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Pharmaceutical Reference Standards

Diltiazem HCl

Picture of Diltiazem HCl
CAT No: SZ-D029001
CAS No: 33286-22-5
Mol.F. : C22H26N2O4S : HCl
Mol.Wt. : 414.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 42399-41-7 (free base)
SZ-D029001
CAS No:33286-22-5
Mol.F.: C22H26N2O4S : HCl
Mol.Wt.: 414.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 42399-41-7 (free base)

Diltiazem EP Impurity A

Picture of Diltiazem EP Impurity A
CAT No: SZ-D029002
CAS No: 111188-71-7
Mol.F. : C22H26N2O4S
Mol.Wt. : 414.5
Inv. Status: In Stock
SZ-D029002
CAS No:111188-71-7
Mol.F.: C22H26N2O4S
Mol.Wt.: 414.5
Inv. Status: In Stock

Diltiazem EP Impurity B

Picture of Diltiazem EP Impurity B
CAT No: SZ-D029003
CAS No: 87447-47-0
Mol.F. : C18H17NO4S
Mol.Wt. : 343.4
Inv. Status: In Stock
SZ-D029003
CAS No:87447-47-0
Mol.F.: C18H17NO4S
Mol.Wt.: 343.4
Inv. Status: In Stock

Diltiazem EP Impurity C

Picture of Diltiazem EP Impurity C
CAT No: SZ-D029004
CAS No: 1286126-67-7
Mol.F. : C21H24N2O4S : HCl
Mol.Wt. : 400.5 : 36.5
Inv. Status: In Stock
SZ-D029004
CAS No:1286126-67-7
Mol.F.: C21H24N2O4S : HCl
Mol.Wt.: 400.5 : 36.5
Inv. Status: In Stock

Diltiazem EP Impurity D

Picture of Diltiazem EP Impurity D
CAT No: SZ-D029005
CAS No: 130606-60-9
Mol.F. : C21H24N2O4S : HCl
Mol.Wt. : 400.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 86408-45-9 (free base)
SZ-D029005
CAS No:130606-60-9
Mol.F.: C21H24N2O4S : HCl
Mol.Wt.: 400.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 86408-45-9 (free base)

Diltiazem EP Impurity E

Picture of Diltiazem EP Impurity E
CAT No: SZ-D029006
CAS No: 42399-49-5
Mol.F. : C16H15NO3S
Mol.Wt. : 301.4
Inv. Status: In Stock
SZ-D029006
CAS No:42399-49-5
Mol.F.: C16H15NO3S
Mol.Wt.: 301.4
Inv. Status: In Stock

Diltiazem EP Impurity F

Picture of Diltiazem EP Impurity F
CAT No: SZ-D029007
CAS No: 42399-40-6
Mol.F. : C20H24N2O3S
Mol.Wt. : 372.5
Inv. Status: In Stock
Rel. CAS No : 75472-91-2 (HCl salt)
SZ-D029007
CAS No:42399-40-6
Mol.F.: C20H24N2O3S
Mol.Wt.: 372.5
Inv. Status: In Stock
Rel. CAS No : 75472-91-2 (HCl salt)

Diltiazem EP Impurity G

Picture of Diltiazem EP Impurity G
CAT No: SZ-D029008
CAS No: 81353-09-5
Mol.F. : C19H22N2O3S
Mol.Wt. : 358.5
Inv. Status: In Stock
SZ-D029008
CAS No:81353-09-5
Mol.F.: C19H22N2O3S
Mol.Wt.: 358.5
Inv. Status: In Stock

Diltiazem 2-Epimer O-Desacetyl Impurity

Picture of Diltiazem 2-Epimer O-Desacetyl Impurity
CAT No: SZ-D029009
CAS No: 91926-66-8
Mol.F. : C20H24N2O3S
Mol.Wt. : 372.5
Inv. Status: Custom Synthesis
SZ-D029009
CAS No:91926-66-8
Mol.F.: C20H24N2O3S
Mol.Wt.: 372.5
Inv. Status: Custom Synthesis

