Risperidone is mainly used for the treatment of schizophrenia, bipolar disorder, and irritability associated with autism. It is available as a generic medication. It is sold under the brand name Risperdal.Reference standards of Risperidone API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
Risperidone
Catalogue No.:PA 18 13000
CAS :
Molecular Formula : C23H27FN4O2
Molecular Weight : 410.48
3-[2-[4-[(E)-(2,4-Difluorophenyl)(hydroxyimino)methyl]piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13010
Molecular Formula : C23H28F2N4O2
Molecular Weight : 430.49
Risperidone Z-Oxime
Catalogue No.:PA 18 13020
(9RS)-3-[2-[4-(6-Fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-9-hydroxy-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13030
Molecular Formula : C23H27FN4O3
Molecular Weight : 426.48
3-{2-[4-(5-Fluoro-benzo[d]isoxazol-3-yl)-piperidin-1-yl]-ethyl}-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13040
3-{2-[4-(6-Fluoro-benzo[d]isoxazol-3-yl)-piperidin-1-yl]-ethyl}-2,6-dimethyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13050
Molecular Formula : C24H29FN4O2
Molecular Weight : 424.51
4-(6-Fluoro-benzo[d]isoxazol-3-yl)-piperidine-1-carboxylic acid 2-(2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)-ethyl ester
Catalogue No.:PA 18 13060
Molecular Formula : C24H27FN4O4
Molecular Weight : 454.49
3-[2-[4-(4-Fluoro-2-hydroxybenzoyl)piperidin-1- yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido- [1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13070
Molecular Formula : C23H28FN3O3
Molecular Weight : 413.49
3-[2-[4-(2,4-Difluorobenzoyl)piperidin-1-yl]ethyl]-2-methyl-6,7,8,9-tetrahydro-4H-pyrido-[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13080
Molecular Formula : C23H27F2N3O2
Molecular Weight : 415.48
3-[2-(4-{4-Fluoro-2-[4-(6-fluoro-benzo[d]isoxazol-3-yl)-piperidin-1-yl]-benzoyl}-piperidin-1-yl)-ethyl]-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13090
Molecular Formula : C35H39F2N5O3
Molecular Weight : 615.71
3-{2-[4-({4-Fluoro-2-[4-(6-fluoro-benzo[d]isoxazol-3-yl)-piperidin-1-yl]-phenyl}-hydroxyimino-methyl)-piperidin-1-yl]-ethyl}-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13100
Molecular Formula : C35H40F2N6O3
Molecular Weight : 630.73
3-[2-(4-Benzo[d]isoxazol-3-yl-piperidin-1-yl)-ethyl]-2-methyl-6,7,8,9-tetrahydro-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13110
Molecular Formula : C23H28N4O2
Molecular Weight : 392.49
3-(2-Chloroethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13120
Molecular Formula : C11H15ClN2O
Molecular Weight : 226.70
6-Fluoro-3-piperidin-4-yl-benzo[d]isoxazole Hydrochloride
Catalogue No.:PA 18 13130
Molecular Formula : C12H14ClFN2O
Molecular Weight : 256.70
Risperidone N-Oxide
Catalogue No.:PA 18 13510
(4-Fluoro-2-hydroxyphenyl)(piperidin-4-yl)methanone
Catalogue No.:PA 18 13520
Molecular Formula : C12H14FNO2
Molecular Weight : 223.24
Risperidone Ethyl Impurity
Catalogue No.:PA 18 13530
Molecular Formula : C11H16N2O
Molecular Weight : 192.26
Risperidone cis-N-Oxide
Catalogue No.:PA 18 13540
Risperidone trans-N-Oxide
Catalogue No.:PA 18 13550
Bicyclo Risperidone
Catalogue No.:PA 18 13560
Molecular Formula : C23H28FIN4O2
Molecular Weight : 538.4
Risperidone Quaternary Salt
Catalogue No.:PA 18 13570
Molecular Formula : C34H42FN6O3
Molecular Weight : 601.73
(R)-9-Hydroxy Risperidone
Catalogue No.:PA 18 13580
5-Fluoro-3-(4-piperidinyl)-1,2-benzisoxazole Hydrochloride
Catalogue No.:PA 18 13590
