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Quetiapine
Venkatasai is a leading provider of pharmaceutical reference standards, specializing in the supply of high-purity Quetiapine 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 Quetiapine-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.
Quetiapine
CAT No: VS-Q002000
CAS No: 111974-69-7
Mol.F.: C21H25N3O2S
Mol.Wt.: 383.5
Status: Custom Synthesis
Quetiapine Fumarate
CAT No: VS-Q002001
CAS No: 111974-72-2
Mol.F.: C21H25N3O2S : 1/2(C4H4O4)
Mol.Wt.: 383.5 : 1/2(116.1)
Status: Custom Synthesis
Quetiapine EP Impurity A
CAT No: VS-Q002002
CAS No: 844639-07-2
Mol.F.: C23H27N3O3S
Mol.Wt.: 425.5
Status: In Stock
Quetiapine EP Impurity B ( DiHCl Salt)
CAT No: VS-Q002003
CAS No: 111974-74-4
Mol.F.: C17H17N3S : 2(HCl)
Mol.Wt.: 295.4 : 2(36.5)
Status: In Stock
Quetiapine EP Impurity C
CAT No: VS-Q002004
CAS No: 1798840-31-9
Mol.F.: C40H42N6O3S2
Mol.Wt.: 718.9
Status: In Stock
Quetiapine EP Impurity D
CAT No: VS-Q002005
CAS No: N/A
Mol.F.: C30H24N4S2 : HCl
Mol.Wt.: 504.7 : 36.5
Status: In Stock
Quetiapine EP Impurity E
CAT No: VS-Q002006
CAS No: 1371638-05-9
Mol.F.: C40H44N6O2S2
Mol.Wt.: 704.9
Status: In Stock
Quetiapine EP Impurity F
CAT No: VS-Q002007
CAS No: 848814-27-7
Mol.F.: C21H27N3O3S
Mol.Wt.: 401.5
Status: In Stock
Quetiapine EP Impurity G
CAT No: VS-Q002008
CAS No: 3159-07-7
Mol.F.: C13H9NOS
Mol.Wt.: 227.3
Status: Custom Synthesis
Quetiapine EP Impurity H
CAT No: VS-Q002009
CAS No: 1076199-40-0
Mol.F.: C21H25N3O3S
Mol.Wt.: 399.5
Status: Custom Synthesis
Quetiapine EP Impurity H Fumarate salt
CAT No: VS-Q002010
CAS No: N/A
Mol.F.: C21H25N3O3S : C4H4O4
Mol.Wt.: 399.5 : 116.1
Status: Custom Synthesis
Quetiapine EP Impuirty I
CAT No: VS-Q002011
CAS No: 329216-67-3
Mol.F.: C19H21N3OS
Mol.Wt.: 339.5
Status: Custom Synthesis
Quetiapine EP Impurity I HCl Salt
CAT No: VS-Q002012
CAS No: 329218-14-6
Mol.F.: C19H21N3OS : 2HCl
Mol.Wt.: 339.5 : 2(36.5)
Status: Custom Synthesis
Quetiapine EP Impurity J
CAT No: VS-Q002013
CAS No: 1356906-17-6
Mol.F.: C25H33N3O4S
Mol.Wt.: 471.6
Status: Limited Stock
Quetiapine EP Impurity K
CAT No: VS-Q002014
CAS No: 1371638-10-6
Mol.F.: C23H29N3O4S
Mol.Wt.: 443.6
Status: In Stock
Quetiapine EP Impurity L
CAT No: VS-Q002015
CAS No: 1371638-11-7
Mol.F.: C21H24ClN3O2S
Mol.Wt.: 418
Status: In Stock
Quetiapine EP Impurity N
CAT No: VS-Q002016
CAS No: 1800291-86-4
Mol.F.: C29H41N5O3S
Mol.Wt.: 539.7
Status: In Stock
Quetiapine EP Impurity O
CAT No: VS-Q002017
CAS No: 844639-06-1
Mol.F.: C40H39N3O2S
Mol.Wt.: 625.8
Status: In Stock
Quetiapine EP Impurity P
CAT No: VS-Q002018
CAS No: 1011758-03-4
Mol.F.: C19H21N3S
Mol.Wt.: 323.5
Status: In Stock
Quetiapine EP Impurity P HCl Salt
CAT No: VS-Q002019
CAS No: N/A
