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Clearsynth is a leading innovator in pharmaceutical reference standards, offering high-quality Reference Standards for Benzenesulfonate, including both pharmacopeial and non-pharmacopeial impurities, metabolites, stable isotope products, and nitrosamines (N-NO products). Our Benzenesulfonate impurity reference standards are invaluable for pharmaceutical research, supporting product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They also aid in identifying unknown impurities and assessing genotoxic potential.
Our Benzenesulfonate-related products undergo thorough characterization and are supplied with detailed Certificates of Analysis (COA) and analytical data that meet regulatory requirements. All supplied products are re-tested at regular intervals to ensure ongoing quality and compliance.

Benzenesulfonate Related Compounds

Stable Isotopes

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
(3-exo)-3-[3-Methyl-5-(1-methylethyl-D6)-4H-1,2,4-triazol-4-... Stable Isotopes CS-T-99973 2124272-07-5(Free base) Enquire
(R)-Laudanosine-d3 N-3-((5-Hydroxypentyl)oxy)-3-oxopropyl Be... Stable Isotopes CS-T-96759 Not Available Enquire
2-(4-((2-Isopropoxyethoxy)methyl)phenoxy)propane-1,3-diyl-d5... Stable Isotopes CS-T-100133 Not Available Enquire
Amlodipine benzenesulfonate 13C6 Stable Isotopes CS-CX-00107 1261392-82-8 Enquire
Amlodipine benzenesulfonate D3 Stable Isotopes CS-CX-00108 219125-17-4 Enquire
Amlodipine benzenesulfonate, racemic mixture 13C Stable Isotopes CS-EK-00810 111470-99-6 unlabeled Enquire
cis-1-[(3,4-Dimethoxyphenyl)methyl]-1,2,3,4-tetrahydro-6,7-d... Stable Isotopes CS-T-97577 2803857-42-1(Unlabelled) Enquire
Cisatracurium-d6-20-methyl Dibenzenesulfonate Stable Isotopes CS-T-99325 Not Available Enquire
Ethyl Benzenesulfonate-13C6 Stable Isotopes CS-T-98850 Not Available Enquire
Hydroxypropanenitrile 4-methylbenzenesulfonate-13C3 Stable Isotopes CS-T-78012 1391053-37-4 Enquire
Methyl Benzenesulfonate-13C6 Stable Isotopes CS-T-98842 Not Available Enquire
Methyl-13CD3 2-Nitrobenzenesulfonate Stable Isotopes CS-T-101100 Not Available Enquire


Impurities

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"(1R)-1-(3,4-Dimethoxyphenyl)-4-hydroxy-2-cyclohexene-1-etha... Impurities CS-T-53500 866394-50-5 Enquire
"(3α,5R,6β,20S)-6-Methoxy-3,5-cyclopregnane-30-met... Impurities CS-T-57657 51231-24-4 Enquire
"4-Methylbenzenesulfonate L-Phenylalanine 2,2,2-Trichloroeth... Impurities CS-T-57982 69472-84-0 Enquire
(2R,3aR,7aR)-benzyl octahydro-1H-indole-2-carboxylate 4-meth... Impurities CS-O-54880 Not Available Enquire
(R,S,R) Edoxaban 4-Methylbenzenesulfonate Impurities CS-O-51273 2605225-75-8 Enquire
(S)-1-(2-Aminoacetyl)-4,4-difluoropyrrolidine-2-carbonitrile... Impurities CS-MM-51546 1584652-36-7 Enquire
(S)-4-(1-Hydrazinylethyl)benzoic Acid Ethyl Ester Benzenesul... Impurities CS-T-55713 934495-38-2 Enquire
(S)-dimethyl 2-(4-(2-(2-amino-4-oxo-4,7-dihydro-1H-pyrrolo[2... Impurities CS-O-38430 1265908-56-2 Enquire
2-((1r,4r)-4-(3,3-Dimethylureido)cyclohexyl)ethyl 4-Methylbe... Impurities CS-T-95856 1698050-46-2 Enquire
2-(thiophen-2-yl)ethyl benzenesulfonate Impurities CS-O-38149 85567-51-7 Enquire
2-Cyano-2-methylpropyl 4-methylbenzenesulfonate Impurities CS-M-25539 157736-55-5 Enquire
3-hydroxy-3-methylbutyl 4-methylbenzenesulfonate Impurities CS-DL-00673 17689-66-6 Enquire
4-(1-((1-hydroxy-2-methylpropan-2-yl)amino)-2-methyl-1-oxopr... Impurities CS-O-56439 Not Available Enquire
4-(4-Methylbenzenesulfonate)-4-isoquinolinol Impurities CS-T-81925 1532-82-7 Enquire
Cisatracurium-20-methyl Dibenzenesulfonate Impurities CS-T-72112 1193104-85-6 Enquire
methyl 3-nitro-4-(((tetrahydro-2H-pyran-4-yl)methyl)amino)be... Impurities CS-O-36796 Not Available Enquire
platinum(2+) bis(4-methylbenzenesulfonate)-cyclohexane-1,2-d... Impurities CS-O-11016 65296-78-8 Enquire
Propyl Benzenesulfonate Impurities CS-T-40758 80-42-2 Enquire


