Bulk Compounds

Following compounds are available in bulk quantity, apart from their standard pack sizes. We have a bulk manufacturing capacity of producing minimum daily quantity of 10kg and upwards.

Recently Searched Impurities

Fenofibrate EP Impurity G

CAS No.: 217636-48-1
Molecular Formula: C₂₄H₂₇ClO₆
Molecular Weight: 446.92
CAT No.: CS-T-23519
Stock: In-stock

Mycophenolate Mofetil EP Impurity E

CAS No.: 31858-66-9
Molecular Formula: C₁₈H₂₂O₆
Molecular Weight: 334.37
CAT No.: CS-T-58368
Stock: In-stock

Bumetanide EP impurity B

CAS No.: 28328-54-3
Molecular Formula: C₁₃H₁₂N₂O₅S
Molecular Weight: 308.31
CAT No.: CS-T-15727
Stock: In-stock

Bepotastine Isopropyl ester

CAS No.: 1807607-93-7
Molecular Formula: C₂₄H₃₁ClN₂O₃
Molecular Weight: 430.97
CAT No.: CS-O-16620
Stock: In-stock

N-Nitroso N-Desmethyl-Chlorpheniramine

CAS No.: --
Molecular Formula: C₁₅H₁₆ClN₃O
Molecular Weight: 289.76
CAT No.: CS-O-39269
Stock: In-stock

Docusate Sodium Related Compound B Sodium Salt

CAS No.: 86878-53-7
Molecular Formula: C12H20Na2O7S
Molecular Weight: 354.33
CAT No.: CS-P-00959
Stock: In-stock

N-Nitroso Mirtazapine EP Impurity D

CAS No.: --
Molecular Formula: C₁₆H₁₆N₄O
Molecular Weight: 280.32
CAT No.: CS-EO-02307
Stock: In-stock

N,N-Dimethylthiocarbamoyl Chloride

CAS No.: 16420-13-6
Molecular Formula: --
Molecular Weight: --
CAT No.: CS-O-10660
Stock: In-stock

Iso Cyclosporin H Trifluoroacetic Acid Salt (>75% by HPLC)

CAS No.: 83602-43-1 free amine
Molecular Formula: C₆₂H₁₁₁N₁₁O₁₂ • x( C₂HF₃O₂)
Molecular Weight: 1202.61 + x(114.02)
CAT No.: CS-T-93858
Stock: In-stock

Darifenacin Pyrrolidinium Dimer acetonitrile Impurity

CAS No.: --
Molecular Formula: C₃₈H₃₉BrN₂O₂
Molecular Weight: 635.63
CAT No.: CS-O-15821
Stock: In-stock


CAS No.: 65733-16-6
Molecular Formula: C₁₉H₃₄O₃
Molecular Weight: 310.47
CAT No.: CS-P-01678
Stock: In-stock


CAS No.: --
Molecular Formula: C10H15N3O5S3
Molecular Weight: 353.44
CAT No.: CS-O-38645
Stock: In-stock

Darunavir СВZ furan impurity

CAS No.: --
Molecular Formula: C₃₅H₄₃N₃O₉S
Molecular Weight: 681.80
CAT No.: CS-O-12039
Stock: In-stock

N-Desethyl Sunitinib

CAS No.: 356068-97-8
Molecular Formula: C₂₀H₂₃FN₄O₂
Molecular Weight: 370.42
CAT No.: CS-T-15943
Stock: In-stock

Sitagliptin Fumarate Adduct

CAS No.: 2088771-60-0
Molecular Formula: C₂₀H₁₉F₆N₅O₅
Molecular Weight: 523.39
CAT No.: CS-O-16256
Stock: In-stock

Alfuzosin EP Impurity A Hydrochloride

CAS No.: 98902-29-5
Molecular Formula: C19H23N5O4 : HCl
Molecular Weight: 385.4 : 36.5
CAT No.: CS-O-07133
Stock: In-stock

Flunixin impurity A

CAS No.: 2942-59-8
Molecular Formula: C₆H₄ClNO₂
Molecular Weight: 157.55
CAT No.: CS-O-03603
Stock: In-stock

Losartan Potassium EP Impurity H

CAS No.: 133909-99-6
Molecular Formula: C₄₁H₃₇ClN₆O
Molecular Weight: 665.23
CAT No.: CS-T-62580
Stock: In-stock


