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Tadalafil
Venkatasai is a leading provider of pharmaceutical reference standards, specializing in the supply of high-purity Tadalafil reference materials. Our portfolio includes both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope-labeled compounds, and nitrosamine derivatives (N-NO products). These reference standards play a crucial role in pharmaceutical R&D, aiding in formulation development, ANDA/DMF submissions, quality control, method validation, stability studies, and impurity profiling—including the identification and assessment of potentially genotoxic impurities.
Each Tadalafil-related product is rigorously characterized and delivered with a detailed Certificate of Analysis (COA) and comprehensive analytical data to ensure regulatory compliance. Upon request, we also offer EP/USP traceable standards. To maintain the highest quality standards, all materials are subject to periodic re-testing and continuous quality monitoring.
Tadalafil EP Impurity A
CAT No: VS-T002001
CAS No: 171596-27-3
Mol.F.: C22H19N3O4
Mol.Wt.: 389.4
Status: In Stock
Tadalafil EP Impurity B
CAT No: VS-T002002
CAS No: 629652-72-8
Mol.F.: C22H19N3O4
Mol.Wt.: 389.4
Status: Limited Stock
Tadalafil EP Impurity C
CAT No: VS-T002003
CAS No: N/A
Mol.F.: C22H19N3O4 : HCl : 3H2O
Mol.Wt.: 389.4 : 36.5 : 3(18.0)
Status: Custom Synthesis
Tadalafil EP Impurity D
CAT No: VS-T002004
CAS No: N/A
Mol.F.: C22H19N3O6
Mol.Wt.: 421.4
Status: Custom Synthesis
Tadalafil EP Impurity E
CAT No: VS-T002005
CAS No: 1978322-99-4
Mol.F.: C22H19N3O6
Mol.Wt.: 421.4
Status: Custom Synthesis
Tadalafil EP Impurity F
CAT No: VS-T002006
CAS No: N/A
Mol.F.: C22H19N3O6
Mol.Wt.: 421.4
Status: Custom Synthesis
Tadalafil EP Impurity G
CAT No: VS-T002007
CAS No: 2520114-46-7
Mol.F.: C22H17N3O5
Mol.Wt.: 403.4
Status: Custom Synthesis
Tadalafil EP Impurity H
CAT No: VS-T002008
CAS No: 1978322-98-3
Mol.F.: C22H19N3O6
Mol.Wt.: 421.4
Status: Custom Synthesis
Tadalafil EP Impurity I
CAT No: VS-T002009
CAS No: 2378614-29-8
Mol.F.: C22H19N3O5
Mol.Wt.: 405.4
Status: Custom Synthesis
Tadalafil EP Impurity A & C Mixture
CAT No: VS-T002010
CAS No: N/A
Mol.F.: C22H19N3O4
Mol.Wt.: 389.4
Status: Custom Synthesis
Tadalafil N-Desmethyl N-Amino Impurity
CAT No: VS-T002011
CAS No: 1093940-69-2
Mol.F.: C21H18N4O4
Mol.Wt.: 390.3
Status: Custom Synthesis
Tadalafil Chloroacetyle Impurity
CAT No: VS-T002012
CAS No: 171489-59-1
Mol.F.: C22H19ClN2O5
Mol.Wt.: 426.9
Status: Custom Synthesis
Tadalafil Intermediate 1
CAT No: VS-T002013
CAS No: 14907-27-8
Mol.F.: C12H14N2O2 : HCl
Mol.Wt.: 218.3 : 36.5
Status: Custom Synthesis
Tadalafil Impurity 1
CAT No: VS-T002014
CAS No: 171596-41-1
Mol.F.: C20H18N2O4
Mol.Wt.: 350.4
Status: In Stock
Tadalafil Impurity 2
CAT No: VS-T002015
CAS No: 171596-43-3
Mol.F.: C20H18N2O4
Mol.Wt.: 350.4
Status: Custom Synthesis
Tadalafil Impurity 3
CAT No: VS-T002016
CAS No: 2520114-84-3
Mol.F.: C21H19N3O4
Mol.Wt.: 377.4
Status: Custom Synthesis
Tadalafil Impurity 4
CAT No: VS-T002017
CAS No: N/A
Mol.F.: C21H19N3O4
Mol.Wt.: 377.4
Status: Custom Synthesis
Tadalafil Impurity 5
CAT No: VS-T002018
CAS No: 1797099-86-5
Mol.F.: C21H19N3O4
Mol.Wt.: 377.4
Status: Custom Synthesis
Tadalafil Impurity 6
CAT No: VS-T002019
CAS No: 20850-43-5
Mol.F.: C8H7ClO2
Mol.Wt.: 170.6
Status: Custom Synthesis
Tadalafil Impurity 7
CAT No: VS-T002020
CAS No: 749864-17-3
Mol.F.: C20H18N2O4
Mol.Wt.: 350.4
Status: Custom Synthesis
Tadalafil Impurity 8
CAT No: VS-T002021
CAS No: N/A
