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Tacrolimus Related Products


SynZeal is a leading innovator in pharmaceutical reference standards. We supply high-quality Reference Standards of Tacrolimus, pharmacopeial and non-pharmacopeial Tacrolimus impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Tacrolimus 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.

Tacrolimus-related products are thoroughly characterized. Tacrolimus 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

Tacrolimus Dehydro Impurity

Picture of Tacrolimus Dehydro Impurity
SZ CAT No:: SZ-T005013
CAS No: 129212-37-9
Mol.F.: C44H67NO11
Mol.Wt.: 786.0
Inv. Status: In Stock

Tacrolimus EP Impurity A

Picture of Tacrolimus EP Impurity A
SZ CAT No:: SZ-T005026
CAS No: 104987-12-4
Mol.F.: C43H69NO12
Mol.Wt.: 792.0
Inv. Status: In Stock
Rel. CAT No: SZ-A033001 ,

Tacrolimus EP Impurity D

Picture of Tacrolimus EP Impurity D
SZ CAT No:: SZ-T005004
CAS No: 129212-35-7
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: In Stock

Tacrolimus EP Impurity E

Picture of Tacrolimus EP Impurity E
SZ CAT No:: SZ-T005002
CAS No: 104987-30-6
Mol.F.: C44H71NO12
Mol.Wt.: 806.0
Inv. Status: In Stock

Tacrolimus EP Impurity H

Picture of Tacrolimus EP Impurity H
SZ CAT No:: SZ-T005030
CAS No: 143210-33-7
Mol.F.: C43H69NO11
Mol.Wt.: 776.0
Inv. Status: In Stock

Tacrolimus EP Impurity I

Picture of Tacrolimus EP Impurity I
SZ CAT No:: SZ-T005003
CAS No: 104987-16-8
Mol.F.: C44H67NO11
Mol.Wt.: 786.0
Inv. Status: In Stock

Tacrolimus Hydrate

Picture of Tacrolimus Hydrate
SZ CAT No:: SZ-T005001
CAS No: 109581-93-3
Mol.F.: C44H69NO12 : H2O
Mol.Wt.: 804.0 : 18.0
Inv. Status: In Stock
Rel. CAS No: 104987-11-3 (free base)

Tacrolimus Hydroxy Acid Impurity

Picture of Tacrolimus Hydroxy Acid Impurity
SZ CAT No:: SZ-T005006
CAS No: 1700657-83-5
Mol.F.: C44H71NO13
Mol.Wt.: 822.0
Inv. Status: In Stock

Tacrolimus Impurity 1

Picture of Tacrolimus Impurity 1
SZ CAT No:: SZ-T005015
CAS No: 123719-19-7
Mol.F.: C43H69NO11
Mol.Wt.: 776.0
Inv. Status: In Stock

Tacrolimus Methyl Acryl Aldehyde Impurity

Picture of Tacrolimus Methyl Acryl Aldehyde Impurity
SZ CAT No:: SZ-T005014
CAS No: 109466-74-2
Mol.F.: C11H18O3
Mol.Wt.: 198.3
Inv. Status: In Stock

Tacrolimus Regioisomer

Picture of Tacrolimus Regioisomer
SZ CAT No:: SZ-T005005
CAS No: 131944-48-4
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: In Stock

13-O-Desmethyl tacrolimus

Picture of 13-O-Desmethyl tacrolimus
SZ CAT No:: SZ-T005051
CAS No: 139958-51-3
Mol.F.: C43H67NO12
Mol.Wt.: 790.0
Inv. Status: Custom Synthesis

Tacrolimus

Picture of Tacrolimus
SZ CAT No:: SZ-T005042
CAS No: 104987-11-3
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis
Rel. CAS No: 109581-93-3 (Hydrate)

Tacrolimus 21-Carboxylic Acid Impurity (USP)

Picture of Tacrolimus 21-Carboxylic Acid Impurity (USP)
SZ CAT No:: SZ-T005010
CAS No: NA
Mol.F.: C44H71NO13
Mol.Wt.: 822.1
Inv. Status: Custom Synthesis

Tacrolimus C4-epimer Diene

Picture of Tacrolimus C4-epimer Diene
SZ CAT No:: SZ-T005046
CAS No: NA
Mol.F.: C44H67NO11
Mol.Wt.: 786.0
Inv. Status: Custom Synthesis

Tacrolimus Delta Lactone

Picture of Tacrolimus Delta Lactone
SZ CAT No:: SZ-T005043
CAS No: 1026775-21-2
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Tacrolimus EP Impurity B

Picture of Tacrolimus EP Impurity B
SZ CAT No:: SZ-T005027
CAS No: NA
Mol.F.: C43H69NO12
Mol.Wt.: 792.0
Inv. Status: Custom Synthesis

Tacrolimus EP Impurity C

Picture of Tacrolimus EP Impurity C
SZ CAT No:: SZ-T005028
CAS No: NA
Mol.F.: C43H67NO12
Mol.Wt.: 790.0
Inv. Status: Custom Synthesis

Tacrolimus EP Impurity F

Picture of Tacrolimus EP Impurity F
SZ CAT No:: SZ-T005029
CAS No: NA
Mol.F.: C43H67NO12
Mol.Wt.: 790.0
Inv. Status: Custom Synthesis

Tacrolimus EP Impurity G

Picture of Tacrolimus EP Impurity G
SZ CAT No:: SZ-T005008
CAS No: 144490-63-1
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 10