CAS No.: 1867-73-8
Molecular Formula: C₁₁H₁₅N₅O₄
Molecular Weight: 281.27
CAT No.: CS-DL-00984
Stock: In-stock

m-Cresol-4-Sulfonic Acid Ammonium Salt

CAS No.: --
Molecular Formula: C7H11NO4S
Molecular Weight: 204.23
CAT No.: CS-O-14027
Stock: In-stock

methyl 2-hydroxy-2-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodophenyl)acetate

CAS No.: 2086266-85-3
Molecular Formula: C₁₅H₁₀I₄O₅
Molecular Weight: 777.85
CAT No.: CS-O-34040
Stock: In-stock

Atorvastatin Pyrrolidone Impurity

CAS No.: 906552-19-0
Molecular Formula: C33H33FN2O5
Molecular Weight: 556.62
CAT No.: CS-P-03231
Stock: In-stock

Hydroxyimino Bromazepam

CAS No.: --
Molecular Formula: C₁₄H₉BrN₄O₂
Molecular Weight: 345.15
CAT No.: CS-O-40471
Stock: In-stock

Metoprolol Related Compound D

CAS No.: 1486464-40-7
Molecular Formula: C₂₇H₄₂ClNO₆
Molecular Weight: 512.08
CAT No.: CS-T-93705
Stock: In-stock

Finerenone acid impurity

CAS No.: 2640506-74-5
Molecular Formula: C₂₁H₂₁N₃O₄
Molecular Weight: 379.41
CAT No.: CS-O-46733
Stock: In-stock

Seliciclib Carboxylic Acid

CAS No.: 482615-12-3
Molecular Formula: C₁₉H₂₄N₆O₂
Molecular Weight: 368.43
CAT No.: CS-O-34424
Stock: In-stock

trans-p-Coumaric Acid

CAS No.: 501-98-4
Molecular Formula: C₉H₈0₃
Molecular Weight: 164.16
CAT No.: CS-T-13394
Stock: In-stock

Beta-Epoxyabiraterone acetate

CAS No.: 2484719-26-6
Molecular Formula: C₂₆H₃₃NO₃
Molecular Weight: 407.6
CAT No.: CS-EO-01112
Stock: In-stock

Aspirin Impurity B

CAS No.: 636-46-4
Molecular Formula: C₈H₆O₅
Molecular Weight: 182.13
CAT No.: CS-O-31086
Stock: In-stock

Fluticasone O-Fluoro Methyl Ester

CAS No.: 572880-17-2
Molecular Formula: C₂₇H₂₉F₃O₇
Molecular Weight: 522.51
CAT No.: CS-O-36750
Stock: In-stock

Sodium selenate

CAS No.: 13410-01-0
Molecular Formula: Na₂SeO₄
Molecular Weight: 188.94
CAT No.: CS-CG-00198
Stock: In-stock

Moxifloxacin Related Compound G HCl salt

CAS No.: 1394029-14-1
Molecular Formula: C₂₁H₂₅ClFN₃O₄
Molecular Weight: 437.89
CAT No.: CS-O-11923
Stock: In-stock


CAS No.: 41526-21-0
Molecular Formula: C14H10BrClN2O2
Molecular Weight: 353.6
CAT No.: CS-T-67874
Stock: In-stock

Loratadine EP Impurity A

CAS No.: 133284-74-9
Molecular Formula: C₂₂H₂₅ClN₂O₃
Molecular Weight: 400.90
CAT No.: CS-CB-00047
Stock: In-stock

Pramipexole EP Impurity A

CAS No.: 106092-09-5
Molecular Formula: C₇H₁₁N₃S
Molecular Weight: 169.25
CAT No.: CS-O-31894
Stock: In-stock

Venlafaxine EP Impurity C

CAS No.: 130198-05-9
Molecular Formula: C₁₅H₂₄ClNO₂
Molecular Weight: 285.81
CAT No.: CS-O-08417
Stock: In-stock


CAS No.: 865466-24-6
Molecular Formula: --
Molecular Weight: --
CAT No.: CS-O-14353
Stock: In-stock

Tranexamic EP Impurity B

CAS No.: 1197-17-7
Molecular Formula: C₈H₁₅NO₂
Molecular Weight: 157.21
CAT No.: CS-O-08353
Stock: In-stock

Nadolol EP Impurity A

CAS No.: --
Molecular Formula: C₁₃H₁₈O₅
Molecular Weight: 254.28
CAT No.: CS-O-13050
Stock: In-stock

