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 |
|---|
| 4 - hydroxy-1 - (3 - pyridyl) - 1 - butanone | C9H11NO2 | 59578-62-0 | Details |
| Disodium edetate/Ceftriaxone Impurity 21 | C10H19N2NaO9 | 6381-92-6 | Details |
| Ethanol | C2H6O | 64-17-5 | Details |
| Ciprofloxacin HCl Monohydrate | C17H21ClFN3O4 | 86393-32-0 | Details |
| Diquafosol Impurity B | C9H15N2O15P3 | 63-39-8 | Details |
| Ibuprofen Impurity 60 | C18H27ClO2 | 89878-75-1 | Details |
| Pregabalin Impurity 45 | C8H15NO | 61312-87-6 | Details |
| Glycolic acid | C2H4O3 | 79-14-1 | Details |
| Procaterol Impurity 11 | C10H7NO3 | 68304-21-2 | Details |
| Ceftizoxime Impurity 3 | C13H13N5O6S2 | 79226-66-7 | Details |
| Benzalkonium chloride | C17H30ClN | 8001-54-5 | Details |
| Procaterol Impurity 8 | C16H23ClN2O3 | 62910-96-7 | Details |
| Furosemide impurity 5 | C7H5Cl2NO4S | 62971-57-7 | Details |
| Palmitic acid ethyl ester | C18H36O2 | 628-97-7 | Details |
| Brimonidine EP Impurity A | C11H11N5 | 91147-43-2 | Details |
| Valsartan Impurity 46 | C23H29NO4 | 1012341-54-6 | Details |
| Acarbose EP Impurity A | C25H43NO18 | 1013621-79-8 | Details |
| Benzophenone | C11H14O | 1009-14-9 | Details |
| Nicardipine Impurity 44 | C10H15NO | 101-98-4 | Details |
| Ipilimumab impurity 2 | C12H13F2NO | 1016743-93-3 | Details |
| Metoclopramide Impurity 33 | C13H20ClN3O2 | 101385-94-8 | Details |
| Ilutinib impurity 10 | C27H30N6O3 | 1022150-11-3 | Details |
| Glipizide EP Impurity I(Trelagliptin EP Impurity I) | C22H34N4O4S | 10079-35-3 | Details |
| Tigecycline EP Impurity C(Minocycline) | C23H27N3O7 | 10118-90-8 | Details |
| Vancomycin EP Impurity D | C59H62Cl2N8O22 | 101485-50-1 | Details |
| Famotidine EP Impurity I | C8H14N6O4S3 | 1020719-36-1 | Details |
| Ambroxol Impurity 7 | C13H20BrClN2O | 101900-44-1 | Details |
| Metronidazole EP Impurity G | C6H7N3O4 | 1010-93-1 | Details |
| Milnacipran Hydrochloride | C15H23ClN2O | 101152-94-7 | Details |
| Paliperidone Impurity 10 | C11H14N2O2 | 1008796-23-3 | Details |
| Dabigatran Acyl-β-D-Glucuronide | C31H33N7O9 | 1015167-40-4 | Details |
| Levofloxacin EP Impurity F | C13H9F2NO4 | 100986-89-8 | Details |
| Sodium Thiosulfate Pentahydrate | H10Na2O8S2 | 10102-17-7 | Details |
| Famotidine Impurity 29 | C9H15N7S2 | 1009828-88-9 | Details |
| Paroxetine EP Impurity G HCl | C12H15ClFN | 1012886-75-7 | Details |
| Dienogest Impurity E | C22H31NO3 | 102193-41-9 | Details |
| N. N '- carbonyl bis (N-methylacetamide) | C7H12N2O3 | 102107-09-5 | Details |
| Etofenamate EP Impurity C | C13H10F3N | 101-23-5 | Details |
| Ibuprofen EP Impurity R | C22H30 | 102120-87-6 | Details |
| Treprostinil Impurity 2 | C22H34O3 | 101692-01-7 | Details |
| Valsartan Impurity45 （Sacubitril impurity 45） | C23H29NO4 | 1012341-52-4 | Details |
| Levofloxacin EP Impurity A | C18H20FN3O4 | 100986-86-5 | Details |
| Glipizide EP Impurity H(Trelagliptin EP Impurity H) | C15H23N3O3S | 10080-05-4 | Details |
| Fluvastatin EP Impurity G | C18H16FNO | 101125-34-2 | Details |
| Olaparib Impurity 4 | C16H10FN3O | 1021298-68-9 | Details |
| Fusidic Acid EP Impurity M | C31H48O5 | 1013937-16-0 | Details |
| Clarithromycin EP Impurity D | C37H67NO13 | 101666-68-6 | Details |
| Rosuvastatin EP Impurity L Calcium Salt | C22H30FN3O6S | 1024064-70-7 | Details |
| Chenodeoxycholic Acid Impurity 4 | C48H76N2O8 | 1024498-33-6 | Details |