Mol.F.: C19H21N3S : HCl
Mol.Wt.: 323.5 : 36.5
Status: Custom Synthesis
Quetiapine EP Impurity Q
CAT No: VS-Q002020
CAS No: N/A
Mol.F.: C25H34N3O4S : I
Mol.Wt.: 472.6 : 126.9
Status: In Stock
Quetiapine Impurity Q [Quetiapine-N-Di(ethoxyethanol)]
![Picture of Quetiapine Impurity Q [Quetiapine-N-Di(ethoxyethanol)]](https://venkatasailifesciences.com/content/images/thumbs/0056803_quetiapine-impurity-q-quetiapine-n-diethoxyethanol_350.png "Show details for Quetiapine Impurity Q [Quetiapine-N-Di(ethoxyethanol)]")
CAT No: VS-Q002021
CAS No: N/A
Mol.F.: C25H34N3O4S : I
Mol.Wt.: 472.6 : 126.9
Status: Custom Synthesis
Quetiapine EP Impurity R
CAT No: VS-Q002022
CAS No: 2459-05-4
Mol.F.: C6H8O4
Mol.Wt.: 144.1
Status: Custom Synthesis
Quetiapine EP Impurity S
CAT No: VS-Q002023
CAS No: 329216-63-9
Mol.F.: C21H25N3O3S
Mol.Wt.: 399.5
Status: In Stock
Quetiapine EP Impurity S HCl Salt
CAT No: VS-Q002024
CAS No: 329218-11-3
Mol.F.: C21H25N3O3S : 2HCl
Mol.Wt.: 399.5 : 2(36.5)
Status: Custom Synthesis
Quetiapine EP Impurity T
CAT No: VS-Q002025
CAS No: 5747-46-6
Mol.F.: C17H16N2OS
Mol.Wt.: 296.4
Status: Custom Synthesis
Quetiapine EP Impurity U
CAT No: VS-Q002026
CAS No: 5786-26-5
Mol.F.: C13H10N2S
Mol.Wt.: 226.3
Status: In Stock
Quetiapine EP Impurity V
CAT No: VS-Q002027
CAS No: N/A
Mol.F.: C21H25N3O2
Mol.Wt.: 351.4
Status: In Stock
Quetiapine EP Impurity W
CAT No: VS-Q002028
CAS No: 1800608-95-0
Mol.F.: C34H32N4O2S2
Mol.Wt.: 592.8
Status: Custom Synthesis
Quetiapine Ethyl Ether (Fumarate)
CAT No: VS-Q002029
CAS No: 2470241-46-2
Mol.F.: C23H29N3O2S : C4H4O4
Mol.Wt.: 411.6 : 116.1
Status: Custom Synthesis
Quetiapine HEEP Impurity
CAT No: VS-Q002030
CAS No: 13349-82-1
Mol.F.: C8H18N2O2
Mol.Wt.: 174.2
Status: Custom Synthesis
Quetiapine Sulfone (HCl Salt)
CAT No: VS-Q002031
CAS No: 329218-13-5
Mol.F.: C21H25N3O4S : HCl
Mol.Wt.: 415.5 : 36.5
Status: Custom Synthesis
Quetiapine 7-Hydroxy Impurity
CAT No: VS-Q002032
CAS No: N/A
Mol.F.: C21H25N3O3S : HCl
Mol.Wt.: 399.5 : 36.5
Status: Custom Synthesis
Quetiapine 7-Hydroxy Sulfoxide
CAT No: VS-Q002033
CAS No: 1185170-04-0
Mol.F.: C21H25N3O4S
Mol.Wt.: 415.5
Status: Custom Synthesis
Quetiapine Carboxylate Impurity
CAT No: VS-Q002034
CAS No: 1011758-00-1
Mol.F.: C22H25N3O4S
Mol.Wt.: 427.5
Status: Custom Synthesis
Quetiapine 11 Chloro Impurity
CAT No: VS-Q002035
CAS No: 13745-86-3
Mol.F.: C13H8ClNS
Mol.Wt.: 245.7
Status: Custom Synthesis
Quetiapine DBTC Sulfone
CAT No: VS-Q002036
CAS No: 52264-22-9
Mol.F.: C13H8ClNO2S
Mol.Wt.: 277.7
Status: Custom Synthesis
Quetiapine DBTO Sulfone
CAT No: VS-Q002037
CAS No: 22871-33-6
Mol.F.: C13H9NO3S
Mol.Wt.: 259.3
Status: Custom Synthesis
Quetiapine DBTP 7-Hydroxy Metabolite
CAT No: VS-Q002038
CAS No: 1397181-83-7
Mol.F.: C17H17N3OS : 2(HCl)
