Linagliptin Related Products 
Venkatasai is a leading innovator in the field of pharmaceutical reference standards, offering high-quality Reference Standards of Abacavir, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope-labeled compounds, and nitrosamines (N-NO products). Our Abacavir impurity reference standards play a vital role in pharmaceutical research, supporting product development, ANDA and DMF filings, quality control (QC), method validation, and stability studies. They are also instrumental in identifying unknown impurities and evaluating genotoxic potential. All Abacavir-related products are thoroughly characterized and supplied with comprehensive Certificates of Analysis (COA) and analytical data that comply with regulatory standards. EP/USP traceable standards can also be provided upon request. Furthermore, all supplied products undergo periodic re-testing to ensure continued quality and reliability.
Linagliptin N,N’-Methylene Dimer
CAT No: VS-L045030
CAS No: 2489212-72-6
Mol.F.: C51H56N16O4
Mol.Wt.: 957.1
Status: Custom Synthesis
1-(2-Aminophenyl)ethanone
CAT No: VS-L045017
CAS No: 551-93-9
Mol.F.: C8H9NO
Mol.Wt.: 135.2
Status: Custom Synthesis
2-(Chloro methyl)quinazoline
CAT No: VS-L045016
CAS No: 6148-18-1
Mol.F.: C9H7ClN2
Mol.Wt.: 178.6
Status: In Stock
Hydroxy Methyl Linagliptin
CAT No: VS-L045020
CAS No: N/A
Mol.F.: C27H34N8O3
Mol.Wt.: 518.6
Status: Custom Synthesis
Linagliptin 2-Chloromethyl Impurity
CAT No: VS-L045015
CAS No: 109113-72-6
Mol.F.: C10H9ClN2
Mol.Wt.: 192.7
Status: Custom Synthesis
Linagliptin 8-Bromo Impurity
CAT No: VS-L045111
CAS No: 93703-24-3
Mol.F.: C6H5BrN4O2
Mol.Wt.: 245.0
Status: Custom Synthesis
Linagliptin Bromo Impurity
CAT No: VS-L045019
CAS No: 1446263-39-3
Mol.F.: C25H29BrN8O2
Mol.Wt.: 553.5
Status: Custom Synthesis
Linagliptin butyl Impurity
CAT No: VS-L045092
CAS No: 586408-08-4
Mol.F.: C10H10N4O2
Mol.Wt.: 218.2
Status: Custom Synthesis
Linagliptin D3
CAT No: VS-L045089
CAS No: 1398044-48-8
Mol.F.: C25H25D3N8O2
Mol.Wt.: 475.6
Status: Custom Synthesis
Linagliptin D4
CAT No: VS-L045093
CAS No: 2140263-92-7
Mol.F.: C25H24D4N8O2
Mol.Wt.: 476.6
Status: Custom Synthesis
Linagliptin Diene Impurity
CAT No: VS-L045024
CAS No: 2463617-43-6
Mol.F.: C25H28N8O2
Mol.Wt.: 472.6
Status: In Stock
Linagliptin Dimer Impurity
CAT No: VS-L045023
CAS No: 2463617-49-2
Mol.F.: C51H56N16O4
Mol.Wt.: 957.1
Status: In Stock
Linagliptin Dimer Impurity 1
CAT No: VS-L045025
CAS No: N/A
Mol.F.: C52H59N17O4
Mol.Wt.: 986.2
Status: Custom Synthesis
Linagliptin Dimer Impurity 2
CAT No: VS-L045026
