Product Categories
| Country: | China |
|---|---|
| Tel: | +86-18922120635 |
| Mobile: | +86-18922120635 |
| E-mail: | sales@toref-standards.com |
| QQ: | |
| Skype: | Chat Now! |
| Address: | Room 1201, Room 1203, 181 Science Avenue, Huangpu District, 510663 |
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Established in 1999, Guangzhou Tosun Pharmaceutical Limited is a Pharmaceutical company based in Guangzhou, China, and specialized in providing Pharmaceutical Reference Standards, API Impurities, Reference Listed Drugs (RLDs), Intermediates, Excipients etc. We supply products to pharmaceutical, and biotech companies as well as R&D labs at various research institutes and organizations.
? We respond to our client’s inquiries within 24 hrs.
? We ship In-stock products in 24 hrs.
? Tosun offers custom synthesis of the products which are new or not in our stock.
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| Product Name | MF | CAS | Details |
|---|
| Mesalazine | C7H7NO3 | 89-57-6 | Details |
| Relugolix Impurity 4 | C4H4ClN3 | 5469-69-2 | Details |
| Caffeine EP impurity D | C7H8N4O2 | 83-67-0 | Details |
| Diphenylphosphinic acid | C12H11O2P | 1707-03-5 | Details |
| Lidocaine EP Impurity H | C10H12ClNO | 1131-01-7 | Details |
| 3-Chloro-4-morphlino-1,2,5-thiadiazole | C6H8ClN3OS | 30165-96-9 | Details |
| Fenofibrate EP Impurity B | C17H15ClO4 | 42017-89-0 | Details |
| Loxoprofen | C15H18O3 | 68767-14-6 | Details |
| Progesterone Impurity 28 | C21H28O3 | 2243-08-5 | Details |
| Pregabalin EP Impurity C | C8H8O3 | 90-64-2 | Details |
| Isoniazid EP Impurity A | C6H5NO2 | 55-22-1 | Details |
| N-Cyano-N',S-dimethylisothiourea | C4H7N3S | 5848-24-8 | Details |
| Etomidate Impurity 9 | C6H8N2O2 | 23785-21-9 | Details |
| Allopurinol | C5H4N4O | 315-30-0 | Details |
| Pregabalin Impurity 53 | C9H17NO3 | 181289-15-6 | Details |
| Laurocapram | C18H35NO | 59227-89-3 | Details |
| N-Hydroxysuccinimide | C4H5NO3 | 6066-82-6 | Details |
| Olaparib Impurity 7 | C9H18N2O2 | 57260-71-6 | Details |
| O-Benzenedicarboxylicacid Dioctylester | C24H38O4 | 117-84-0 | Details |
| Dopamine EP Impurity C | C10H15NO2 | 120-20-7 | Details |
| Z-D-Arg(Pbf)-OH·CHA | C33H49N5O7S | 200191-00-0 | Details |
| Molnupiravir Impurity 1 | C9H13N3O6 | 3258-02-4 | Details |
| Lidocaine Dichloro Impurity | C10H11Cl2NO | 39084-88-3 | Details |
| Isavuconazole | C22H17F2N5OS | 241479-67-4 | Details |
| Dimethyl adipate | C8H14O4 | 627-93-0 | Details |
| 1,2-Dimethylimidazol | C5H8N2 | 1739-84-0 | Details |
| Dimethylsulfate | C2H6O4S | 77-78-1 | Details |
| Trichlorethanol | C2H3Cl3O | 115-20-8 | Details |
| Phenyl Chloroformate | C7H5ClO2 | 1885-14-9 | Details |
| 2-Aminobenzenethiol | C6H7NS | 137-07-5 | Details |
| Losoprofen Sodium | C15H19NaO3 | 80382-23-6 | Details |
| Hydroxyacetone | C3H6O2 | 116-09-6 | Details |
| Amikacin EP Impurity I | C4H9NO3 | 40371-51-5 | Details |
| Lansoprazole Impurity 21 | C7H8N2O3 | 37699-43-7 | Details |
| Glycyrrhetic Acid (Enoxolone) | C30H46O4 | 471-53-4 | Details |
| Chlorphenamine EP Impurity B | C10H9N3 | 1202-34-2 | Details |
| Sulfadimethoxine EP Impurity A | C6H9N3O2 | 3289-50-7 | Details |
| P-Chloroacetoanilide | C8H8ClNO | 539-03-7 | Details |
| Prilocaine EP Impurity B HCl | C7H10ClN | 636-21-5 | Details |
| Boc-L-Glutamic acid | C10H17NO6 | 2419-94-5 | Details |
| Pentoxifylline EP Impurity B | C6H6N4O2 | 1076-22-8 | Details |
| (R) - 2-methylproline | C6H11NO2 | 63399-77-9 | Details |
| Capecitabine Intermediate 2 | C11H16O7 | 62211-93-2 | Details |