Mol.Wt.: 311.4 : 2(36.5)
Status: Custom Synthesis
Quetiapine DBTP N-Methyl Impurity
CAT No: VS-Q002039
CAS No: 1977-09-9
Mol.F.: C18H19N3S
Mol.Wt.: 309.4
Status: Custom Synthesis
Quetiapine Diether Alcohol
CAT No: VS-Q002040
CAS No: N/A
Mol.F.: C23H29N3O3S . HCl
Mol.Wt.: 427.6 : 36.5
Status: Custom Synthesis
Quetiapine Dipiperazine Monoether Impurity
CAT No: VS-Q002041
CAS No: N/A
Mol.F.: C27H37N5O2S : HCl
Mol.Wt.: 495.7 : 36.5
Status: Custom Synthesis
Phenyl-2-(phenyl thio)phenyl carbamide
CAT No: VS-Q002042
CAS No: 111974-73-3
Mol.F.: C19H15NO2S
Mol.Wt.: 321.4
Status: Custom Synthesis
2-Aminodiphenyl Sulfide
CAT No: VS-Q002043
CAS No: 1134-94-7
Mol.F.: C12H11NS
Mol.Wt.: 201.3
Status: Custom Synthesis
2-[2-(4-Dibenzo[b,f] [1,4]thiazepine-11-yl-1-piperazineyl)ethoxyl]-1-ethyl Ethanol
![Picture of 2-[2-(4-Dibenzo[b,f] [1,4]thiazepine-11-yl-1-piperazineyl)ethoxyl]-1-ethyl Ethanol](https://venkatasailifesciences.com/content/images/thumbs/0051023_2-2-4-dibenzobf-14thiazepine-11-yl-1-piperazineylethoxyl-1-ethyl-ethanol_350.png "Show details for 2-[2-(4-Dibenzo[b,f] [1,4]thiazepine-11-yl-1-piperazineyl)ethoxyl]-1-ethyl Ethanol")
CAT No: VS-Q002044
CAS No: N/A
Mol.F.: C24H33N3O2S
Mol.Wt.: 427.6
Status: Custom Synthesis
2-(2-Hydroxyethoxy)ethyl 2-[2-(4-Dibenzo[b,f] [1,4]thiazepine-11-piperazineyl)] -1-carboxylate
![Picture of 2-(2-Hydroxyethoxy)ethyl 2-[2-(4-Dibenzo[b,f] [1,4]thiazepine-11-piperazineyl)] -1-carboxylate](https://venkatasailifesciences.com/content/images/thumbs/0051024_2-2-hydroxyethoxyethyl-2-2-4-dibenzobf-14thiazepine-11-piperazineyl-1-carboxylate_350.png "Show details for 2-(2-Hydroxyethoxy)ethyl 2-[2-(4-Dibenzo[b,f] [1,4]thiazepine-11-piperazineyl)] -1-carboxylate")
CAT No: VS-Q002045
CAS No: N/A
Mol.F.: C22H27N3O4S
Mol.Wt.: 429.5
Status: Custom Synthesis
Quetiapine Impurity III (N,N'-Bis[2-(phenylthio)phenyl]urea)
![Picture of Quetiapine Impurity III (N,N'-Bis[2-(phenylthio)phenyl]urea)](https://venkatasailifesciences.com/content/images/thumbs/0051025_quetiapine-impurity-iii-nn-bis2-phenylthiophenylurea_350.png "Show details for Quetiapine Impurity III (N,N'-Bis[2-(phenylthio)phenyl]urea)")
CAT No: VS-Q002046
CAS No: 102893-57-2
Mol.F.: C25H20N2OS2
Mol.Wt.: 428.6
Status: Custom Synthesis
Quetiapine Impurity III (N-[2-(Phenylthio)phenyl]-1-piperazinecarboxamide)
![Picture of Quetiapine Impurity III (N-[2-(Phenylthio)phenyl]-1-piperazinecarboxamide)](https://venkatasailifesciences.com/content/images/thumbs/0051026_quetiapine-impurity-iii-n-2-phenylthiophenyl-1-piperazinecarboxamide_350.png "Show details for Quetiapine Impurity III (N-[2-(Phenylthio)phenyl]-1-piperazinecarboxamide)")
CAT No: VS-Q002047
CAS No: 837383-82-1
Mol.F.: C17H19N3OS
Mol.Wt.: 313.4
Status: Custom Synthesis