Tramadol EP Impurity C Hydrochloride

CAS No.: 66170-31-8
Molecular Formula: C16H24ClNO
Molecular Weight: 281.82
CAT No.: CS-O-03639
Stock: In-stock

Miconazole Related Compound I

CAS No.: 24169-00-4
Molecular Formula: C₁₈H₁₆Cl₃N₃O₄
Molecular Weight: 444.7
CAT No.: CS-BX-00673
Stock: In-stock

Ipratropium EP Impurity E

CAS No.: 22235-81-0
Molecular Formula: C₁₉H₂₇NO₃
Molecular Weight: 317.42
CAT No.: CS-O-16107
Stock: In-stock

Empagliflozin Impurity 50

CAS No.: 1800196-45-5
Molecular Formula: C₁₈H₁₈BrClO₃
Molecular Weight: 397.69
CAT No.: CS-O-38275
Stock: In-stock

Rivastigmine Impurity A

CAS No.: 32634-68-7
Molecular Formula: C₂₀H₁₈O₈
Molecular Weight: 386.35
CAT No.: CS-T-53920
Stock: In-stock

Trimetazidine Impurity B

CAS No.: 1257-19-8
Molecular Formula: C24H34N2O6
Molecular Weight: 446.6
CAT No.: CS-T-26071
Stock: In-stock

Sildenafil Citrate Impurity 3

CAS No.: 332374-45-5
Molecular Formula: C₂₂H₃₂N₆O₄S
Molecular Weight: 476.6
CAT No.: CS-O-14094
Stock: In-stock

Zuclopenthixol acetate

CAS No.: 85721-05-7
Molecular Formula: C24H27ClN2O2S
Molecular Weight: 443.14
CAT No.: CS-O-02591
Stock: In-stock

Dichloro(p-cymene)ruthenium(II) Dimer

CAS No.: 52462-29-0
Molecular Formula: C20H28Cl4Ru2
Molecular Weight: 612.39
CAT No.: CS-T-52578
Stock: In-stock

Frovatriptan Nitroso Impurity 2

CAS No.: --
Molecular Formula: C₁₄H₁₆N₄O₂
Molecular Weight: 272.31
CAT No.: CS-EO-02835
Stock: In-stock

Isopropylidene Ziprasidone

CAS No.: 684269-12-3
Molecular Formula: C₂₄H₂₅ClN₄OS
Molecular Weight: 453.00
CAT No.: CS-O-16782
Stock: In-stock

Rifaximin EP Impurity D

CAS No.: --
Molecular Formula: C₄₃H₄₉N₃O₁₂
Molecular Weight: 799.86
CAT No.: CS-O-14278
Stock: In-stock

Fenofibric Acid Methyl Ester

CAS No.: 42019-07-8
Molecular Formula: C18H17Cl04
Molecular Weight: 332.8
CAT No.: CS-T-23518
Stock: In-stock

Uridine Diphosphate Choline (UDPC)

CAS No.: 99492-83-8
Molecular Formula: C₁₄H₂₆ClN₃O₁₂P₂
Molecular Weight: 525.77
CAT No.: CS-P-00891
Stock: In-stock


CAS No.: 203002-58-8
Molecular Formula: C23H27N3O6
Molecular Weight: 441.48
CAT No.: CS-O-10004
Stock: In-stock

Trospium EP Impurity A

CAS No.: 76-93-7
Molecular Formula: C14H12O3
Molecular Weight: --
CAT No.: CS-T-48649
Stock: In-stock

Ranitidine Impurity F.HCl

CAS No.: 81074-81-9
Molecular Formula: C₈H₁₄ClNO₂
Molecular Weight: 191.66
CAT No.: CS-T-19969
Stock: In-stock

Tenivastatin Calcium hydrate

CAS No.: 530112-57-3
Molecular Formula: C25H40O6• 1/2(Ca) • x(H2O)
Molecular Weight: 474.64
CAT No.: CS-T-93592
Stock: In-stock

Ibuprofen Ethyl Ester

CAS No.: 41283-72-1
Molecular Formula: C₁₅H₂₂O₂
Molecular Weight: 234.33
CAT No.: CS-MM-39791
Stock: In-stock

Paracetamol EP Impurity H

CAS No.: 2623-33-8
Molecular Formula: C₁₀H₁₁NO₃
Molecular Weight: 193.20
CAT No.: CS-T-00256
Stock: In-stock

