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Cleanchem is a trusted provider of premium pharmaceutical reference materials, specializing in Ziprasidone and its associated compounds. Our catalog includes pharmacopeial and non-pharmacopeial Ziprasidone impurities, metabolites, nitrosamine derivatives (N-NO compounds), and stable isotope-labeled products. These reference standards play a critical role in pharmaceutical R&D, supporting activities such as product formulation, ANDA and DMF submissions, quality assurance, analytical method development, and stability assessments.
All Ziprasidone-related substances undergo comprehensive characterization and are delivered with complete Certificates of Analysis and supporting analytical documentation to ensure regulatory adherence. Upon request, we can offer EP/USP traceable standards. Our products are routinely re-evaluated to maintain consistent quality and performance.

Ziprasidone hydrochloride monohydrate

CAT No: CL-ZPRSD-01 CAS No: 138982-67-9 Mol Wt: 412.9 : 36.5 : 18.0 Mol F: C21H21ClN4OS : HCl : H2O Inv Status: Custom Synthesis

Chemical Name: 5-[2-[4-(1,2-Benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one hydrochloride monohydrate

Ziprasidone EP Impurity A

CAT No: CL-ZPRSD-02 CAS No: NA Mol Wt: 219.3 Mol F: C11H13N3S Inv Status: In Stock

Chemical Name: 3-piperazin-1-yl-1,2-benzisothiazole

Ziprasidone Impurity 5

CAT No: CL-ZPRSD-03 CAS No: 131779-46-9 Mol Wt: 319.4 Mol F: C16H21N3O2S Inv Status: Custom Synthesis

Chemical Name: tert-butyl 4-(benzo[d]isothiazol-3-yl)piperazine-1-carboxylate

Ziprasidone Impurity 10

CAT No: CL-ZPRSD-04 CAS No: 2327157-90-2 Mol Wt: 261.3 Mol F: C13H15N3OS Inv Status: Custom Synthesis

Chemical Name: 1-[ 4-(1 ,2-Benzisothiazol-3-yl)piperazin-1-yl] ethanone

Ziprasidone Impurity 13

CAT No: CL-ZPRSD-05 CAS No: 118306-76-6 Mol Wt: 195.6 Mol F: C10H10ClNO Inv Status: Custom Synthesis

Chemical Name: 5-(2-Chloroethyl)indolin-2-one

Ziprasidone Impurity 20

CAT No: CL-ZPRSD-06 CAS No: 65435-04-3 Mol Wt: 209.6 Mol F: C10H8ClNO2 Inv Status: Custom Synthesis

Chemical Name: 5-(2-Chloroacetyl)indolin-2-one

Ziprasidone Deschloro Impurity

CAT No: CL-ZPRSD-07 CAS No: 118305-72-9 Mol Wt: 378.5 Mol F: C21H22N4OS Inv Status: Custom Synthesis

Chemical Name: 5-(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)indolin-2-one

Ziprasidone Impurity 2

CAT No: CL-ZPRSD-08 CAS No: 684269-12-3 Mol Wt: 453 Mol F: C24H25ClN4OS Inv Status: Custom Synthesis

Chemical Name: 5-[2-[4-(1,2-Benzisothiazol-3-yl)-1-piperazinyl]ethyl]-6-chloro-1,3-dihydro-3-(1-methylethylidene)-2H-indol-2-one

Ziprasidone N-Oxide

CAT No: CL-ZPRSD-09 CAS No: 188797-76-4 Mol Wt: 428.9 Mol F: C21H21ClN4O2S Inv Status: Custom Synthesis

Chemical Name: 4-(benzo[d]isothiazol-3-yl)-1-(2-(6-chloro-2-oxoindolin-5-yl)ethyl)piperazine 1-oxide

Ziprasidone EP Impurity B

CAT No: CL-ZPRSD-10 CAS No: 1159977-56-6 Mol Wt: 426.9 Mol F: C21H19ClN4O2S Inv Status: Custom Synthesis

Chemical Name: 5-[2-[4-(1,2-benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1H-indole-2,3-dione

Ziprasidone EP Impurity E

CAT No: CL-ZPRSD-11 CAS No: 1159977-04-4 Mol Wt: 546.1 Mol F: C28H24ClN5OS2 Inv Status: Custom Synthesis