Diltiazem N,N-DiDesmethyl HCl

Picture of Diltiazem N,N-DiDesmethyl HCl
CAT No: SZ-D029011
CAS No: 116050-35-2
Mol.F. : C20H22N2O4S : HCl
Mol.Wt. : 386.5 : 36.5
Inv. Status: Out of Stock
Rel. CAS No : 115973-28-9 (free base)
SZ-D029011
CAS No:116050-35-2
Mol.F.: C20H22N2O4S : HCl
Mol.Wt.: 386.5 : 36.5
Inv. Status: Out of Stock
Rel. CAS No : 115973-28-9 (free base)

Diltiazem N-Oxide

Picture of Diltiazem N-Oxide
CAT No: SZ-D029012
CAS No: 142843-04-7
Mol.F. : C22H26N2O5S
Mol.Wt. : 430.5
Inv. Status: Limited Stock
SZ-D029012
CAS No:142843-04-7
Mol.F.: C22H26N2O5S
Mol.Wt.: 430.5
Inv. Status: Limited Stock

Diltiazem O-Desacetyl-O-Desmethyl HCl

Picture of Diltiazem O-Desacetyl-O-Desmethyl HCl
CAT No: SZ-D029014
CAS No: 96252-32-3
Mol.F. : C19H22N2O3S : HCl
Mol.Wt. : 358.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 84903-82-2 (free base)
SZ-D029014
CAS No:96252-32-3
Mol.F.: C19H22N2O3S : HCl
Mol.Wt.: 358.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 84903-82-2 (free base)

N,N,O-Tridesmethyl Desacetyl Diltiazem

Picture of N,N,O-Tridesmethyl Desacetyl Diltiazem
CAT No: SZ-D029015
CAS No: NA
Mol.F. : C17H18N2O3S : HBr
Mol.Wt. : 330.4 : 80.9
Inv. Status: Limited Stock
Rel. CAS No : 115992-91-1 (free base)
SZ-D029015
CAS No:NA
Mol.F.: C17H18N2O3S : HBr
Mol.Wt.: 330.4 : 80.9
Inv. Status: Limited Stock
Rel. CAS No : 115992-91-1 (free base)

Diltiazem DTZ-I Impurity

Picture of Diltiazem DTZ-I Impurity
CAT No: SZ-D029016
CAS No: 30842-48-9
Mol.F. : C19H19NO4S
Mol.Wt. : 357.4
Inv. Status: In Stock
SZ-D029016
CAS No:30842-48-9
Mol.F.: C19H19NO4S
Mol.Wt.: 357.4
Inv. Status: In Stock

Diltiazem DTZ-II Impurity

Picture of Diltiazem DTZ-II Impurity
CAT No: SZ-D029017
CAS No: NA
Mol.F. : C20H19NO4S
Mol.Wt. : 369.4
Inv. Status: In Stock
SZ-D029017
CAS No:NA
Mol.F.: C20H19NO4S
Mol.Wt.: 369.4
Inv. Status: In Stock

Diltiazem N-Oxide O-Desacetyl Impurity

Picture of Diltiazem N-Oxide O-Desacetyl Impurity
CAT No: SZ-D029018
CAS No: 122619-90-3
Mol.F. : C20H24N2O4S
Mol.Wt. : 388.5
Inv. Status: In Stock
SZ-D029018
CAS No:122619-90-3
Mol.F.: C20H24N2O4S
Mol.Wt.: 388.5
Inv. Status: In Stock

Desacetyl N, O-Didesmethyl Diltiazem

Picture of Desacetyl N, O-Didesmethyl Diltiazem
CAT No: SZ-D029019
CAS No: 86408-42-6
Mol.F. : C18H20N2O3S
Mol.Wt. : 344.4
Inv. Status: In Stock
Rel. CAS No : 142926-09-8 (HCl salt)
SZ-D029019
CAS No:86408-42-6
Mol.F.: C18H20N2O3S
Mol.Wt.: 344.4
Inv. Status: In Stock
Rel. CAS No : 142926-09-8 (HCl salt)