Intermediates

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
"(1,1-Dioxidotetrahydrothiopyran-4-yl)methyl 4-Methylbenzene... Intermediates CS-DJ-00290 928149-12-6 Enquire
"[1-(3,4-dichlorobenzoyl)-4-fluoro-4-piperidinyl]methyl 2,4,... Intermediates CS-EL-17243 477857-56-0 Enquire
"[1-(3,4-dichlorobenzoyl)-4-fluoro-4-piperidinyl]methyl 4-fl... Intermediates CS-EL-15844 477857-55-9 Enquire
"1,4-Dioxaspiro[4.5]decan-8-yl 4-methylbenzenesulfonate" Intermediates CS-AC-11719 23511-05-9 Enquire
"1,5-Dimethyl-4-hexenyl 4-methylbenzenesulfonate1,5-Dimethyl... Intermediates CS-T-20684 4582-61-0 Enquire
"2-(2-Oxo-1,3-oxazolan-3-yl)ethyl 4-methylbenzenesulfonate" Intermediates CS-M-32760 159974-55-7 Enquire
"2,2'-Ethylenebis(5-aminobenzenesulfonate) Disodium Salt" Intermediates CS-T-54447 4285-28-3 Enquire
"2,3,4,5,6-Pentafluorophenyl 4-methylbenzenesulfonate" Intermediates CS-M-30404 2069-36-5 Enquire
"2-[5-cyano-2,4-dioxo-3,4-dihydro-1(2H)-pyrimidinyl]ethyl 4-... Intermediates CS-EL-01468 106271-61-8 Enquire
"3,6,9,12,15-Pentaoxaoctadec-17-yn-1-ol 1-Benzenesulfonate" Intermediates CS-T-60251 1215741-85-7 Enquire
"3-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]-1-propanol, 4nitr... Intermediates CS-O-32151 220299-14-9 Enquire
"4-[(1,3-benzodioxol-5-ylmethylene)amino]phenyl 4-(tert-buty... Intermediates CS-EL-30762 329778-26-9 Enquire
"5,6,7,7a-tetrahydrothieno[3,2-c]pyridin-2(4H)-one 4-methylb... Intermediates CS-CB-00023 952340-39-5 Enquire
(1-Acetylpiperidin-4-yl)methyl 4-methylbenzenesulfonate Intermediates CS-ED-36072 846057-25-8 Enquire
(1-Acetylpyrrolidin-3-yl)methyl 4-methylbenzenesulfonate Intermediates CS-ED-36587 1353979-05-1 Enquire
(1-Benzyl-4-cyanopiperidin-4-yl)methyl 4-methylbenzenesulfon... Intermediates CS-ED-15023 270257-39-1 Enquire
(1R,2S)-1-amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanec... Intermediates CS-ED-03527 1028252-16-5 Enquire
(3-(Benzyloxy)-1-cyanocyclobutyl)-methyl 4-methylbenzenesulf... Intermediates CS-ED-16235 1181816-15-8 Enquire
(3-Methyl-3-oxetanyl)methyl4-methylbenzenesulfonate Intermediates CS-M-34441 99314-44-0 Enquire
(3R)-Tetrahydrofuran-3-yl 4-Methylbenzenesulfonate Intermediates CS-T-86831 219823-47-9 Enquire
(3ß)-Cholest-5-ene-3,24-diol 24-Methylbenzenesulfonate 3-O-T... Intermediates CS-T-51100 70141-04-7 Enquire
(R)-Benzyl 2-amino-3-(4-hydroxyphenyl)propanoate 4-methylben... Intermediates CS-ED-17163 97984-63-9 Enquire
(r)-Dibenzyl 2-aminosuccinate 4-methylbenzenesulfonate Intermediates CS-ED-11678 4079-64-5 Enquire
1-Aminopyrazin-1-ium 2,4,6-trimethylbenzenesulfonate Intermediates CS-ED-08147 57489-85-7 Enquire
1-Chloro-2-propanol 2-(4-methylbenzenesulfonate) Intermediates CS-T-72143 54619-32-8 Enquire
2-(Oxan-4-yl)ethyl 4-methylbenzenesulfonate Intermediates CS-AC-12396 959748-73-3 Enquire