CAS No: 1418133-47-7
Mol.F.: C50H56N16O4
Mol.Wt.: 945.1
Status: Custom Synthesis
Linagliptin Dimer Impurity 3
CAT No: VS-L045027
CAS No: N/A
Mol.F.: C52H60N16O4
Mol.Wt.: 973.2
Status: Custom Synthesis
Linagliptin Dimer Impurity 4
CAT No: VS-L045028
CAS No: N/A
Mol.F.: C52H58N16O4
Mol.Wt.: 971.1
Status: Custom Synthesis
Linagliptin Dimer Impurity 5
CAT No: VS-L045029
CAS No: N/A
Mol.F.: C60H62N18O4
Mol.Wt.: 1099.3
Status: Custom Synthesis
Linagliptin Dimer Impurity 6
CAT No: VS-L045077
CAS No: 1643364-41-3
Mol.F.: C54H62N16O4
Mol.Wt.: 999.17
Status: Custom Synthesis
Linagliptin Impurity 1
CAT No: VS-L045031
CAS No: N/A
Mol.F.: C23H26N8O4
Mol.Wt.: 478.5
Status: Custom Synthesis
Linagliptin Impurity 10
CAT No: VS-L045033
CAS No: N/A
Mol.F.: C31H38N8O7
Mol.Wt.: 634.7
Status: In Stock
Linagliptin Impurity 12
CAT No: VS-L045041
CAS No: N/A
Mol.F.: C31H38N8O7
Mol.Wt.: 634.7
Status: Custom Synthesis
Linagliptin Impurity 13
CAT No: VS-L045042
CAS No: 2279114-31-5
Mol.F.: C20H18BrN5O4
Mol.Wt.: 472.3
Status: Custom Synthesis
Linagliptin impurity 16
CAT No: VS-L045045
CAS No: 1911621-52-7
Mol.F.: C20H18N6O2
Mol.Wt.: 374.4
Status: Custom Synthesis
Linagliptin Impurity 18
CAT No: VS-L045046
CAS No: 1646355-34-1
Mol.F.: C22H23N7O2
Mol.Wt.: 417.5
Status: Custom Synthesis
Linagliptin Impurity 2
CAT No: VS-L045032
CAS No: N/A
Mol.F.: C25H26N8O3
Mol.Wt.: 486.5
Status: Custom Synthesis
Linagliptin Impurity 20
CAT No: VS-L045047
CAS No: 2514949-81-4
Mol.F.: C20H28N4O2
Mol.Wt.: 356.5
Status: Custom Synthesis
Linagliptin Impurity 21
CAT No: VS-L045048
CAS No: 666816-91-7
Mol.F.: C20H28N6O4
Mol.Wt.: 416.5
Status: Custom Synthesis
Linagliptin Impurity 22
CAT No: VS-L045049
CAS No: 2518331-40-1
Mol.F.: C24H32N6O4
Mol.Wt.: 468.6
Status: Custom Synthesis
Linagliptin Impurity 23
CAT No: VS-L045050
CAS No: N/A
Mol.F.: C26H32N8O4
Mol.Wt.: 520.6
Status: Custom Synthesis
Linagliptin Impurity 24
CAT No: VS-L045051
CAS No: N/A
Mol.F.: C11H24N4
Mol.Wt.: 212.3
Status: Custom Synthesis
Linagliptin Impurity 25
CAT No: VS-L045052
CAS No: N/A
Mol.F.: C25H28N8O2
Mol.Wt.: 472.6
Status: Custom Synthesis
Linagliptin Impurity 26
CAT No: VS-L045053
CAS No: N/A
Mol.F.: C25H28N8O2
Mol.Wt.: 472.6
Status: Custom Synthesis
Linagliptin Impurity 28
CAT No: VS-L045055
CAS No: N/A
Mol.F.: C20H19BrN6O2
Mol.Wt.: 455.3
Status: Custom Synthesis
Linagliptin Impurity 29
CAT No: VS-L045056
CAS No: N/A
Mol.F.: C20H19BrN6O2
Mol.Wt.: 455.3
Status: Custom Synthesis
Linagliptin Impurity 3
CAT No: VS-L045112
CAS No: 668269-51-0
Mol.F.: C25H28N8O2
Mol.Wt.: 472.54
