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Diltiazem Related Products

SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Diltiazem, pharmacopeial and non-pharmacopeial Diltiazem impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Diltiazem impurities reference standards are useful in pharmaceutical research. They are useful in product development, ANDA and DMF filing, quality control (QC), method validation, and stability studies. It is also useful in the identification of unknown impurities and the assessment of genotoxic potential.

Diltiazem-related products are thoroughly characterized. Diltiazem products are supplied with detailed COA & analytical data meeting regulatory compliance. We can also provide EP/USP traceable standards based on your requirements. The supplied products are re-tested at regular intervals.

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: NA
Mol.F. : C21H24N2O4S : HCl
Mol.Wt. : 400.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 84903-78-6 (free base) ; 142926-07-6 (HBr salt)
SZ-D029004
CAS No:NA
Mol.F.: C21H24N2O4S : HCl
Mol.Wt.: 400.5 : 36.5
Inv. Status: In Stock
Rel. CAS No : 84903-78-6 (free base) ; 142926-07-6 (HBr salt)

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: In Stock
SZ-D029012
CAS No:142843-04-7
Mol.F.: C22H26N2O5S
Mol.Wt.: 430.5
Inv. Status: In 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)

Diltiazem USP Related Compound H

Picture of Diltiazem USP Related Compound H
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 USP Related Compound G

Picture of Diltiazem USP Related Compound G
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

Diltiazem EP Impurity F (HCl salt)

Picture of Diltiazem EP Impurity F (HCl salt)
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: Under 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: Under 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

Diltiazem Tertiary Amide Impurity

Picture of Diltiazem Tertiary Amide Impurity
CAT No: SZ-D029042
CAS No: NA
Mol.F. : C23H26N2O5S
Mol.Wt. : 442.5
Inv. Status: Custom Synthesis
SZ-D029042
CAS No:NA
Mol.F.: C23H26N2O5S
Mol.Wt.: 442.5
Inv. Status: Custom Synthesis

Diltiazem Formamide Impurity

Picture of Diltiazem Formamide Impurity
CAT No: SZ-D029043
CAS No: 1643948-42-8
Mol.F. : C22H24N2O5S
Mol.Wt. : 428.5
Inv. Status: Custom Synthesis
SZ-D029043
CAS No:1643948-42-8
Mol.F.: C22H24N2O5S
Mol.Wt.: 428.5
Inv. Status: Custom Synthesis

Diltiazem Impurity 6

Picture of Diltiazem Impurity 6
CAT No: SZ-D029044
CAS No: 42245-42-1
Mol.F. : C11H12O4
Mol.Wt. : 208.2
Inv. Status: Custom Synthesis
SZ-D029044
CAS No:42245-42-1
Mol.F.: C11H12O4
Mol.Wt.: 208.2
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

Desacetyl Diltiazem D3

Picture of Desacetyl Diltiazem D3
CAT No: SZ-D029D06
CAS No: 1246815-32-6
Mol.F. : C20H21D3N2O3S
Mol.Wt. : 375.5
Inv. Status: Custom Synthesis
SZ-D029D06
CAS No:1246815-32-6
Mol.F.: C20H21D3N2O3S
Mol.Wt.: 375.5
Inv. Status: Custom Synthesis

N-Demethyl Diltiazem D3

Picture of N-Demethyl Diltiazem D3
CAT No: SZ-D029D07
CAS No: NA
Mol.F. : C21H21D3N2O4S
Mol.Wt. : 403.5
Inv. Status: Custom Synthesis
SZ-D029D07
CAS No:NA
Mol.F.: C21H21D3N2O4S
Mol.Wt.: 403.5
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: In Stock
SZ-D029033
CAS No:NA
Mol.F.: C19H21N3O4S
Mol.Wt.: 387.5
Inv. Status: In Stock