2,3,4,5,6-Pentafluorophenyl 4-bromo-2-chlorobenzenesulfonate Intermediates CS-M-30869 886361-22-4 Enquire
2,3,4,5,6-Pentafluorophenyl 4-nitrobenzenesulfonate Intermediates CS-M-30397 244633-31-6 Enquire
2,4,6-Trichlorophenyl 4-bromobenzenesulfonate Intermediates CS-ED-34353 934986-62-6 Enquire
2,6-Dimethylpyridine 4-methylbenzenesulfonate Intermediates CS-ED-26748 93471-41-1 Enquire
2-Amino-1-(4-fluoro-3-(trifluoromethyl)phenyl)ethanone 4-met... Intermediates CS-ED-08576 1082951-17-4 Enquire
2-Butynyl 4-methylbenzenesulfonate Intermediates CS-DV-01596 56563-37-2 Enquire
2-Cyclohexylethyl 4-methylbenzenesulfonate Intermediates CS-M-35659 21336-37-8 Enquire
2-Ethoxyethyl 4-methylbenzenesulfonate Intermediates CS-M-35657 17178-11-9 Enquire
2-Ethylhexyl-4-methylbenzenesulfonate Intermediates CS-O-41529 Not Available Enquire
2-Fluoro-1-methylpyridin-1-ium 4-methylbenzenesulfonate Intermediates CS-BF-00409 58086-67-2 Enquire
2-Hydroxy-6-nitro-m-anisaldehyde Benzenesulfonate Intermediates CS-T-79124 2426-60-0 Enquire
2-Phenoxyethyl 4-methylbenzenesulfonate Intermediates CS-M-35660 43224-81-3 Enquire
3-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy}phenyl 2-ch... Intermediates CS-EL-14301 339026-70-9 Enquire
3-Azidopropyl 4-methylbenzenesulfonate Intermediates CS-ED-39248 153207-76-2 Enquire
4-(2-(4,4-Dimethyl-4,5-dihydrooxazol-2-yl)propan-2-yl)phenet... Intermediates CS-BX-00857 202189-76-2 Enquire
4-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]methyl}phenyl 4... Intermediates CS-EL-14249 338416-28-7 Enquire
4-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy}-2-(phenyls... Intermediates CS-EL-14935 338407-47-9 Enquire
4-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy}-2-(phenyls... Intermediates CS-EL-17585 306979-62-4 Enquire
4-cyano-1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-yl benzene... Intermediates CS-EL-04398 956825-56-2 Enquire
4-cyanophenyl 4-{[3-chloro-5-(trifluoromethyl)-2-pyridinyl]o... Intermediates CS-EL-16885 338414-06-5 Enquire
4-ethynylbenzyl 4-methylbenzenesulfonate Intermediates CS-BX-02968 1158998-68-5 Enquire
4-Formyl-1-methyl-pyridinium benzenesulfonate Intermediates CS-AC-11124 82228-89-5 Enquire
4-methylbenzenesulfonate,4-nitrobenzenediazonium Intermediates CS-O-43232 1947-33-7 Enquire
4-Pentyn-2-ol 4-Methylbenzenesulfonate Intermediates CS-T-39042 58456-48-7 Enquire
5-Bromo-2-methoxyphenyl benzenesulfonate Intermediates CS-T-69939 1150271-32-1 Enquire
Ammonium 5-methoxy-2-methyl-4-(3-oxobutanamido)benzenesulfon... Intermediates CS-ED-09492 72705-22-7 Enquire
Ammonium benzenesulfonate Intermediates CS-M-58134 19402-64-3 Enquire
Barium pentafluorobenzenesulfonate Intermediates CS-ED-11874 71735-31-4 Enquire