Status: Custom Synthesis
Linagliptin Impurity 30
CAT No: VS-L045057
CAS No: 1573118-33-8
Mol.F.: C34H32N8O4
Mol.Wt.: 616.7
Status: Custom Synthesis
Linagliptin Impurity 31
CAT No: VS-L045058
CAS No: N/A
Mol.F.: C30H36N8O3
Mol.Wt.: 556.7
Status: Custom Synthesis
Linagliptin Impurity 32
CAT No: VS-L045059
CAS No: 853029-57-9
Mol.F.: C20H17BrN6O2
Mol.Wt.: 453.3
Status: Custom Synthesis
Linagliptin Impurity 33
CAT No: VS-L045060
CAS No: 1339955-47-3
Mol.F.: C22H26N8O2
Mol.Wt.: 434.5
Status: Custom Synthesis
Linagliptin Impurity 34
CAT No: VS-L045061
CAS No: 2074688-84-7
Mol.F.: C22H23N7O3
Mol.Wt.: 433.5
Status: Custom Synthesis
Linagliptin Impurity 35
CAT No: VS-L045062
CAS No: 2443735-53-1
Mol.F.: C38H42N10O4
Mol.Wt.: 702.8
Status: Custom Synthesis
Linagliptin Impurity 36
CAT No: VS-L045063
CAS No: 2074688-82-5
Mol.F.: C58H58N16O6
Mol.Wt.: 1075.2
Status: Custom Synthesis
Linagliptin Impurity 37
CAT No: VS-L045064
CAS No: 2074688-81-4
Mol.F.: C33H32N8O5
Mol.Wt.: 620.7
Status: Custom Synthesis
Linagliptin Impurity 38
CAT No: VS-L045065
CAS No: 13535-91-6
Mol.F.: C10H10N2O
Mol.Wt.: 174.2
Status: Custom Synthesis
Linagliptin Impurity 39
CAT No: VS-L045066
CAS No: 6972-77-6
Mol.F.: C5H7N3O2
Mol.Wt.: 141.1
Status: Custom Synthesis
Linagliptin Impurity 4
CAT No: VS-L045034
CAS No: N/A
Mol.F.: C35H36N10O2
Mol.Wt.: 628.7
Status: Custom Synthesis
Linagliptin Impurity 40
CAT No: VS-L045067
CAS No: 6972-78-7
Mol.F.: C5H6N4O3
Mol.Wt.: 170.1
Status: Custom Synthesis
Linagliptin Impurity 41
CAT No: VS-L045068
CAS No: 622-31-1
Mol.F.: C7H7NO
Mol.Wt.: 121.1
Status: Custom Synthesis
Linagliptin Impurity 42
CAT No: VS-L045069
CAS No: N/A
Mol.F.: C25H30N8O3
Mol.Wt.: 490.6
Status: Custom Synthesis
Linagliptin Impurity 43
CAT No: VS-L045070
CAS No: 1807608-59-8
Mol.F.: C25H28N8O3
Mol.Wt.: 488.6
Status: Custom Synthesis
Linagliptin Impurity 44
CAT No: VS-L045071
CAS No: 1791405-13-4
Mol.F.: C15H20N6O2
Mol.Wt.: 316.4
Status: Custom Synthesis
Linagliptin Impurity 45
CAT No: VS-L045072
CAS No: N/A
Mol.F.: C26H32N8O3
Mol.Wt.: 504.6
Status: Custom Synthesis
Linagliptin Impurity 46
CAT No: VS-L045073
CAS No: N/A
Mol.F.: C26H30N8O2
Mol.Wt.: 486.6
Status: Custom Synthesis
Linagliptin Impurity 47
CAT No: VS-L045074
CAS No: N/A
Mol.F.: C25H28N8O3
Mol.Wt.: 488.6
Status: Custom Synthesis
Linagliptin Impurity 48
CAT No: VS-L045075
CAS No: 309956-78-3
Mol.F.: C10H20N2O2
Mol.Wt.: 200.3
Status: Custom Synthesis
Linagliptin Impurity 49
CAT No: VS-L045076
CAS No: 2468656-63-3
Mol.F.: C21H21N7O2
Mol.Wt.: 403.4
Status: Custom Synthesis
Linagliptin Impurity 5