Chemical Name: 3-(1,2-benzisothiazol-3-yl)-5-[2-[4-(1,2-benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one

Ziprasidone Impurity 11

CAT No: CL-ZPRSD-12 CAS No: 118307-04-3 Mol Wt: 244.07 Mol F: C10H7Cl2NO2 Inv Status: Custom Synthesis

Chemical Name: 5-Chloroacetyl-6-chloro-1,3-dihydroindol-2H-indone-2-one

Ziprasidone Impurity F

CAT No: CL-ZPRSD-13 CAS No: 118289-55-7 Mol Wt: 230.09 Mol F: C10H9Cl2NO Inv Status: Custom Synthesis

Chemical Name: (5-(2-Chloroethyl)-6-chlorooxindole)

6-Chlorooxindole

CAT No: CL-ZPRSD-14 CAS No: 56341-37-8 Mol Wt: 167.6 Mol F: C8H6ClNO Inv Status: Custom Synthesis

Chemical Name: 6-Chloroindolin-2-one (as per USP)

Hydroxy Ziprasidone

CAT No: CL-ZPRSD-15 CAS No: 884305-08-2 Mol Wt: 428.9 Mol F: C21H21ClN4O2S Inv Status: Custom Synthesis

Chemical Name: 5-(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)-1-hydroxyethyl)-6-chloroindolin-2-one

Ziprasidone HCl

CAT No: CL-ZPRSD-16 CAS No: 122883-93-6 Mol Wt: 412.9 : 36.5 Mol F: C21H21ClN4OS : HCl Inv Status: Custom Synthesis

Chemical Name: 5-(2-(4-(Benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-6-chloroindolin-2-one hydrochloride

Ziprasidone Impurity 1

CAT No: CL-ZPRSD-17 CAS No: 884305-06-0 Mol Wt: 246.1 Mol F: C10H9Cl2NO2 Inv Status: Custom Synthesis

Chemical Name: (6-Chloro-5-(2-Chloro-1-Hydroxy-Ethyl)-1,3-Dihydro-Indol-2-One)

Ziprasidone Impurity 12

CAT No: CL-ZPRSD-18 CAS No: 147124-32-1 Mol Wt: 287.7 Mol F: C11H10ClNO6 Inv Status: Custom Synthesis

Chemical Name: Dimethyl 2-(4-chloro-2-nitrophenyl)malonate

Ziprasidone Impurity 9

CAT No: CL-ZPRSD-19 CAS No: NA Mol Wt: 326.4 Mol F: C16H14N4S2 Inv Status: Custom Synthesis

Chemical Name: N,N-bis(1,2-benzisothiazol-3-yl)ethane-1,2-diamine

Ziprasidone Impurity P

CAT No: CL-ZPRSD-20 CAS No: 223586-82-1 Mol Wt: 352.5 Mol F: C18H16N4S2 Inv Status: Custom Synthesis

Chemical Name: 1,4-Bis(benzo[d]isothiazol-3-yl)piperazine

Ziprasidone Keto Impurity

CAT No: CL-ZPRSD-21 CAS No: 884305-07-1 Mol Wt: 426.9 Mol F: C21H19ClN4O2S Inv Status: Custom Synthesis

Chemical Name: 5-[2-[4-(1,2-Benzisothiazol-3-yl)-1-piperazinyl]acetyl]-6-chloro-1,3-dihydro-2H-indol-2-one

Ziprasidone Sulfoxide

CAT No: CL-ZPRSD-22 CAS No: 188797-80-0 Mol Wt: 428.9 Mol F: C21H21ClN4O2S Inv Status: Custom Synthesis

Chemical Name: 6-Chloro-5-{2-[4-(1-oxidobenzisothiazol-3-yl)piperazin-1-yl]ethyl}indolin-2-one (As per USP)

Ziprasidone EP Impurity C (Sodium salt)

CAT No: CL-ZPRSD-23 CAS No: 1798033-44-9 Mol Wt: 429.9 : 23.0 Mol F: C21H22ClN4O2S : Na Inv Status: Custom Synthesis