Diltiazem Sulfoxide

Picture of Diltiazem Sulfoxide
CAT No: SZ-D029020
CAS No: 370094-12-5
Mol.F. : C22H26N2O5S
Mol.Wt. : 430.5
Inv. Status: Custom Synthesis
SZ-D029020
CAS No:370094-12-5
Mol.F.: C22H26N2O5S 
Mol.Wt.: 430.5
Inv. Status: Custom Synthesis

Deacetyl O-Demethyl Diltiazem

Picture of Deacetyl O-Demethyl Diltiazem
CAT No: SZ-D029021
CAS No: 84903-82-2
Mol.F. : C19H22N2O3S
Mol.Wt. : 358.5
Inv. Status: In Stock
Rel. CAS No : 96252-32-3 (HCl salt)
SZ-D029021
CAS No:84903-82-2
Mol.F.: C19H22N2O3S
Mol.Wt.: 358.5
Inv. Status: In Stock
Rel. CAS No : 96252-32-3 (HCl salt)

Diltiazem N,N-DiDesmethyl TFA Salt

Picture of Diltiazem N,N-DiDesmethyl TFA Salt
CAT No: SZ-D029022
CAS No: NA
Mol.F. : C20H22N2O4S : C2HF3O2
Mol.Wt. : 386.5 : 114.0
Inv. Status: Out of Stock, Custom Synthesis
Rel. CAS No : 115973-28-9 (free base) ; 116050-35-2 (HCl salt)
SZ-D029022
CAS No:NA
Mol.F.: C20H22N2O4S : C2HF3O2
Mol.Wt.: 386.5 : 114.0
Inv. Status: Out of Stock, Custom Synthesis
Rel. CAS No : 115973-28-9 (free base) ; 116050-35-2 (HCl salt)

Desacetyl N, O-Didesmethyl Diltiazem

Picture of Desacetyl N, O-Didesmethyl Diltiazem
CAT No: SZ-D029023
CAS No: 142926-09-8
Mol.F. : C18H20N2O3S : HCl
Mol.Wt. : 344.4 : 36.5
Inv. Status: In Stock
Rel. CAS No : 86408-42-6 (free base)
SZ-D029023
CAS No:142926-09-8
Mol.F.: C18H20N2O3S : HCl
Mol.Wt.: 344.4 : 36.5
Inv. Status: In Stock
Rel. CAS No : 86408-42-6 (free base)

Diltiazem Impurity 1

Picture of Diltiazem Impurity 1
CAT No: SZ-D029024
CAS No: NA
Mol.F. : C19H22N2O3S
Mol.Wt. : 358.5
Inv. Status: Custom Synthesis
SZ-D029024
CAS No:NA
Mol.F.: C19H22N2O3S
Mol.Wt.: 358.5
Inv. Status: Custom Synthesis

N-Acetyl Diltiazem

Picture of N-Acetyl Diltiazem
CAT No: SZ-D029025
CAS No: NA
Mol.F. : C23H26N2O5S
Mol.Wt. : 442.5
Inv. Status: In Stock
SZ-D029025
CAS No:NA
Mol.F.: C23H26N2O5S
Mol.Wt.: 442.5
Inv. Status: In Stock

Desacetyl Diltiazem HCl

Picture of Desacetyl Diltiazem HCl
CAT No: SZ-D029026
CAS No: 75472-91-2
Mol.F. : C20H24N2O3S : HCl
Mol.Wt. : 372.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 42399-40-6 (free base)
SZ-D029026
CAS No:75472-91-2
Mol.F.: C20H24N2O3S : HCl
Mol.Wt.: 372.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 42399-40-6 (free base)

Diltiazem

Picture of Diltiazem
CAT No: SZ-D029027
CAS No: 42399-41-7
Mol.F. : C22H26N2O4S
Mol.Wt. : 414.5
Inv. Status: Custom Synthesis
Rel. CAS No : 33286-22-5 (HCl salt)
SZ-D029027
CAS No:42399-41-7
Mol.F.: C22H26N2O4S
Mol.Wt.: 414.5
Inv. Status: Custom Synthesis
Rel. CAS No : 33286-22-5 (HCl salt)