Montelukast EP impurity E

CAS No.: 1187586-58-8
Molecular Formula: C₄₁H₄₆ClNO₅S₂
Molecular Weight: 732.39
CAT No.: CS-O-11859
Stock: In-stock

Nateglinide EP Impurity E

CAS No.: --
Molecular Formula: C₁₈H₂₅NO₃
Molecular Weight: 303.40
CAT No.: CS-O-13902
Stock: In-stock

Acesulfame Potassium EP Impurity B

CAS No.: 72827-08-8
Molecular Formula: C4H4ClNO4S
Molecular Weight: 197.6
CAT No.: CS-T-11094
Stock: In-stock

Colchicine EP Impurity A

CAS No.: 7411-12-3
Molecular Formula: C21H23NO6
Molecular Weight: 385.41
CAT No.: CS-T-14495
Stock: In-stock

Dapagliflozin Impurity 21

CAS No.: --
Molecular Formula: C₂₉H₃₃ClO₁₀
Molecular Weight: 577.02
CAT No.: CS-P-08101
Stock: In-stock

Exemestane Related Compound B

CAS No.: 184972-09-6
Molecular Formula: C20H26O3
Molecular Weight: 314.43
CAT No.: CS-P-07828
Stock: In-stock

Acryloyl Chloride

CAS No.: 814-68-6
Molecular Formula: --
Molecular Weight: --
CAT No.: CS-T-01292
Stock: In-stock

Aceclofenac EP Impurity D

CAS No.: 139272-66-5
Molecular Formula: C17H15Cl2NO4
Molecular Weight: 368.21
CAT No.: CS-O-07100
Stock: In-stock


CAS No.: 2349386-89-4
Molecular Formula: C₁₃H₁₉N₃O₇
Molecular Weight: 329.31
CAT No.: CS-N-04590
Stock: In-stock

Cinnarizine EP Impurity B

CAS No.: 750512-44-8
Molecular Formula: C₂₆H₂₈N₂
Molecular Weight: 368.51
CAT No.: CS-O-07634
Stock: In-stock

N-Desmethyl Azatadine

CAS No.: 38092-95-4
Molecular Formula: C19H20N2
Molecular Weight: 276.38
CAT No.: CS-T-88387
Stock: In-stock

Tacrolimus Diene

CAS No.: 104987-16-8
Molecular Formula: C₄₄H₆₇NO₁₁
Molecular Weight: 786.00 g/mol
CAT No.: CS-P-00144
Stock: In-stock

Methoxy Adrenaline Hydrochloride

CAS No.: 74571-90-7
Molecular Formula: C₁₀H₁₆ClNO₃
Molecular Weight: 233.69
CAT No.: CS-T-80562
Stock: In-stock

N-nitroso Lercanidipine

CAS No.: --
Molecular Formula: C₃₆H₄₀N₄O₇
Molecular Weight: 640.73
CAT No.: CS-O-39128
Stock: In-stock

Diethyl Disulfide

CAS No.: 110-81-6
Molecular Formula: C₄H₁₀S₂
Molecular Weight: 122.25
CAT No.: CS-T-52803
Stock: In-stock

Torsemide Impurity C

CAS No.: 58155-35-4
Molecular Formula: C₁₅H₁₈N₄O₃S
Molecular Weight: 334.39
CAT No.: CS-T-54423
Stock: In-stock

Regorafenib Impurity 4

CAS No.: 1855006-12-0
Molecular Formula: C₂₀H₁₈FN₅O₃
Molecular Weight: 395.39
CAT No.: CS-O-10978
Stock: In-stock

Cladribine Impurity F

CAS No.: 619-55-6
Molecular Formula: C₈H₉NO
Molecular Weight: 135.16
CAT No.: CS-P-00895
Stock: In-stock

Levodopa Related Compound A

CAS No.: 27244-64-0
Molecular Formula: C9H11NO5
Molecular Weight: 213.2
CAT No.: CS-T-27246
Stock: In-stock

N-Nitroso Celiprolol

CAS No.: --
Molecular Formula: C₂₀H₃₂N₄O₅
Molecular Weight: 408.5
CAT No.: CS-EO-01225
Stock: In-stock