Benzyl 4-aminobutanoate 4-methylbenzenesulfonate Intermediates CS-ED-14871 26727-22-0 Enquire
Benzyl Benzenesulfonate Intermediates CS-T-05439 38632-84-7 Enquire
ethyl 4-nitrobenzenesulfonate Intermediates CS-ED-00418 15481-55-7 Enquire
Ivacaftor benzenesulfonate Intermediates CS-ED-05163 1134822-09-5 Enquire
LSD1-IN-7 (benzenesulfonate) Intermediates CS-ED-01370 2097523-60-7 Enquire
Methyl 4-(bromomethyl)benzenesulfonate Intermediates CS-ED-30997 89980-97-2 Enquire
Methyl 4-dodecylbenzenesulfonate Intermediates CS-O-16111 68506-75-2 Enquire
Methyl 4-nitrobenzenesulfonate Intermediates CS-EC-00049 6214-20-6 Enquire
Methyl Benzenesulfonate Intermediates CS-O-01899 80-18-2 In Stock
N,N-Dimethylpyridin-4-amine 4-methylbenzenesulfonate Intermediates CS-ED-27337 91944-64-8 Enquire
Neopentyl 4-bromobenzenesulfonate Intermediates CS-AC-11551 14248-15-8 Enquire
Neopentyl benzenesulfonate Intermediates CS-AC-11563 75620-67-6 Enquire
Octadecyl 4-Chlorobenzenesulfonate Intermediates CS-T-37823 34184-41-3 Enquire
Oxetan-3-yl 4-methylbenzenesulfonate Intermediates CS-M-50449 26272-83-3 Enquire
p-Bromobenzenesulfonate Reserpic Acid Methyl Ester Intermediates CS-T-49617 1262-67-5 Enquire
Phenyl 4-bromobenzenesulfonate Intermediates CS-AC-11765 5455-14-1 Enquire
Potassium 2-(trifluoromethyl)benzenesulfonate Intermediates CS-ED-33869 917560-97-5 Enquire
Sodium (C10-16)alkylbenzenesulfonate Intermediates CS-O-46289 68081-81-2 Enquire
Sodium 2-(2-amino-4-chlorophenoxy)-5-chlorobenzenesulfonate Intermediates CS-ED-39944 136213-81-5 Enquire
Sodium 2,5-dihydroxybenzenesulfonate Intermediates CS-ED-34089 10021-55-3 Enquire
SODIUM 2-METHYLBENZENESULFONATE Intermediates CS-BX-00586 15046-75-0 Enquire
Sodium 3-dodecylbenzenesulfonate Intermediates CS-O-49414 19589-59-4 Enquire
Sodium 3-hydroxybenzenesulfonate Intermediates CS-ED-11946 14278-60-5 Enquire
Sodium 3-Nitrobenzenesulfonate Intermediates CS-T-85286 127-68-4 Enquire
Sodium 4,4'-(1,10-phenanthroline-4,7-diyl)dibenzenesulfonate... Intermediates CS-ED-16551 949162-66-7 Enquire
Sodium 4-[(4-anilinophenyl)diazenyl]-benzenesulfonate Intermediates CS-M-42974 554-73-4 Enquire
Sodium 4-hydroxybenzenesulfonate dihydrate Intermediates CS-ED-33234 10580-19-5 Enquire
Sodium Dodecylbenzenesulfonate (soft type) (LAS 10-14) Intermediates CS-AZ-00220 69669-44-9 Enquire
Sodium p-n-dodecylbenzenesulfonate Intermediates CS-AZ-00221 2211-98-5 Enquire
Sodium p-n-tridecylbenzenesulfonate Intermediates CS-AZ-00223 14356-40-2 Enquire
Sodium p-n-undecylbenzenesulfonate Intermediates CS-AZ-00224 20466-34-6 Enquire
Thieno[3,2-c]pyridine 4-Methylbenzenesulfonate Intermediates CS-T-86487 153075-10-6 Enquire
trans-4-((tert-Butoxycarbonyl)amino)cyclohexyl 4-methylbenze... Intermediates CS-ED-22189 957035-42-6 Enquire