Diltiazem Sulphone

Picture of Diltiazem Sulphone
CAT No: SZ-D029028
CAS No: NA
Mol.F. : C22H26N2O6S
Mol.Wt. : 446.5
Inv. Status: Custom Synthesis
SZ-D029028
CAS No:NA
Mol.F.: C22H26N2O6S
Mol.Wt.: 446.5
Inv. Status: Custom Synthesis

Diltiazem Sulphone-N-Oxide

Picture of Diltiazem Sulphone-N-Oxide
CAT No: SZ-D029029
CAS No: NA
Mol.F. : C22H26N2O7S
Mol.Wt. : 462.5
Inv. Status: Custom Synthesis
SZ-D029029
CAS No:NA
Mol.F.: C22H26N2O7S
Mol.Wt.: 462.5
Inv. Status: Custom Synthesis

Diltiazem EP Impurity A (HCl salt)

Picture of Diltiazem EP Impurity A (HCl salt)
CAT No: SZ-D029030
CAS No: 103532-27-0
Mol.F. : C22H26N2O4S : HCl
Mol.Wt. : 414.5 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 111188-71-7 (free base)
SZ-D029030
CAS No:103532-27-0
Mol.F.: C22H26N2O4S : HCl
Mol.Wt.: 414.5 : 36.5
Inv. Status: Custom Synthesis
Rel. CAS No : 111188-71-7 (free base)

dl-cis-Diltiazem

Picture of dl-cis-Diltiazem
CAT No: SZ-D029032
CAS No: 56209-45-1
Mol.F. : C22H26N2O4S
Mol.Wt. : 414.5
Inv. Status: Custom Synthesis
Rel. CAS No : 38411-61-9 (HCl salt)
SZ-D029032
CAS No:56209-45-1
Mol.F.: C22H26N2O4S
Mol.Wt.: 414.5
Inv. Status: Custom Synthesis
Rel. CAS No : 38411-61-9 (HCl salt)

Diltiazem Impurity 2

Picture of Diltiazem Impurity 2
CAT No: SZ-D029034
CAS No: NA
Mol.F. : C11H12O4
Mol.Wt. : 208.2
Inv. Status: Custom Synthesis
SZ-D029034
CAS No:NA
Mol.F.: C11H12O4
Mol.Wt.: 208.2
Inv. Status: Custom Synthesis

Diltiazem Impurity 3

Picture of Diltiazem Impurity 3
CAT No: SZ-D029035
CAS No: 96125-49-4
Mol.F. : C11H12O4
Mol.Wt. : 208.2
Inv. Status: Custom Synthesis
SZ-D029035
CAS No:96125-49-4
Mol.F.: C11H12O4
Mol.Wt.: 208.2
Inv. Status: Custom Synthesis

Diltiazem Sulfoxide N-Oxide

Picture of Diltiazem Sulfoxide N-Oxide
CAT No: SZ-D029036
CAS No: NA
Mol.F. : C22H26N2O6S
Mol.Wt. : 446.5
Inv. Status: Custom Synthesis
SZ-D029036
CAS No:NA
Mol.F.: C22H26N2O6S
Mol.Wt.: 446.5
Inv. Status: Custom Synthesis

Diltiazem Trans-(-)-Hydroxy Lactam (S,R-isomer)

Picture of Diltiazem Trans-(-)-Hydroxy Lactam (S,R-isomer)
CAT No: SZ-D029037
CAS No: 132830-16-1
Mol.F. : C16H15NO3S
Mol.Wt. : 301.4
Inv. Status: Custom Synthesis
SZ-D029037
CAS No:132830-16-1
Mol.F.: C16H15NO3S
Mol.Wt.: 301.4
Inv. Status: Custom Synthesis

Diltiazem Impurity 4

Picture of Diltiazem Impurity 4
CAT No: SZ-D029038
CAS No: 42399-51-9
Mol.F. : C16H15NO3S
Mol.Wt. : 301.4
Inv. Status: Custom Synthesis
SZ-D029038
CAS No:42399-51-9
Mol.F.: C16H15NO3S
Mol.Wt.: 301.4
Inv. Status: Custom Synthesis