Molecular Weight : 256.7
3-(2-Chloroethyl-d4)-2-methyl-9-(benzyloxy)-4H-pyrido[1,2a]pyrimidin-4-one
Catalogue No.:PA STI 019680
Molecular Formula : C18H13D4ClN2O2
Molecular Weight : 332.82
3-(2-Chloroethyl-d4)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4- one
Catalogue No.:PA STI 019700
Molecular Formula : C11H11D4ClN2O
Molecular Weight : 230.73
De(6-Fluoro-3-(piperidin-4-yl)benzo[d]isoxazole) 9-Hydroxy-1-chloro Risperidone-d4
Catalogue No.:PA STI 025130
Molecular Formula : C11H7D4ClN2O2
Molecular Weight : 242.69
5-Fluoro Risperidone-d4
Catalogue No.:PA STI 042250
Molecular Formula : C23H23D4FN4O2
Molecular Weight : 414.51
7-Hydroxy Risperidone-d4
Catalogue No.:PA STI 051520
Molecular Formula : C23H23D4FN4O3
Molecular Weight : 430.51
Risperidone-d4
Catalogue No.:PA STI 078120
3-(2-Hydroxyethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PAI 18 004010
Molecular Formula : C11H12N2O2
Molecular Weight : 204.09
Pyridin-2-amine
Catalogue No.:PAI 18 004020
Molecular Formula : C5H6N2
Molecular Weight : 94.05
3-Acetyldihydrofuran-2(3H)-one
Catalogue No.:PAI 18 004030
Molecular Formula : C6H8O3
Molecular Weight : 128.05
Chloro Benzene
Catalogue No.:PAI 18 004040
Molecular Formula : C6H5Cl
Molecular Weight : 112.01
Para Toluene Sulphonic Acid
Catalogue No.:PAI 18 004050
Molecular Formula : C7H8O3S
Molecular Weight : 172.02
3-(2-Hydroxyethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PAI 18 004060
Molecular Formula : C11H16N2O2
Molecular Weight : 208.26
2-(2-Methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl carbonochloridate
Catalogue No.:PAI 18 004070
Molecular Formula : C12H15ClN2O3
Molecular Weight : 270.08
4-(2,4-Difluorobenzoyl)piperidine Hydrochloride
Catalogue No.:PA 18 13600
Molecular Formula : C12H14ClF2NO
Molecular Weight : 261.7
2,4-Difluorophenyl-(4-piperidinyl)methanone oxime Hydrochloride
Catalogue No.:PA 18 13610
Molecular Formula : C12H15ClF2N2O
Molecular Weight : 276.71
(E)-(2,4-Difluorophenyl)(piperidin-4-yl)methanone oxime Hydrochloride
Catalogue No.:PA 18 13620
3,6-Dihydro Risperidone
Catalogue No.:PA 18 13630
Molecular Formula : C23H25FN4O2
Molecular Weight : 408.48
(E)-1-Acetyl-α-(5-fluoro-2-hydroxyphenyl)-N-hydroxy-4-piperidinemethanimine
Catalogue No.:PA 18 13640
Molecular Formula : C14H17FN2O3
Molecular Weight : 280.29
4-(N-Acetyl)piperidinyl 2-(5-Methoxy)phenol Ketone
Catalogue No.:PA 18 13650
Molecular Formula : C15H19NO4
Molecular Weight : 277.32
Risperidone (R1000600)
Catalogue No.:PA EPR1000600
Molecular Formula : NA
Molecular Weight : NA
Risperidone for system suitability (Y0000370)
Catalogue No.:PA EPY0000370
Risperidone impurity K (Y0001276)
Catalogue No.:PA EPY0001276
risperidone (1137RB)
Catalogue No.:PA BP1137RB
risperidone impurity standard (1158RB)
Catalogue No.:PA BP1158RB
Risperidone (1604654)
Catalogue No.:PA USP1604654
Risperidone System Suitability Mixture (1604665)
Catalogue No.:PA USP1604665
Risperidone Related Compounds Mixture (1604676)
Catalogue No.:PA USP1604676
Risperidone Related Compound G (3-{2-[4-(4-Fluoro-2-hydroxybenzoyl)piperidin-1-yl]ethyl}-2-methyl-6 (1604756)
Catalogue No.:PA USP1604756
3-Vinyl-6,7,8,9-tetrahydro-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 13660
Molecular Formula : C11H14N2O
Molecular Weight : 190.24
7-Hydroxy Risperidone
Catalogue No.:PA 18 0131000
Molecular Weight : 426.49
3-(2-Chloroethyl)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 0131001
Molecular Formula : C11H11ClN2O