| 5,7-dimethyl-6-(3-(trifluoromethyl)phenoxy)-2,3-dihydro-1H-1,4-diazepine | C14H15F3N2O | 1024297-62-8 | Details |
| Disulfide chloride | Cl2S2 | 10025-67-9 | Details |
| Hydrobromic acid | BrH | 10035-10-6 | Details |
| 1-[2-[5-Methyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]acetyl]-4-piperidinecarbothioamide | C13H17F3N4OS | 1003319-95-6 | Details |
| Lacosamide EP Impurity J | C7H9N | 100-46-9 | Details |
| Sodium picosulfate | C18H13NO8S2.2Na | 10040-45-6 | Details |
| Pramipexole Impurity K | C10H17N3OS | 1001648-71-0 | Details |
| Levodopa EP Impurity A | C9H11NO5 | 27244-64-0 | Details |
| Sitagliptin EP Impurity C | C16H16F5N5O | 945261-48-3 | Details |
| Antipyrine Impurity 3 | C11H11N3O2 | 885-11-0 | Details |
| Glucosamine Impurity 7 | C5H5NO | 1003-29-8 | Details |
| Salmeterol EP Impurity D | C34H47NO7 | 1391052-04-2 | Details |
| Diquafosol Impurity-UP4 | C9H16N2O18P4 | 10003-94-8 | Details |
| 6-bromo-7-methoxy-4 (3H) - quinazolinone | C9H7BrN2O2 | 950577-05-6 | Details |
| P-methoxybenzoic acid | C8H8O3 | 100-09-4 | Details |
| Magnesium sulfate heptahydrate | Mg.O4S.7H2O | 10034-99-8 | Details |
| Pirfenidone EP Impurity B | C6H7NO | 1003-68-5 | Details |
| Cetirizine EP Impurity B（HCl） | C19H22Cl2N2O2 | 1000690-91-4 | Details |
| Drotaverine Impurity 1 | C12H16O4 | 38464-04-9 | Details |
| Tetracaine Impurity 6 | C11H16N2O2 | 10012-47-2 | Details |
| Aceclofenac EP Impurity F | C23H19Cl2NO4 | 100499-89-6 | Details |
| Loxoprofen Impurity 30 | C10H11ClO2 | 80530-55-8 | Details |
| P-methoxybenzoyl chloride | C8H7ClO2 | 100-07-2 | Details |
| Drotaverine Impurity 2 | C12H19NO2 | 61381-04-2 | Details |
| Rebamipide Impurity 1 | C18H15ClN2O2 | 100342-53-8 | Details |
| Fusidic Acid EP Impurity G | C31H46O6 | 4680-37-9 | Details |
| boric acid | BH3O3 | 10043-35-3 | Details |
| Allopurinol EP Impurity B | C5H6N4O2 | 22407-20-1 | Details |
| Terbinafine EP Impurity E HCl | C36H40N2 | 934365-23-8 | Details |
| Famotidine EP Impurity C HCl | C8H15ClN6O3S3 | 76824-17-4 | Details |
| Nimesulide EP impurity G | C12H9NO4 | 70995-08-3 | Details |
| 1,4-Diisopropylbenzene | C12H18 | 100-18-5 | Details |
| Drotaverine Impurity 7 | C22H28ClNO4 | 85472-87-2 | Details |
| Rifabutin EP Impurity E | C44H60N4O10 | 100324-63-8 | Details |
| Ampicillin EP Impurity I | C24H26N4O5S | 10001-82-8 | Details |
| Amoxicillin EP Impurity C | C16H19N3O5S | 94659-47-9 | Details |
| Methotrexate impurity 29 | C4H7N5 | 1004-38-2 | Details |
| azelaic acid | C9H16O4 | 123-99-9 | Details |
| Bromhexine Impurity D | C14H21BrN2 | 10076-98-9 | Details |
| Loratadine EP Impurity D(Desloratadine) | C19H19ClN2 | 100643-71-8 | Details |
| Macitentan Impurity 29（Benzyl alcohol） | C7H8O | 100-51-6 | Details |
| Rosuvastatin Impurity 114 | C29H40FN3O6S | 1007871-85-3 | Details |
| Betahistine EP Impurity A | C7H7N | 100-69-6 | Details |
| Losartan EP Impurity J | C24H25ClN6O2 | 1006062-27-6 | Details |
| Minoxidil Impurity F | C4H6N4O | 100643-27-4 | Details |
| Naltrexone EP Impurity A | C17H17NO5 | 1007856-83-8 | Details |
| Nicotinamide EP Impurity B（3-Cyanopyridine） | C6H4N2 | 100-54-9 | Details |
| Moxifloxacin impurity 103 | C5H10N2O | 100-75-4 | Details |
| Pyridoxine hydrochloride EP impurity A | C8H10ClNO2 | 1006-21-9 | Details |
| Triamterene EP Impurity A | C4H6N6O | 1006-23-1 | Details |
| Edaravone impurity 3 (phenylhydrazine) | C6H8N2 | 100-63-0 | Details |
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