Quetiapine Impurity (N,N'-bis[(2-phenylthio)phenyl]-1,4-piperazinedicarboxamide)
![Picture of Quetiapine Impurity (N,N'-bis[(2-phenylthio)phenyl]-1,4-piperazinedicarboxamide)](https://venkatasailifesciences.com/content/images/thumbs/0051027_quetiapine-impurity-nn-bis2-phenylthiophenyl-14-piperazinedicarboxamide_350.png "Show details for Quetiapine Impurity (N,N'-bis[(2-phenylthio)phenyl]-1,4-piperazinedicarboxamide)")
CAT No: VS-Q002048
CAS No: 1126432-68-5
Mol.F.: C30H28N4O2S2
Mol.Wt.: 540.7
Status: Custom Synthesis
Quetiapine Impurity IV
CAT No: VS-Q002049
CAS No: N/A
Mol.F.: C23H30N3O3S
Mol.Wt.: 428.6
Status: Custom Synthesis
N-desalkyl Quetiapine fumarate
CAT No: VS-Q002050
CAS No: 937731-18-5
Mol.F.: C17H17N3S : C4H4O4
Mol.Wt.: 295.4 : 116.1
Status: Custom Synthesis
Quetiapine Hemifumarate Ester
CAT No: VS-Q002051
CAS No: 2209488-73-1
Mol.F.: C25H27N3O5S
Mol.Wt.: 481.6
Status: Custom Synthesis
Ortho-nitro chlorobenzene and phenol
CAT No: VS-Q002052
CAS No: N/A
Mol.F.: C6H4ClNO2 : C6H6O
Mol.Wt.: 157.6 : 94.1
Status: Custom Synthesis
Thiophenol
CAT No: VS-Q002053
CAS No: 108-98-5
Mol.F.: C6H6S
Mol.Wt.: 110.2
Status: Custom Synthesis
2-amino biphenyl sulphide and phenyl-2-(phenylthio)-phenylcarbamate
CAT No: VS-Q002054
CAS No: N/A
Mol.F.: C19H14NO2S : C12H11NS
Mol.Wt.: 320.4 : 201.3
Status: Custom Synthesis
7-Hydroxy Quetiapine
CAT No: VS-Q002055
CAS No: 139079-39-3
Mol.F.: C21H25N3O3S
Mol.Wt.: 399.5
Status: Custom Synthesis
Quetiapine Impurity 4
CAT No: VS-Q002056
CAS No: 1241800-24-7
Mol.F.: C21H27N3O3S
Mol.Wt.: 401.5
Status: Out of Stock
Quetiapine Impurity 6
CAT No: VS-Q002057
CAS No: 1514918-27-4
Mol.F.: C21H25N3O4S
Mol.Wt.: 415.5
Status: Custom Synthesis
Quetiapine Impurity 7
CAT No: VS-Q002058
CAS No: 2206606-97-3
Mol.F.: C21H25N3O5S
Mol.Wt.: 431.5
Status: Custom Synthesis
Quetiapine Impurity 9
CAT No: VS-Q002059
CAS No: 2206606-99-5
Mol.F.: C22H26N4OS
Mol.Wt.: 394.5
Status: Custom Synthesis
Quetiapine Impurity 10
CAT No: VS-Q002060
CAS No: 2206135-48-8
Mol.F.: C14H11NOS
Mol.Wt.: 241.3
Status: Custom Synthesis
Quetiapine Impurity 11
CAT No: VS-Q002061
CAS No: 2206607-04-5
Mol.F.: C15H13NOS
Mol.Wt.: 255.3
Status: Custom Synthesis
Quetiapine Impurity 12
CAT No: VS-Q002062
CAS No: 2206135-50-2
Mol.F.: C25H18N2S2
Mol.Wt.: 410.6
Status: Custom Synthesis
Quetiapine Impurity 13
CAT No: VS-Q002063
CAS No: N/A
Mol.F.: C21H24N3OS : Cl
Mol.Wt.: 366.5 : 35.5
Status: Custom Synthesis
Quetiapine Impurity 14
CAT No: VS-Q002064
CAS No: 2206607-05-6
Mol.F.: C23H28ClN3O2S
Mol.Wt.: 446
Status: Custom Synthesis
Quetiapine Impurity 15
CAT No: VS-Q002065
CAS No: 37539-80-3
Mol.F.: C13H8ClNS
Mol.Wt.: 245.7
Status: Custom Synthesis
Quetiapine Impurity 16
CAT No: VS-Q002066
CAS No: N/A
Mol.F.: 2(C21H25N3O2S) : C4H4O4