CAT No: VS-L045035
CAS No: 2253964-85-9
Mol.F.: C25H28N8O2
Mol.Wt.: 472.6
Status: In Stock
Linagliptin Impurity 50
CAT No: VS-L045079
CAS No: 1076-22-8
Mol.F.: C6H6N4O2
Mol.Wt.: 166.14
Status: Custom Synthesis
Linagliptin Impurity 51
CAT No: VS-L045080
CAS No: 188111-79-7
Mol.F.: C10H20N2O2
Mol.Wt.: 200.3
Status: Custom Synthesis
Linagliptin Impurity 52
CAT No: VS-L045081
CAS No: 130622-05-8
Mol.F.: C12H21NO6
Mol.Wt.: 275.3
Status: Custom Synthesis
Linagliptin Impurity 53
CAT No: VS-L045097
CAS No: 40673-76-5
Mol.F.: C10H12ClNO
Mol.Wt.: 197.7
Status: Custom Synthesis
Linagliptin Impurity 54
CAT No: VS-L045098
CAS No: NA
Mol.F.: C18H17N3O
Mol.Wt.: 291.4
Status: Custom Synthesis
Linagliptin Impurity 55
CAT No: VS-L045099
CAS No: NA
Mol.F.: C20H17BrN6O2
Mol.Wt.: 453.3
Status: Custom Synthesis
Linagliptin Impurity 56
CAT No: VS-L045100
CAS No: 2446799-71-7
Mol.F.: C20H17BrN6O2
Mol.Wt.: 453.3
Status: Custom Synthesis
Linagliptin Impurity 57
CAT No: VS-L045101
CAS No: 2469626-53-5
Mol.F.: C30H26N8O3
Mol.Wt.: 546.6
Status: Custom Synthesis
Linagliptin Impurity 58
CAT No: VS-L045102
CAS No: 2436762-89-7
Mol.F.: C14H13BrN4O2
Mol.Wt.: 349.2
Status: Custom Synthesis
Linagliptin Impurity 59
CAT No: VS-L045103
CAS No: NA
Mol.F.: C20H18Br2N6O2
Mol.Wt.: 534.2
Status: Custom Synthesis
Linagliptin Impurity 6 TriHCl
CAT No: VS-L045036
CAS No: N/A
Mol.F.: C50H56N16O4 : 3(HCl)
Mol.Wt.: 945.1 : 3(36.5)
Status: In Stock
Linagliptin Impurity 60
CAT No: VS-L045082
CAS No: 2444011-29-2
Mol.F.: C34H34N8O5
Mol.Wt.: 634.7
Status: Custom Synthesis
Linagliptin Impurity 61
CAT No: VS-L045094
CAS No: NA
Mol.F.: C11H24N4
Mol.Wt.: 212.26
Status: Custom Synthesis
Linagliptin Impurity 62
CAT No: VS-L045096
CAS No: NA
Mol.F.: C26H30N8O2
Mol.Wt.: 486.58
Status: Custom Synthesis
Linagliptin Impurity 63
CAT No: VS-L045104
CAS No: NA
Mol.F.: C21H24N8O2
Mol.Wt.: 420.5
Status: In Stock
Linagliptin Impurity 64
CAT No: VS-L045105
CAS No: 2749409-37-6
Mol.F.: C19H24N6O2
Mol.Wt.: 368.4
Status: Custom Synthesis
Linagliptin Impurity 65
CAT No: VS-L045107
CAS No: 216854-24-9
Mol.F.: C17H26N2O2
Mol.Wt.: 290.4
Status: Custom Synthesis
Linagliptin Impurity 66
CAT No: VS-L045108
CAS No: 6972-82-3
Mol.F.: C5H8N4O2
Mol.Wt.: 156.1
Status: Custom Synthesis
Linagliptin Impurity 67
CAT No: VS-L045109
CAS No: NA
Mol.F.: C23H22N8O3
Mol.Wt.: 458.5
Status: Custom Synthesis
Linagliptin Impurity 7
CAT No: VS-L045037
CAS No: 2416949-69-2
Mol.F.: C25H29N7O4
Mol.Wt.: 491.6
Status: In Stock
Linagliptin Impurity 8
CAT No: VS-L045038
CAS No: N/A
Mol.F.: C26H28N8O3
Mol.Wt.: 500.6
Status: In Stock
