API Name : API Labeled Standards

API Labeled Standards

Venkatasai is a leading provider of pharmaceutical reference standards, specializing in the supply of high-purity API Labeled Standards 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 API Labeled Standards-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.

Tetrabenazine-D6

Picture of Tetrabenazine-D6

CAT No: VS-A186142

CAS No: NA

Mol.F.: C19H21D6NO3

Mol.Wt.: 323.5

Status: In Stock

Tiagabine -D5. HCl

Picture of Tiagabine -D5. HCl

CAT No: VS-A186144

CAS No: 109857-73-0

Mol.F.: C20H21D5ClNO2S2

Mol.Wt.: 417.03

Status: In Stock

Timolol-D9 Maleate

Picture of Timolol-D9 Maleate

CAT No: VS-A186145

CAS No: NA

Mol.F.: C17H19D9N4O7S

Mol.Wt.: 441.55

Status: In Stock

Trandolaprilat-D5

Picture of Trandolaprilat-D5

CAT No: VS-A186146

CAS No: NA

Mol.F.: C22H25D5N2O5

Mol.Wt.: 407.52

Status: In Stock

Ulipristal Acetate-d3

Picture of Ulipristal Acetate-d3

CAT No: VS-A186147

CAS No: 1621894-62-9

Mol.F.: C30H34D3NO4

Mol.Wt.: 478.64

Status: In Stock

Ubrogepant-D5

Picture of Ubrogepant-D5

CAT No: VS-A186148

CAS No: NA

Mol.F.: C29H21D5F3N5O3

Mol.Wt.: 554.58

Status: In Stock

Valsartan D9

Picture of Valsartan D9

CAT No: VS-A186149

CAS No: 1089736-73-1

Mol.F.: C24H20D9N5O3

Mol.Wt.: 444.6

Status: In Stock

Velpatasvir-D3

Picture of Velpatasvir-D3

CAT No: VS-A186150

CAS No: 2172676-06-9

Mol.F.: C49H51D3N8O8

Mol.Wt.: 886.04

Status: In Stock

Venlafaxine-D4

Picture of Venlafaxine-D4

CAT No: VS-A186151

CAS No: NA

Mol.F.: C17H23D4NO2

Mol.Wt.: 281.43

Status: In Stock

Verapamil-d6

Picture of Verapamil-d6

CAT No: VS-A186152

CAS No: 1185193-17-2

Mol.F.: C27D6H32N2O4

Mol.Wt.: 460.63

Status: In Stock

Vericiguat-D3

Picture of Vericiguat-D3

CAT No: VS-A186153

CAS No: NA

Mol.F.: C19H13D3F2N8O2

Mol.Wt.: 429.4

Status: In Stock

Vortioxetine-D8

Picture of Vortioxetine-D8

CAT No: VS-A186154

CAS No: 2140316-62-5

Mol.F.: C18H14D8N2S

Mol.Wt.: 306.49

Status: In Stock

Viloxazine D5

Picture of Viloxazine D5

CAT No: VS-A186155

CAS No: 117320-32-8

Mol.F.: C13H14D5NO3

Mol.Wt.: 242.3

Status: In Stock

Warfarin D5

Picture of Warfarin D5

CAT No: VS-A186156

CAS No: 75472-93-4

Mol.F.: C19H11D5O4

Mol.Wt.: 313.4

Status: In Stock

Zileuton D4

Picture of Zileuton D4

CAT No: VS-A186157

CAS No: 1189878-76-9

Mol.F.: C11H8D4N2O2S

Mol.Wt.: 240.3

Status: In Stock

Vanillin D3

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CAT No: VS-A186160

CAS No: 74495-74-2

Mol.F.: C8H5D3O3

Mol.Wt.: 155.17

Status: In Stock

Terbinafine D3 Hydrochloride

Picture of Terbinafine D3 Hydrochloride

CAT No: VS-A186195

CAS No: 1310012-15-7

Mol.F.: C21H23D3ClN

Mol.Wt.: 330.91

Status: Custom Synthesis

Terbinafine EP Impurity A D3 Hydrochloride

Picture of Terbinafine EP Impurity A D3 Hydrochloride

CAT No: VS-A186196

CAS No: NA

Mol.F.: C12H10D3N : HCl

Mol.Wt.: 174.26 : 36.5

Status: Custom Synthesis

Upadacitinib-d4

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CAT No: VS-A186228

CAS No: NA

Mol.F.: C17H15D4F3N6O

Mol.Wt.: 384.39

Status: Custom Synthesis

Thioctic Acid D5

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CAT No: VS-A186234

CAS No: 1189471-66-6

Mol.F.: C8H9D5O2S2

Mol.Wt.: 211.3

Status: Custom Synthesis

Tigecycline D9

Picture of Tigecycline D9

CAT No: VS-A186236

CAS No: NA

Mol.F.: C29H30D9N5O8

Mol.Wt.: 594.7

Status: Custom Synthesis

Trimethoprim-D3

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CAT No: VS-A186250

CAS No: 1189923-38-3

Mol.F.: C14H15D3N4O3

Mol.Wt.: 293.3

Status: Custom Synthesis

Trimethoprim-D4 (major)