Mol.Wt.: 2(383.5) : 116.1
Status: Custom Synthesis
Quetiapine Impurity 17
CAT No: VS-Q002067
CAS No: 329216-69-5
Mol.F.: C23H29N3O3S
Mol.Wt.: 427.6
Status: Custom Synthesis
Quetiapine Impurity 18
CAT No: VS-Q002068
CAS No: N/A
Mol.F.: C21H25N3O3S : 1/2(C4H4O4)
Mol.Wt.: 399.5 : 1/2(116.1)
Status: Custom Synthesis
Quetiapine Impurity 19
CAT No: VS-Q002069
CAS No: N/A
Mol.F.: C19H21N3OS : C4H4O4
Mol.Wt.: 339.5 : 116.1
Status: Custom Synthesis
N-Nitroso Quetiapine Impurity
CAT No: VS-Q002070
CAS No: 73486-81-4
Mol.F.: C8H17N3O3
Mol.Wt.: 203.2
Status: Custom Synthesis
Quetiapine Impurity B
CAT No: VS-Q002071
CAS No: 11974-74-4
Mol.F.: C17H19Cl2N3S
Mol.Wt.: 368.32
Status: Custom Synthesis
Quetiapine Impurity V
CAT No: VS-Q002072
CAS No: 2204369-14-0
Mol.F.: C21H25N3O2
Mol.Wt.: 351.44
Status: Custom Synthesis
Quetiapine EP Impurity D
CAT No: VS-Q002073
CAS No: 945668-94-0
Mol.F.: C30H24N4S2
Mol.Wt.: 504.67
Status: Custom Synthesis
Ethyl Quetiapine Fumarate Salt
CAT No: VS-Q002074
CAS No: 1011758-06-7
Mol.F.: C23H29N3O2S
Mol.Wt.: 411.56
Status: Custom Synthesis
Quetiapine Impurity 21
CAT No: VS-Q002075
CAS No: 5197-62-6
Mol.F.: C6H13ClO3
Mol.Wt.: 168.6
Status: Custom Synthesis
Quetiapine Impurity 22
CAT No: VS-Q002076
CAS No: 112-26-5
Mol.F.: C6H12Cl2O2
Mol.Wt.: 187.06
Status: Custom Synthesis
Quetiapine Impurity 23
CAT No: VS-Q002077
CAS No: 17229-14-0
Mol.F.: C6H11ClO3
Mol.Wt.: 166.6
Status: Custom Synthesis
Quetiapine Impurity 24
CAT No: VS-Q002078
CAS No: 141-43-5
Mol.F.: C2H7NO
Mol.Wt.: 61.08
Status: Custom Synthesis
Quetiapine Impurity 25
CAT No: VS-Q002079
CAS No: 6764-13-2
Mol.F.: C12H12ClNS
Mol.Wt.: 237.75
Status: Custom Synthesis
Quetiapine Impurity 26
CAT No: VS-Q002080
CAS No: 107-07-3
Mol.F.: C2H5ClO
Mol.Wt.: 80.5
Status: Custom Synthesis
Quetiapine Nitroso EP Impurity B
CAT No: VS-Q002081
CAS No: NA
Mol.F.: C17H16N4OS
Mol.Wt.: 324.4
Status: Custom Synthesis
Quetiapine EP Impurity B
CAT No: VS-Q002082
CAS No: 5747-48-8
Mol.F.: C17H17N3S
Mol.Wt.: 295.4
Status: Custom Synthesis
Quetiapine EP Impuirty I (Fumarate salt)
CAT No: VS-Q002083
CAS No: 2734403-85-9
Mol.F.: C19H21N3OS : C4H4O4
Mol.Wt.: 339.5 : 116.1
Status: Custom Synthesis
Quetiapine Impurity 27
CAT No: VS-Q002084
CAS No: 86-29-3
Mol.F.: C14H11N
Mol.Wt.: 193.24
Status: Custom Synthesis
Quetiapine D4 Fumarate
CAT No: VS-Q002085
CAS No: 1331636-50-0
Mol.F.: C21H21D4N3O2S : C4H4O4
Mol.Wt.: 387.5 : 116.1
Status: Custom Synthesis
N-Nitroso Quetiapine EP Impurity B D8
CAT No: VS-Q002086
CAS No: NA
Mol.F.: C17H8D8N4OS
Mol.Wt.: 332.5
Status: Custom Synthesis
N,N′-Bis(hydroxyethoxyethyl)piperazine
CAT No: VS-Q002087
CAS No: 14258-43-6
Mol.F.: C12H26N2O4
Mol.Wt.: 262.4
Status: Custom Synthesis
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