Chemical Name: Sodium 2-[2-Amino-5-[2-[4-(1,2-benzisothiazol-3-yl)piperazin-1-yl]ethyl]-4-chlorophenyl]acetate (as per EP) ; Sodium 2-(2-amino-5-{2-[4-(benzo[d]isothiazol-3-yl)piperazin-1-yl]ethyl}-4-chlorophenyl)acetate (as per USP)

Benzisothiazole Sulphoxide

CAT No: CL-ZPRSD-24 CAS No: 128396-56-5 Mol Wt: 235.3 Mol F: C11H13N3OC11H13N3OC11H13N3OS Inv Status: Custom Synthesis

Chemical Name: 3-(Piperazin-1-yl)benzo[d]isothiazole 1-oxide

N-Methyl Ziprasidone

CAT No: CL-ZPRSD-25 CAS No: 774595-88-9 Mol Wt: 427 Mol F: C22H23ClN4OS Inv Status: Custom Synthesis

Chemical Name: 5-[2-[4-(1,2-Benzisothiazol-3-yl)-1-piperazinyl]ethyl]-6-chloro-1,3-dihydro-1-methyl-2H-indol-2-one

S-Methyl Dihydro Ziprasidone

CAT No: CL-ZPRSD-26 CAS No: 194280-91-6 Mol Wt: 429 Mol F: C22H25ClN4OS Inv Status: Custom Synthesis

Chemical Name: 6-Chloro-5-(2-(4-(imino(2-(methylthio)phenyl)methyl)piperazin-1-yl)ethyl)indolin-2-one

Ziprasidone

CAT No: CL-ZPRSD-27 CAS No: 146939-27-7 Mol Wt: 412.9 Mol F: C21H21ClN4OS Inv Status: Custom Synthesis

Chemical Name: 5-[2-[4-(1,2-Benzisothiazol-3-yl)piperazin-1-yl]ethyl]-6-chloro-1,3-dihydro-2H-indol-2-one

Ziprasidone Impurity 14

CAT No: CL-ZPRSD-28 CAS No: NA Mol Wt: 526.8 Mol F: C26H18Cl3N3O3 Inv Status: Custom Synthesis

Chemical Name: 5,5',5''-(Ethane-1,1,2-triyl)tris(6-chloroindolin-2-one)

Ziprasidone Impurity 15

CAT No: CL-ZPRSD-29 CAS No: NA Mol Wt: 347.2 Mol F: C17H12Cl2N2O2 Inv Status: Custom Synthesis

Chemical Name: 5,5'-Methylenebis(6-chloroindolin-2-one)

Ziprasidone Impurity 16

CAT No: CL-ZPRSD-30 CAS No: 1311090-44-4 Mol Wt: 821.8 Mol F: C42H38Cl2N8O2S2 Inv Status: Custom Synthesis

Chemical Name: (E)-5,5'-bis(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-6,6'-dichloro-[3,3'-biindolinylidene]-2,2'-dione

Ziprasidone Impurity 17

CAT No: CL-ZPRSD-31 CAS No: 37777-71-2 Mol Wt: 215.6 Mol F: C8H6ClNO4 Inv Status: Custom Synthesis

Chemical Name: 2-(4-Chloro-2-nitrophenyl)acetic acid

Ziprasidone Impurity 18

CAT No: CL-ZPRSD-32 CAS No: 177985-31-8 Mol Wt: 185.6 Mol F: C8H8ClNO2 Inv Status: Custom Synthesis

Chemical Name: 2-(2-Amino-4-chlorophenyl)acetic acid

Ziprasidone Impurity 19

CAT No: CL-ZPRSD-33 CAS No: 23031-78-9 Mol Wt: 150.2 Mol F: C7H6N2S Inv Status: Custom Synthesis

Chemical Name: Benzo[d]isothiazol-3-amine

Ziprasidone Impurity 21

CAT No: CL-ZPRSD-34 CAS No: NA Mol Wt: 606.6 Mol F: C31H29Cl2N5O2S Inv Status: Custom Synthesis

Chemical Name: 5-(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-6-chloro-1-(2-(6-chloro-2-oxoindolin-5-yl)ethyl)indolin-2-one