Picture of Tacrolimus Impurity 10
SZ CAT No:: SZ-T005048
CAS No: 157141-17-8
Mol.F.: C42H65NO12
Mol.Wt.: 776.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 11

Picture of Tacrolimus Impurity 11
SZ CAT No:: SZ-T005049
CAS No: 212050-30-1
Mol.F.: C42H65NO12
Mol.Wt.: 776.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 12

Picture of Tacrolimus Impurity 12
SZ CAT No:: SZ-T005050
CAS No: 160892-64-8
Mol.F.: C43H67NO14
Mol.Wt.: 822.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 13

Picture of Tacrolimus Impurity 13
SZ CAT No:: SZ-T005052
CAS No: NA
Mol.F.: C45H71NO12
Mol.Wt.: 818.1
Inv. Status: Custom Synthesis

Tacrolimus Impurity 3

Picture of Tacrolimus Impurity 3
SZ CAT No:: SZ-T005034
CAS No: NA
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 4

Picture of Tacrolimus Impurity 4
SZ CAT No:: SZ-T005035
CAS No: NA
Mol.F.: C43H65NO12
Mol.Wt.: 788.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 6

Picture of Tacrolimus Impurity 6
SZ CAT No:: SZ-T005040
CAS No: NA
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 7

Picture of Tacrolimus Impurity 7
SZ CAT No:: SZ-T005041
CAS No: NA
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity 8

Picture of Tacrolimus Impurity 8
SZ CAT No:: SZ-T005044
CAS No: NA
Mol.F.: C46H75NO14
Mol.Wt.: 866.1
Inv. Status: Custom Synthesis

Tacrolimus Impurity 9

Picture of Tacrolimus Impurity 9
SZ CAT No:: SZ-T005047
CAS No: NA
Mol.F.: C45H73NO13
Mol.Wt.: 836.1
Inv. Status: Custom Synthesis

Tacrolimus Impurity I

Picture of Tacrolimus Impurity I
SZ CAT No:: SZ-T005016
CAS No: 135821-69-1
Mol.F.: C44H71NO12
Mol.Wt.: 806.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity VII

Picture of Tacrolimus Impurity VII
SZ CAT No:: SZ-T005037
CAS No: NA
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Tacrolimus Impurity X

Picture of Tacrolimus Impurity X
SZ CAT No:: SZ-T005023
CAS No: 127285-26-1
Mol.F.: C11H18O3
Mol.Wt.: 198.3
Inv. Status: Custom Synthesis

Tacrolimus Impurity XVI

Picture of Tacrolimus Impurity XVI
SZ CAT No:: SZ-T005031
CAS No: NA
Mol.F.: C44H71NO13
Mol.Wt.: 822.0
Inv. Status: Custom Synthesis

Tacrolimus Lactone Isomer

Picture of Tacrolimus Lactone Isomer
SZ CAT No:: SZ-T005045
CAS No: 134590-88-8
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Tacrolimus Ring-Opening Impurity

Picture of Tacrolimus Ring-Opening Impurity
SZ CAT No:: SZ-T005007
CAS No: 1393890-33-9
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status: Custom Synthesis

Desmethyl Tacrolimus (USP)

Picture of Desmethyl Tacrolimus (USP)
SZ CAT No:: SZ-T005009
CAS No: 132172-14-6
Mol.F.: C43H67NO12
Mol.Wt.: 790.0
Inv. Status: Discontinue

Tacrolimus Alcohol Adduct

Picture of Tacrolimus Alcohol Adduct
SZ CAT No:: SZ-T005056
CAS No: NA
Mol.F.: C45H73NO13
Mol.Wt.: 836.1
Inv. Status:

Tacrolimus Impurity 14

Picture of Tacrolimus Impurity 14
SZ CAT No:: SZ-T005054
CAS No: NA
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status:

Tacrolimus Impurity 15

Picture of Tacrolimus Impurity 15
SZ CAT No:: SZ-T005055
CAS No: NA
Mol.F.: C44H69NO12
Mol.Wt.: 804.0
Inv. Status:

Tacrolimus Open Ring Impurity (USP)

Picture of Tacrolimus Open Ring Impurity (USP)
SZ CAT No:: SZ-T005011
CAS No: 144432-23-5
Mol.F.: C44H71NO13
Mol.Wt.: 822.0
Inv. Status: Discontinue

Stable Isotopes and Metabolites

Tacrolimus-13C,D2

Picture of Tacrolimus-13C,D2
SZ CAT No:: SZ-T005D01
CAS No: 1356841-89-8
Mol.F.: C4313CH67D2NO12
Mol.Wt.: 807.0
Inv. Status: Custom Synthesis

Tacrolimus-13C,D4

Picture of Tacrolimus-13C,D4
SZ CAT No:: SZ-T005D02
CAS No: NA
Mol.F.: C4313CH65D4NO12
Mol.Wt.: 809.0
Inv. Status: Custom Synthesis

13-O-Desmethyl Tacrolimus-13CD4

Picture of 13-O-Desmethyl Tacrolimus-13CD4
SZ CAT No:: SZ-T005D03
CAS No: NA
Mol.F.: C4213CH63D4NO12
Mol.Wt.: 795.0
Inv. Status:

Possible Nitroso Standards

Tacrolimus 21-Carboxylic Acid Nitroso Impurity

Picture of Tacrolimus 21-Carboxylic Acid Nitroso Impurity
SZ CAT No:: SZ-T005053
CAS No: NA
Mol.F.: C44H70N2O14
Mol.Wt.: 851.0
Inv. Status: Custom Synthesis
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