Descloro Etoricoxib

CAS No.: 1350206-14-2
Molecular Formula: C₁₈H₁₆N₂O₂S
Molecular Weight: 324.40
CAT No.: CS-EO-00074
Stock: In-stock

Penicillin G Sodium Salt

CAS No.: 69-57-8
Molecular Formula: C₁₆H₁₇N₂NaO₄S
Molecular Weight: 356.37
CAT No.: CS-T-38837
Stock: In-stock

Aceclofenac EP Impurity E

CAS No.: 139272-67-6
Molecular Formula: C₁₈H₁₇Cl₂NO₄
Molecular Weight: 382.24
CAT No.: CS-O-07101
Stock: In-stock

Metamizole Impurity A

CAS No.: 1672-58-8
Molecular Formula: C₁₂H₁₃N₃O₂
Molecular Weight: 231.25
CAT No.: CS-O-31126
Stock: In-stock

Cladribine EP Impurity A

CAS No.: 4546-70-7
Molecular Formula: C₁₀H₁₄N₆O₃
Molecular Weight: 266.26
CAT No.: CS-T-52425
Stock: In-stock

AFP-Picolin Methylamide Impurity

CAS No.: 757251-39-1
Molecular Formula: C₁₃H₁₂FN₃O₂
Molecular Weight: 261.25
CAT No.: CS-O-11141
Stock: In-stock

Diosmin EP Impurity E

CAS No.: 480-36-4
Molecular Formula: C₂₈H₃₂O₁₄
Molecular Weight: 592.54
CAT No.: CS-O-13588
Stock: In-stock

Fenofibric Acid Ethyl Ester

CAS No.: 42019-08-9
Molecular Formula: C19H19ClO4
Molecular Weight: 346.8
CAT No.: CS-T-23517
Stock: In-stock


CAS No.: 6893-02-3
Molecular Formula: C₁₅H₁₂I₃NO₄
Molecular Weight: 650.97
CAT No.: CS-O-31028
Stock: In-stock


CAS No.: 552-41-0
Molecular Formula: --
Molecular Weight: --
CAT No.: CS-E-00301
Stock: In-stock

Chloro Sofosbuvir Desphosphate

CAS No.: 1496551-72-4
Molecular Formula: C10H13ClN2O5
Molecular Weight: 276.67
CAT No.: CS-O-15621
Stock: In-stock


CAS No.: 519-32-4
Molecular Formula: C8H10N4O2
Molecular Weight: 194.2
CAT No.: CS-T-29687
Stock: In-stock

Tadalafil Impurity H

CAS No.: 1978322-98-3
Molecular Formula: C₂₂H₁₉N₃O₆
Molecular Weight: 421.40
CAT No.: CS-T-43082
Stock: In-stock

Bicalutamide EP Impurity D

CAS No.: 654-70-6
Molecular Formula: C₈H₅F₃N₂
Molecular Weight: 186.13
CAT No.: CS-O-07361
Stock: In-stock

N-formyl fluoxetine

CAS No.: 199188-97-1
Molecular Formula: C₁₈H₁₈F₃NO₂
Molecular Weight: 337.34
CAT No.: CS-DN-00008
Stock: In-stock

Ezetimibe Dides fluoro impurity

CAS No.: --
Molecular Formula: C₂₀H₂₁NO₄
Molecular Weight: 339.39
CAT No.: CS-O-15762
Stock: In-stock

Clindamycin B

CAS No.: 18323-43-8
Molecular Formula: C₁₇H₃₁ClN₂O₅S
Molecular Weight: 410.96
CAT No.: CS-T-51187
Stock: In-stock

Torsemide carboxylic acid HCl salt

CAS No.: 113844-99-8(Free base)
Molecular Formula: C16H19ClN4O5S
Molecular Weight: 414.86
CAT No.: CS-O-37597
Stock: In-stock

Cetirizine EP Impurity E

CAS No.: 682323-77-9
Molecular Formula: C23H29ClN2O4
Molecular Weight: 432.94
CAT No.: CS-CB-00053
Stock: In-stock

Albendazole EP Impurity F

CAS No.: 80983-45-5
Molecular Formula: C₁₀H₁₁N₃O₂S
Molecular Weight: 237.28
CAT No.: CS-O-07131
Stock: In-stock

Tramadol EP Impurity B

CAS No.: 66170-32-9
Molecular Formula: C₁₆H₂₄ClNO
Molecular Weight: 281.82
CAT No.: CS-O-03638
Stock: In-stock