| Sodium metabisulfite | H2O5S2.2Na | 7681-57-4 | Details |
| Aspirin EP Impurity E | C14H10O5 | 552-94-3 | Details |
| Norfloxacin EP Impurity A | C12H9ClFNO3 | 68077-26-9 | Details |
| Pregabalin Impurity 32 | C8H11N | 3886-69-9 | Details |
| Chloroacetyl Chloride | C2H2Cl2O | 79-04-9 | Details |
| Clprofloxacin Hydrochloride | C17H18FN3O3.HCl | 93107-08-5 | Details |
| Mesalamine EP Impurity A | C6H7NO | 123-30-8 | Details |
| Minoxidil EP Impurity B | C4H5ClN4 | 156-83-2 | Details |
| Fumaric acid monomethyl ester | C5H6O4 | 2756-87-8 | Details |
| Dapoxetine Hydrochloride | C21H23NO | 119356-77-3 | Details |
| Methyl acetylsalicylate | C10H10O4 | 16475-90-4 | Details |
| DL-α-Tocopherol | C29H50O2 | 10191-41-0 | Details |
| MetocloprDmide EP Impurity E | C6H16N2 | 100-36-7 | Details |
| MetocloprBmide EP Impurity B | C11H12ClNO4 | 4093-31-6 | Details |
| Ibuprofen EP Impurity B | C13H18O2 | 3585-49-7 | Details |
| N,N'-Dimethylarginine | C8H18N4O2 | 30344-00-4 | Details |
| Sodium tetrasulfate | H5NaO7S4 | 13721-29-4 | Details |
| Rasagiline Impurity 10 | C9H11N | 34698-41-4 | Details |
| Dinitolmide Impurity A | C8H7NO4 | 1975-52-6 | Details |
| Posazonazole Intermediate 1 | C16H19N3O | 74853-08-0 | Details |
| Acetylcysteine isomer impurity | C5H9NO3S | 26117-28-2 | Details |
| Lansoprazole Impurity 23 | C7H9NO | 22710-07-2 | Details |
| 2,4,5-Trimethylaniline Hydrochloride | C9H14ClN | 21436-97-5 | Details |
| Dinitolmide | C8H7N3O5 | 148-01-6 | Details |
| (S)-(-)-2-(Boc-amino)-1,5-pentanediol | C10H21NO4 | 162955-48-8 | Details |
| Cimetidine | C10H16N6S | 51481-61-9 | Details |
| Ursodeoxycholic Acid EP Impurity F | C24H38O4 | 4651-67-6 | Details |
| Puerarin | C21H20O9 | 3681-99-0 | Details |
| Cimetidine Impurity 2 | C4H5N3S | 26364-65-8 | Details |
| Amikacin EP Impurity D | C18H36N4O11 | 59-01-8 | Details |
| Hydrochlorothiazide Impurity B | C6H8ClN3O4S2 | 121-30-2 | Details |
| Capecitabine EP Impurity C | C13H16FN3O6 | 161599-46-8 | Details |
| Dopamine EP Impurity B | C9H13NO2 | 554-52-9 | Details |
| Mesalazine EP Impurity P | C13H11NO6S | 887256-40-8 | Details |
| p-Toluenesulfonate Ethyl ester | C9H12O3S | 80-40-0 | Details |
| Digoxin EP Impurity A | C41H64O13 | 71-63-6 | Details |
| Labetalol Impurity 6（Amphetamine） | C10H15N | 22374-89-6 | Details |
| Methanesulfonate Isopropyl | C4H10O3S | 926-06-7 | Details |
| Methanesulfonate Methyl | C2H6O3S | 66-27-3 | Details |
| MetocloprCmide EP Impurity C | C8H8ClNO3 | 7206-70-4 | Details |
| Methanesulfonate Ethyl | C3H8O3S | 62-50-0 | Details |
| Diquafosol Impurity-UMP | C9H14N2NaO9P | 3387-36-8 | Details |
| Azacitidine Impurity 1 | C3H5N5O | 645-92-1 | Details |
| Rivaroxaban Impurity RC-28 | C5H3ClO2S | 59337-89-2 | Details |
| Cyanocobalamin Impurity 13 | C62H90ClCoN13O15P | 13422-51-0 | Details |
| Isavuconazole Impurity 33(Crotonaldehyde) | C4H6O | 123-73-9 | Details |
| Urosodeoxycholic Acid Impurity 11 | C26H43NO6 | 475-31-0 | Details |
| Trifluoroethylamine | C2H4F3N | 753-90-2 | Details |
| Loxoprofen Impurity 28 | C10H11BrO2 | 111128-12-2 | Details |
| 2,4-Dimethylimidazole | C5H8N2 | 930-62-1 | Details |
| Ibuprofen EP Impurity E | C12H16O | 38861-78-8 | Details |
| 4-Amino-3-fluorphenol | C6H6FNO | 399-95-1 | Details |
| Capecitabine Intermediate 1 | C4H4FN3O | 2022-85-7 | Details |
| Capecitabine EP Impurity G | C19H26FN3O8 | 162204-20-8 | Details |
| Olaparib | C24H23FN4O3 | 763113-22-0 | Details |
| Phenacetin | C10H13NO2 | 62-44-2 | Details |
| Mesalazine EP Impurity K | C6H7N | 62-53-3 | Details |
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