Picture of Diphenhydramine EP Impurity B
CAT No: SZ-D054003
CAS No: 19804-27-4
Mol.F. : C18H23NO
Mol.Wt. : 269.4
Inv. Status: In Stock
Rel. CAS No : 4024-34-4 (HCl salt)
SZ-D054003
CAS No:19804-27-4
Mol.F.: C18H23NO
Mol.Wt.: 269.4
Inv. Status: In Stock
Rel. CAS No : 4024-34-4 (HCl salt)

Diphenhydramine EP Impurity C

Picture of Diphenhydramine EP Impurity C
CAT No: SZ-D054004
CAS No: 1808-12-4
Mol.F. : C17H20BrNO : HCl
Mol.Wt. : 334.3 : 36.5
Inv. Status: Out of Stock, Custom Synthesis
Rel. CAS No : 118-23-0 (free base)
SZ-D054004
CAS No:1808-12-4
Mol.F.: C17H20BrNO : HCl
Mol.Wt.: 334.3 : 36.5
Inv. Status: Out of Stock, Custom Synthesis
Rel. CAS No : 118-23-0 (free base)

Diphenhydramine EP Impurity D

Picture of Diphenhydramine EP Impurity D
CAT No: SZ-D054005
CAS No: 91-01-0
Mol.F. : C13H12O
Mol.Wt. : 184.2
Inv. Status: In Stock
SZ-D054005
CAS No:91-01-0
Mol.F.: C13H12O
Mol.Wt.: 184.2
Inv. Status: In Stock

Diphenhydramine EP Impurity E

Picture of Diphenhydramine EP Impurity E
CAT No: SZ-D054006
CAS No: 119-61-9
Mol.F. : C13H10O
Mol.Wt. : 182.2
Inv. Status: In Stock
SZ-D054006
CAS No:119-61-9
Mol.F.: C13H10O
Mol.Wt.: 182.2
Inv. Status: In Stock

Diphenhydramine Impurity K

Picture of Diphenhydramine Impurity K
CAT No: SZ-D054007
CAS No: 574-42-5
Mol.F. : C26H22O
Mol.Wt. : 350.5
Inv. Status: Custom Synthesis
SZ-D054007
CAS No:574-42-5
Mol.F.: C26H22O 
Mol.Wt.: 350.5
Inv. Status: Custom Synthesis

Diphenhydramine Methiodide

Picture of Diphenhydramine Methiodide
CAT No: SZ-D054008
CAS No: 14177-81-2
Mol.F. : C18H24NO : I
Mol.Wt. : 270.4 : 126.9
Inv. Status: In Stock
Rel. CAS No : 29869-74-7 (free base)
SZ-D054008
CAS No:14177-81-2
Mol.F.: C18H24NO : I 
Mol.Wt.: 270.4 : 126.9
Inv. Status: In Stock
Rel. CAS No : 29869-74-7 (free base)

Diphenhydramine USP Related Compound B

Picture of Diphenhydramine USP Related Compound B
CAT No: SZ-D054009
CAS No: 19574-66-4
Mol.F. : C16H18O3
Mol.Wt. : 258.3
Inv. Status: Custom Synthesis
SZ-D054009
CAS No:19574-66-4
Mol.F.: C16H18O3 
Mol.Wt.: 258.3
Inv. Status: Custom Synthesis

Diphenhydramine N-Oxide Hydrochloride

Picture of Diphenhydramine N-Oxide Hydrochloride
CAT No: SZ-D054010
CAS No: 13168-00-8
Mol.F. : C17H21NO2 : HCl
Mol.Wt. : 271.4 : 36.5
Inv. Status: In Stock
Rel. CAS No : 3922-74-5 (free base)
SZ-D054010
CAS No:13168-00-8
Mol.F.: C17H21NO2 : HCl
Mol.Wt.: 271.4 : 36.5
Inv. Status: In Stock
Rel. CAS No : 3922-74-5 (free base)

Diphenhydramine Impurity 1

Picture of Diphenhydramine Impurity 1
CAT No: SZ-D054011
CAS No: NA
Mol.F. : C21H28N3O2
Mol.Wt. : 354.5
Inv. Status: Custom Synthesis
SZ-D054011
CAS No:NA
Mol.F.: C21H28N3O2
Mol.Wt.: 354.5
Inv. Status: Custom Synthesis

Diphenhydramine HCl

Picture of Diphenhydramine HCl
CAT No: SZ-D054012
CAS No: 147-24-0
Mol.F. : C17H21NO : HCl
Mol.Wt. : 255.4 : 36.5
Inv. Status: In Stock
Rel. CAS No : 58-73-1 (free base)
SZ-D054012
CAS No:147-24-0
Mol.F.: C17H21NO : HCl
Mol.Wt.: 255.4 : 36.5
Inv. Status: In Stock
Rel. CAS No : 58-73-1 (free base)

Diphenhydramine N-Oxide

Picture of Diphenhydramine N-Oxide
CAT No: SZ-D054013
CAS No: 3922-74-5
Mol.F. : C17H21NO2
Mol.Wt. : 271.4
Inv. Status: In Stock
Rel. CAS No : 13168-00-8 (HCl salt)
SZ-D054013
CAS No:3922-74-5
Mol.F.: C17H21NO2
Mol.Wt.: 271.4
Inv. Status: In Stock
Rel. CAS No : 13168-00-8 (HCl salt)

Diphenhydramine Citrate

Picture of Diphenhydramine Citrate
CAT No: SZ-D054014
CAS No: 88637-37-0
Mol.F. : C17H21NO : C6H8O7
Mol.Wt. : 255.4 : 192.1
Inv. Status: Custom Synthesis
Rel. CAS No : 58-73-1 (free base)
SZ-D054014
CAS No:88637-37-0
Mol.F.: C17H21NO : C6H8O7
Mol.Wt.: 255.4 : 192.1
Inv. Status: Custom Synthesis
Rel. CAS No : 58-73-1 (free base)

Stable Isotopes And Metabolites

Diphenhydramine D5 Hydrochloride

Picture of Diphenhydramine D5 Hydrochloride
CAT No: SZ-D054D01
CAS No: 1219795-16-0
Mol.F. : C17H16D5NO : HCl
Mol.Wt. : 260.4 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 1219908-66-3 (free base)
SZ-D054D01
CAS No:1219795-16-0
Mol.F.: C17H16D5NO : HCl
Mol.Wt.: 260.4 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 1219908-66-3 (free base)

Benzophenone-13C

Picture of Benzophenone-13C
CAT No: SZ-D054D02
CAS No: 32488-48-5
Mol.F. : C1213CH10O
Mol.Wt. : 183.2
Inv. Status: Custom Synthesis
SZ-D054D02
CAS No:32488-48-5
Mol.F.: C1213CH10O
Mol.Wt.: 183.2
Inv. Status: Custom Synthesis

N-Nitroso N-Desmethyl Diphenhydramine-D5

Picture of N-Nitroso N-Desmethyl Diphenhydramine-D5
CAT No: SZ-D054D03
CAS No: NA
Mol.F. : C16H13D5N2O2
Mol.Wt. : 275.4
Inv. Status: Custom Synthesis
SZ-D054D03
CAS No:NA
Mol.F.: C16H13D5N2O2
Mol.Wt.: 275.4
Inv. Status: Custom Synthesis