(R,R)-Diltiazem

Picture of (R,R)-Diltiazem
CAT No: SZ-D029039
CAS No: 75472-92-3
Mol.F. : C22H26N2O4S
Mol.Wt. : 414.5
Inv. Status: Custom Synthesis
Rel. CAS No : 42399-54-2 (HCl salt)
SZ-D029039
CAS No:75472-92-3
Mol.F.: C22H26N2O4S
Mol.Wt.: 414.5
Inv. Status: Custom Synthesis
Rel. CAS No : 42399-54-2 (HCl salt)

Diltiazem Impurity 5

Picture of Diltiazem Impurity 5
CAT No: SZ-D029040
CAS No: 68767-07-7
Mol.F. : C20H24N2O4S
Mol.Wt. : 388.5
Inv. Status: Custom Synthesis
SZ-D029040
CAS No:68767-07-7
Mol.F.: C20H24N2O4S
Mol.Wt.: 388.5
Inv. Status: Custom Synthesis

Stable Isotopes And Metabolites

Diltiazem D4

Picture of Diltiazem D4
CAT No: SZ-D029D01
CAS No: 112259-41-3
Mol.F. : C22H22D4N2O4S
Mol.Wt. : 418.5
Inv. Status: Custom Synthesis
SZ-D029D01
CAS No:112259-41-3
Mol.F.: C22H22D4N2O4S
Mol.Wt.: 418.5
Inv. Status: Custom Synthesis

Diltiazem D6

Picture of Diltiazem D6
CAT No: SZ-D029D02
CAS No: 1242184-41-3
Mol.F. : C22H20D6N2O4S
Mol.Wt. : 420.6
Inv. Status: Custom Synthesis
SZ-D029D02
CAS No:1242184-41-3
Mol.F.: C22H20D6N2O4S
Mol.Wt.: 420.6
Inv. Status: Custom Synthesis

Desacetyl Diltiazem D4

Picture of Desacetyl Diltiazem D4
CAT No: SZ-D029D03
CAS No: 112259-40-2
Mol.F. : C20H20D4N2O3S
Mol.Wt. : 376.5
Inv. Status: Custom Synthesis
SZ-D029D03
CAS No:112259-40-2
Mol.F.: C20H20D4N2O3S
Mol.Wt.: 376.5
Inv. Status: Custom Synthesis

Desacetyl Diltiazem D6

Picture of Desacetyl Diltiazem D6
CAT No: SZ-D029D04
CAS No: 1246820-35-8
Mol.F. : C20H18D6N2O3S
Mol.Wt. : 378.5
Inv. Status: Custom Synthesis
SZ-D029D04
CAS No:1246820-35-8
Mol.F.: C20H18D6N2O3S
Mol.Wt.: 378.5
Inv. Status: Custom Synthesis

Diltiazem D5

Picture of Diltiazem D5
CAT No: SZ-D029D05
CAS No: 2012598-87-5
Mol.F. : C20H19D5N2O3S
Mol.Wt. : 377.5
Inv. Status: Custom Synthesis
SZ-D029D05
CAS No:2012598-87-5
Mol.F.: C20H19D5N2O3S
Mol.Wt.: 377.5
Inv. Status: Custom Synthesis

Possible Nitroso Standards

N-Nitroso Diltiazem EP Impurity D

Picture of N-Nitroso Diltiazem EP Impurity D
CAT No: SZ-D029031
CAS No: NA
Mol.F. : C21H23N3O5S
Mol.Wt. : 429.5
Inv. Status: In Stock
SZ-D029031
CAS No:NA
Mol.F.: C21H23N3O5S
Mol.Wt.: 429.5
Inv. Status: In Stock

N-Nitroso Diltiazem EP Impurity G

Picture of N-Nitroso Diltiazem EP Impurity G
CAT No: SZ-D029033
CAS No: NA
Mol.F. : C19H21N3O4S
Mol.Wt. : 387.5
Inv. Status: Custom Synthesis
SZ-D029033
CAS No:NA
Mol.F.: C19H21N3O4S
Mol.Wt.: 387.5
Inv. Status: Custom Synthesis