Mol.F.: C24H20ClN3O5
Mol.Wt.: 465.9
Status: Custom Synthesis
Tadalafil Impurity 9
CAT No: VS-T002022
CAS No: 7797-83-3
Mol.F.: C8H6O3
Mol.Wt.: 150.1
Status: Custom Synthesis
Tadalafil Impurity 10
CAT No: VS-T002023
CAS No: 495-76-1
Mol.F.: C8H8O3
Mol.Wt.: 152.1
Status: Custom Synthesis
Tadalafil Impurity 11
CAT No: VS-T002024
CAS No: 769-30-2
Mol.F.: C8H8O3
Mol.Wt.: 152.1
Status: Custom Synthesis
Tadalafil Impurity 12
CAT No: VS-T002025
CAS No: 326-61-4
Mol.F.: C10H10O4
Mol.Wt.: 194.2
Status: Custom Synthesis
Tadalafil Impurity 13
CAT No: VS-T002026
CAS No: N/A
Mol.F.: C24H20Cl2N2O6
Mol.Wt.: 503.3
Status: Custom Synthesis
Tadalafil Impurity 14
CAT No: VS-T002027
CAS No: N/A
Mol.F.: C22H21N3O5
Mol.Wt.: 407.4
Status: Custom Synthesis
Tadalafil Impurity C
CAT No: VS-T002028
CAS No: 171596-28-4
Mol.F.: C22H19N3O4
Mol.Wt.: 389.4
Status: Custom Synthesis
(1S,3R)-1-Benzo[1,3]dioxol-5-yl-2-(2-chloro-acetyl)-2,3,4,9-tetrahydro-1H-b-carboline-3-carboxylic Acid Methyl Ester
![Picture of (1S,3R)-1-Benzo[1,3]dioxol-5-yl-2-(2-chloro-acetyl)-2,3,4,9-tetrahydro-1H-b-carboline-3-carboxylic Acid Methyl Ester](https://venkatasailifesciences.com/content/images/thumbs/0027688_1s3r-1-benzo13dioxol-5-yl-2-2-chloro-acetyl-2349-tetrahydro-1h-b-carboline-3-carboxylic-acid-methyl-_350.png "Show details for (1S,3R)-1-Benzo[1,3]dioxol-5-yl-2-(2-chloro-acetyl)-2,3,4,9-tetrahydro-1H-b-carboline-3-carboxylic Acid Methyl Ester")
CAT No: VS-T002029
CAS No: 629652-40-0
Mol.F.: C22H19ClN2O5
Mol.Wt.: 426.85
Status: Custom Synthesis
(1S,3R)-Methyl 1-(benzo[d][1,3]dioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate
![Picture of (1S,3R)-Methyl 1-(benzo[d][1,3]dioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate](https://venkatasailifesciences.com/content/images/thumbs/0027689_1s3r-methyl-1-benzod13dioxol-5-yl-2349-tetrahydro-1h-pyrido34-bindole-3-carboxylate_350.png "Show details for (1S,3R)-Methyl 1-(benzo[d][1,3]dioxol-5-yl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indole-3-carboxylate")
CAT No: VS-T002030
CAS No: 171596-42-2
Mol.F.: C20H18N2O4
Mol.Wt.: 350.37
Status: Custom Synthesis
Tadalafil N-Desmethyl N-Amino Impurity
CAT No: VS-T002031
CAS No: 385769-84-6
Mol.F.: C₂₁H₁₈N₄O₄
Mol.Wt.: 390.39
Status: Custom Synthesis
Nor-Tadalafil
CAT No: VS-T002032
CAS No: 171596-36-4
Mol.F.: C21H17N3O4
Mol.Wt.: 375.4
Status: Custom Synthesis
Tadalafil Impurity 15
CAT No: VS-T002033
CAS No: 2169996-11-4
Mol.F.: C24H25N3O5
Mol.Wt.: 435.5
Status: Custom Synthesis
N-Nitroso Tadalafil Chloroacetyl Impurity
CAT No: VS-T002034
CAS No: N/A
Mol.F.: C22H18ClN3O6
Mol.Wt.: 455.9
Status: Custom Synthesis
Tadalafil Nitroso Impurity 1
CAT No: VS-T002035
CAS No: N/A
Mol.F.: C12H13N3O3
Mol.Wt.: 247.3
Status: Custom Synthesis
Tadalafil Nitroso Impurity 2
CAT No: VS-T002036
CAS No: N/A
Mol.F.: C20H17N3O5
Mol.Wt.: 379.4
Status: Custom Synthesis
Tadalafil Nitroso Impurity 3
CAT No: VS-T002037
CAS No: N/A
Mol.F.: C20H16N4O6
Mol.Wt.: 408.4
Status: Custom Synthesis
Tadalafil Nitroso Impurity 4
CAT No: VS-T002038
CAS No: N/A
Mol.F.: C20H17N3O5
Mol.Wt.: 379.4
Status: Custom Synthesis
Tadalafil Impurity 16
CAT No: VS-T002039
CAS No: 2058231-08-4
Mol.F.: C21H17ClN2O5
Mol.Wt.: 412.8
Status: Custom Synthesis
Tadalafil Acid Impurity
CAT No: VS-T002040
CAS No: 474668-76-3
Mol.F.: C19H16N2O4 : HCl
Mol.Wt.: 336.3 : 36.5
Status: Custom Synthesis
N-Nitroso Tadalafil
CAT No: VS-T002041
CAS No: N/A
Mol.F.: C22H18N4O5
Mol.Wt.: 418.41
Status: Custom Synthesis
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