Linagliptin Impurity 9
CAT No: VS-L045039
CAS No: N/A
Mol.F.: C27H33N9O2
Mol.Wt.: 515.6
Status: Custom Synthesis
Linagliptin Impurity B
CAT No: VS-L045004
CAS No: 2138392-83-1
Mol.F.: C26H21BrN8O2
Mol.Wt.: 557.4
Status: Custom Synthesis
Linagliptin Impurity D
CAT No: VS-L045005
CAS No: N/A
Mol.F.: C20H18N6O3
Mol.Wt.: 390.4
Status: Custom Synthesis
Linagliptin Impurity F
CAT No: VS-L045006
CAS No: N/A
Mol.F.: C19H26N4O2
Mol.Wt.: 342.4
Status: Custom Synthesis
Linagliptin Impurity G
CAT No: VS-L045007
CAS No: N/A
Mol.F.: C36H40N10O4
Mol.Wt.: 676.8
Status: Custom Synthesis
Linagliptin Impurity H
CAT No: VS-L045091
CAS No: 1646355-34-1
Mol.F.: C22H23N7O2
Mol.Wt.: 417.5
Status: Custom Synthesis
Linagliptin Impurity M
CAT No: VS-L045008
CAS No: N/A
Mol.F.: C15H20N4
Mol.Wt.: 256.4
Status: Custom Synthesis
Linagliptin Impurity N
CAT No: VS-L045009
CAS No: N/A
Mol.F.: C31H32N10O2
Mol.Wt.: 576.7
Status: Custom Synthesis
Linagliptin Impurity S
CAT No: VS-L045010
CAS No: 1638744-06-5
Mol.F.: C25H29BrN8O2
Mol.Wt.: 553.5
Status: Custom Synthesis
Linagliptin Impurity-VII
CAT No: VS-L045078
CAS No: N/A
Mol.F.: C31H38N8O7
Mol.Wt.: 634.7
Status: Custom Synthesis
Linagliptin Metabolite CD1790
CAT No: VS-L045012
CAS No: N/A
Mol.F.: C25H27N7O3
Mol.Wt.: 473.5
Status: Custom Synthesis
Linagliptin N- Glucose Impurity
CAT No: VS-L045088
CAS No: NA
Mol.F.: C31H38N8O7
Mol.Wt.: 634.69
Status: Custom Synthesis
Linagliptin N-Acetyl Impurity
CAT No: VS-L045044
CAS No: 1803079-49-3
Mol.F.: C27H30N8O3
Mol.Wt.: 514.6
Status: In Stock
Linagliptin Nitroso Dimer Impurity 1
CAT No: VS-L045086
CAS No: NA
Mol.F.: C51H55N17O5
Mol.Wt.: 986.1
Status: Custom Synthesis
Linagliptin Nitroso Dimer Impurity 2
CAT No: VS-L045087
CAS No: NA
Mol.F.: C45H43N15O5
Mol.Wt.: 873.9
Status: Custom Synthesis
Linagliptin Nitroso Impurity 1
CAT No: VS-L045113
CAS No: NA
Mol.F.: C21H20N8O3
Mol.Wt.: 432.4
Status: Custom Synthesis
Linagliptin N-Oxide (Mixture of isomers)
CAT No: VS-L045106
CAS No: NA
Mol.F.: C25H28N8O3
Mol.Wt.: 488.55
Status: Custom Synthesis
Linagliptin Phthalimide Impurity
CAT No: VS-L045011
CAS No: 886588-63-2
Mol.F.: C33H30N8O4
Mol.Wt.: 602.7
Status: Custom Synthesis
Linagliptin Regio Isomer
CAT No: VS-L045054
CAS No: 1446263-38-2
Mol.F.: C25H28N8O2
Mol.Wt.: 472.6
Status: Custom Synthesis
Linagliptin Regio Isomer Dinitroso Impurity
CAT No: VS-L045083
CAS No: NA
Mol.F.: C25H26N10O4
Mol.Wt.: 530.5
Status: Custom Synthesis
Linagliptin Regio Isomer Nitroso Impurity 1
CAT No: VS-L045084
CAS No: NA
Mol.F.: C25H27N9O3
Mol.Wt.: 501.6
Status: Custom Synthesis