Molecular Weight : 222.67
3-(2-Chloroethyl-d4)-2-methyl-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 0131002
Molecular Formula : C11H7D4ClN2O
6-Desfluoro-6-hydroxy Risperidone
Catalogue No.:PA 18 0131003
Molecular Formula : C23H28N4O3
Molecular Weight : 408.50
4-Fluoro Risperidone
Catalogue No.:PA 18 0131004
Molecular Weight : 410.49
4-Fluoro-3-(piperidin-4-yl)benzo[d]isoxazole
Catalogue No.:PA 18 0131005
Molecular Formula : C12H13FN2O
Molecular Weight : 220.25
2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]- pyrimidin-4-one Hydrochloride (Risperidone Piperidopyrimidinone Intermediate Hydrochloride)
Catalogue No.:PA 18 0130121
Molecular Formula : C11H16Cl2N2O
Molecular Weight : 263.16
Risperidone System Suitability Mixture
Catalogue No.:PA 18 0131007
Risperidone Related Compounds Mixture
Catalogue No.:PA 18 0131006
Methyl 5,6,7,8-Tetradehydro Risperidone
Catalogue No.:PA 18 0131008
Molecular Formula : C24H25FN4O2
Molecular Weight : 420.49
(3-(4-Piperidyl)-1,2-Benzisoxazole HCl)
Catalogue No.:PA 18 0131009
Molecular Formula : C12H15ClN2O
Molecular Weight : 238.72
3-(2-(4-(6-(2-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)benzo[d]isoxazol-3-yl)piperidin-1-yl)ethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 0131010
Molecular Formula : C35H39FN6O3
Molecular Weight : 610.73
5,6,7,8-Tetradehydro Risperidone
Catalogue No.:PA 18 0131011
Molecular Formula : C23H23FN4O2
Molecular Weight : 406.46
1,4-Piperidinedicarboxylic acid 1-ethyl ester
Catalogue No.:PA 18 0131012
Molecular Formula : C9H15NO4
Molecular Weight : 201.22
3-(2-(4-(4-Fluoro-2-hydroxybenzoyl)piperidin-1-yl)ethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one Hydrochloride
Catalogue No.:PA 18 0131013
Molecular Formula : C23H29ClFN3O3
Molecular Weight : 449.95
Bicyclo Risperidone Chloride Impurity
Catalogue No.:PA 18 0131014
Molecular Formula : C23H28ClFN4O2
Molecular Weight : 446.95
Risperidone cis-N-Oxide Hydrate
Catalogue No.:PA 18 0131015
Molecular Formula : C23H29FN4O4
Molecular Weight : 444.51
3-(4-Piperidyl)-1,2-Benzisoxazole
Catalogue No.:PA 18 0131016
Molecular Formula : C12H14N2O
Molecular Weight : 202.26
4-(6-Fluorobenzo[d]isoxazol-3-yl)-1,1-bis(2-(2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-3-yl)ethyl)piperidin-1-ium Chloride
Catalogue No.:PA 18 0131017
Molecular Formula : C34H42ClFN6O3
Molecular Weight : 637.2
Risperidone Piperidine Impurity
Catalogue No.:PA 18 0131018
Molecular Formula : C24H25F2N3O2
Molecular Weight : 425.48
3-(2-Chloroethyl)-2-methyl-4-oxo-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidine 1-oxide
Catalogue No.:PA 18 0131019
Molecular Formula : C11H15ClN2O2
Molecular Weight : 242.7
4-(2,4-Difluorobenzoyl)piperidine-1-carbaldehyde
Catalogue No.:PA 18 0131020
Molecular Formula : C13H13F2NO2
Molecular Weight : 253.25
Risperidone Related Compound G (IMPF024)
Catalogue No.:PA IMPF024
Risperidone PyriMidinone-N-oxide
Catalogue No.:PA 18 0131021
5-Fluoro-3-(1-nitrosopiperidin-4-yl)benzo[d]isoxazole
Catalogue No.:PA 18 0131022
Molecular Formula : C12H12FN3O2
Molecular Weight : 249.25
(E)-3-(2-(4-((4-Fluoro-2-(4-(6-fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)phenyl)(hydroxyimino)methyl)piperidin-1-yl)ethyl)-2-methyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one
Catalogue No.:PA 18 0131023
Molecular Weight : 630.74
2-Acetylbutyrolactone
Catalogue No.:PA BSC 01318199
Molecular Weight : 128.13
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