Fine Chemicals

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
2-(2-(Benzyloxy)ethoxy)ethyl 4-methylbenzenesulfonate Fine Chemicals CS-ED-01904 98627-22-6 Enquire
2-Methoxyethyl 4-methylbenzenesulfonate Fine Chemicals CS-M-35658 17178-10-8 Enquire
6-((tert-butoxycarbonyl)amino)hexyl 4-methylbenzenesulfonate Fine Chemicals CS-ED-02387 86536-92-7 Enquire
Benzenesulfonate Fine Chemicals CS-ED-02303 3198-32-1 Enquire
Methyl dodecylbenzenesulfonate Fine Chemicals CS-BX-00622 52319-06-9 Enquire
n-Propyl 4-Nitrobenzenesulfonate Fine Chemicals CS-O-59900 1830-67-7 Enquire
Pentyl 4-methylbenzenesulfonate Fine Chemicals CS-O-53993 4450-76-4 Enquire
Potassium 4-iodobenzenesulfonate Fine Chemicals CS-M-30341 13035-63-7 Enquire
Propan-2-yl 4-acetamidobenzenesulfonate Fine Chemicals CS-ED-02081 64704-17-2 Enquire
Sodium 4-formylbenzenesulfonate Fine Chemicals CS-MM-10100 13736-22-6 Enquire
Sodium benzenesulfonate Fine Chemicals CS-O-11156 515-42-4 In Stock
Trimebutine 3-thiocarbamoylbenzenesulfonate Fine Chemicals CS-ED-02146 1456509-46-8 Enquire


Building Blocks

COMPOUND CATEGORY CAT. No. CAS. No. STOCK STATUS
1,3-Dioxolane-4-methanol, 2-(2,4-dichlorophenyl)-2-(1H-1,2,4... Building Blocks CS-O-46513 113770-65-3 Enquire
1-Benzenesulfonate 1,2-Ethanediol Building Blocks CS-ZE-03563 249285-50-5 In Stock
1-Benzyl-4-methylpiperidin-3-ol 4-methylbenzenesulfonate Building Blocks CS-O-44034 Not Available Enquire
4-methylbenzenesulfonate,4-nitrobenzenediazonium Building Blocks CS-O-43238 1947-33-7 Enquire
ethyl 4-(tert-butyl)benzenesulfonate Building Blocks CS-O-35358 339370-19-3 Enquire
ethyl 4-fluorobenzenesulfonate Building Blocks CS-O-44657 2924-72-3 Enquire
Propyl 4-methylbenzenesulfonate Building Blocks CS-DE-01641 599-91-7 Enquire
Sodium 3,4-dichlorobenzenesulfonate Building Blocks CS-O-43820 38950-28-6 Enquire