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CAT No: VS-A186251

CAS No: NA

Mol.F.: C15H4D4N2O2

Mol.Wt.: 252.26

Status: Custom Synthesis

Z-Indirubin-D4

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CAT No: VS-A186272

CAS No: NA

Mol.F.: C16H6D4N2O2

Mol.Wt.: 266.29

Status: Custom Synthesis

Z-Indirubin-D8

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CAT No: VS-A186334

CAS No: NA

Mol.F.: C16H2D8N2O2

Mol.Wt.: 270.32

Status: Custom Synthesis

Tizanidine-D4

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CAT No: VS-A186338

CAS No: 1188331-19-2

Mol.F.: C9H4D4ClN5S

Mol.Wt.: 257.7

Status: Custom Synthesis

Tizanidine-D5 Hydrochloride

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CAT No: VS-A186339

CAS No: 1188263-51-5

Mol.F.: C9H4D4ClN5S :HCl

Mol.Wt.: 257.7 : 36.5

Status: Custom Synthesis

Tiotropium D3 Bromide

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CAT No: VS-A186364

CAS No: 1127226-56-5

Mol.F.: C19H19D3NO4S2 : Br

Mol.Wt.: 395.5 : 79.9

Status: Custom Synthesis

Triamcinolone Acetonide D6

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CAT No: VS-A186365

CAS No: 352431-33-5

Mol.F.: C24H25D6FO6

Mol.Wt.: 440.5

Status: Custom Synthesis

Verapamil-D7 Hydrochloride

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CAT No: VS-A186370

CAS No: 1188265-55-5

Mol.F.: C27H32D7ClN2O4

Mol.Wt.: 498.11

Status: Custom Synthesis

Ursodeoxycholic Acid D4

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CAT No: VS-A186382

CAS No: 347841-46-7

Mol.F.: C24H36D4O4

Mol.Wt.: 396.6

Status: Custom Synthesis

Tert-Butanol-D9

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CAT No: VS-A186446

CAS No: 25725-11-5

Mol.F.: C4HD9O

Mol.Wt.: 83.18

Status: Custom Synthesis

Veratric Acid D6

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CAT No: VS-A186455

CAS No: 1162658-12-9

Mol.F.: C9H4D6O4

Mol.Wt.: 188.2

Status: Custom Synthesis

Vonoprazan Fumarate-D3

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CAT No: VS-A186457

CAS No: NA

Mol.F.: C21H17D3FN3O6S

Mol.Wt.: 464.48

Status: Custom Synthesis

Veratraldehyde-D3

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CAT No: VS-A186459

CAS No: 143318-06-3

Mol.F.: C9H7D3O3

Mol.Wt.: 169.19

Status: Custom Synthesis

Zafirlukast p-Tolyl Isomer-d7

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CAT No: VS-A186469

CAS No: 1794886-13-7

Mol.F.: C31H26D7N3O6S

Mol.Wt.: 582.7

Status: Custom Synthesis

Vanilloside-D3

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CAT No: VS-A186480

CAS No: NA

Mol.F.: C14H15D3O8

Mol.Wt.: 317.31

Status: Custom Synthesis

Tert-Butyl-D9-Amine

Picture of Tert-Butyl-D9-Amine

CAT No: VS-A186505

CAS No: 6045-08-5

Mol.F.: C4H2D9N

Mol.Wt.: 82.19

Status: Custom Synthesis

Trimethyl Phosphate-d9

Picture of Trimethyl Phosphate-d9

CAT No: VS-A186513

CAS No: 32176-12-8

Mol.F.: C3D9O4P

Mol.Wt.: 149.13

Status: Custom Synthesis

Urethane-d5

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CAT No: VS-A186517

CAS No: 73962-07-9

Mol.F.: C3H2D5NO2

Mol.Wt.: 94.12

Status: Custom Synthesis

XMC-D3

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CAT No: VS-A186531

CAS No: NA

Mol.F.: C10H10D3NO2

Mol.Wt.: 182.23

Status: Custom Synthesis

Vitavax-D5

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CAT No: VS-A186567

CAS No: NA

Mol.F.: C12H8D5NO2S

Mol.Wt.: 240.33

Status: Custom Synthesis

Trifloxystrobin-d3

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CAT No: VS-A186580

CAS No: NA

Mol.F.: C20H16D3F3N2O4

Mol.Wt.: 411.39

Status: Custom Synthesis

Tricaine-d5 methanesulfonate

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CAT No: VS-A186582

CAS No: NA

Mol.F.: C10H10D5NO5S

Mol.Wt.: 266.33

Status: Custom Synthesis

Terbutaline D9

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CAT No: VS-A186629

CAS No: 1189658-09-0

Mol.F.: C12H10D9NO3

Mol.Wt.: 234.3

Status: Custom Synthesis

Quality Assurance

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Contact

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E-Mail

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