Ziprasidone Impurity 22

CAT No: CL-ZPRSD-35 CAS No: NA Mol Wt: 423.7 Mol F: C20H17Cl3N2O2 Inv Status: Custom Synthesis

Chemical Name: 6-Chloro-1-(2-(6-chloro-2-oxoindolin-5-yl)ethyl)-5-(2-chloroethyl)indolin-2-one

Ziprasidone Impurity 23

CAT No: CL-ZPRSD-36 CAS No: 22961-84-8 Mol Wt: 206.3 Mol F: C11H14N2S Inv Status: Custom Synthesis

Chemical Name: N,N-Diethylbenzo[d]isothiazol-3-amine

Ziprasidone Impurity 24

CAT No: CL-ZPRSD-37 CAS No: NA Mol Wt: 244.1 Mol F: C10H7Cl2NO2 Inv Status: Custom Synthesis

Chemical Name: 6-Chloro-7-(2-chloroacetyl)indolin-2-one

Ziprasidone Impurity 25

CAT No: CL-ZPRSD-38 CAS No: NA Mol Wt: 228.1 Mol F: C10H7Cl2NO Inv Status: Custom Synthesis

Chemical Name: 6-Chloro-5-(2-chlorovinyl)indolin-2-one

Ziprasidone Impurity 26

CAT No: CL-ZPRSD-39 CAS No: 131540-88-0 Mol Wt: 251.3 Mol F: C11H13N3O2S Inv Status: Custom Synthesis

Chemical Name: 3-(Piperazin-1-yl)benzo[d]isothiazole 1,1-dioxide

Ziprasidone Impurity 3

CAT No: CL-ZPRSD-40 CAS No: 160384-40-7 Mol Wt: 460.9 Mol F: C21H21ClN4O4S Inv Status: Custom Synthesis

Chemical Name: 2-(5-(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-4-chloro-2-nitrophenyl)acetic acid

Ziprasidone Impurity 4

CAT No: CL-ZPRSD-41 CAS No: 1797879-13-0 Mol Wt: 418.9 Mol F: C19H19ClN4O3S Inv Status: Custom Synthesis

Chemical Name: 5-[2-[4-(1,2-Benzisothiazol-3-yl)-1-piperazinyl]ethyl-4-chloro-2-nitrophenol

Ziprasidone Impurity 6

CAT No: CL-ZPRSD-42 CAS No: 160384-37-2 Mol Wt: 435.3 Mol F: C19H16Cl2N4O2S Inv Status: Custom Synthesis

Chemical Name: 3-[4-[2-(2,5-Dichloro-4-nitrophenyl)ethenyl]-1-piperazinyl]-1,2-benzisothiazole

Ziprasidone Impurity 7

CAT No: CL-ZPRSD-43 CAS No: 160384-38-3 Mol Wt: 437.3 Mol F: C19H18Cl2N4O2S Inv Status: Custom Synthesis

Chemical Name: 3-[4-[2-(2,5-Dichloro-4-nitrophenyl)ethyl]-1-piperazinyl]-1,2-benzisothiazole

Ziprasidone Impurity 8

CAT No: CL-ZPRSD-44 CAS No: 2514708-83-7 Mol Wt: 287.8 Mol F: C11H14ClN3O2S Inv Status: Custom Synthesis

Chemical Name: 1-(1-oxidobenzo[d]isothiazol-3-yl)piperazine 1-oxide hydrochloride

Ziprasidone Sulfone

CAT No: CL-ZPRSD-46 CAS No: 188797-77-5 Mol Wt: 444.9 Mol F: C21H21ClN4O3S Inv Status: Custom Synthesis

Chemical Name: 6-Chloro-5-(2-(4-(1,1-dioxidobenzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)indolin-2-one

Ziprasidone EP Impurity D

CAT No: CL-ZPRSD-47 CAS No: 1303996-68-0 Mol Wt: 839.9 Mol F: C42H40Cl2N8O3S2 Inv Status: Custom Synthesis

Chemical Name: 5,5'-bis(2-(4-(benzo[d]isothiazol-3-yl)piperazin-1-yl)ethyl)-6,6'-dichloro-3-hydroxy-[3,3'-biindoline]-2,2'-dione

Type:Impurity Reference Standard

Total Products: 46

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