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 |
|---|
| Rifamycin Impurity 7 | C37H45NO13 | 59264-04-9 | Details |
| Rifamycin Impurity 10 | Details |
| 5-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)pyridin-3-amine | Details |
| Oxacillin sodium USP Impurity K | Details |
| Ticargrelor impurity 15 | C7H9N3O4S | 145783-13-7 | Details |
| Urosodeoxycholic Acid Impurity 21 | C26H44NNaO5 | 92411-07-9 | Details |
| Phenylephrine EP Impurity E | C16H17NO2 | 56917-44-3 | Details |
| Carvedilol Impurity 16 | C27H22N2O3 | 1276477-91-8 | Details |
| Rifamycin Impurity 9 | Details |
| Rifamycin Impurity 6 | Details |
| Cefditoren Pivoxil Impurity 5 | C25H28N6O7S3 | 148774-47-4 | Details |
| Cefcapene pivoxil Impurity 14 | Details |
| Indapamide Impurity 9 | C16H16ClN3O6S2 | 1219174-77-2 | Details |
| Olmesartan Medoxomil Impurity 41 | C13H22N2O3 | 1092980-84-1 | Details |
| 4-bromo-6-(prop-1-en-2-yl)pyrimidin-2-amine | Details |
| 2-Thiobarbituric acid | C4H4N2O2S | 504-17-6 | Details |
| Diacerein Impurity 4 | C19H14O7 | 72049-18-4 | Details |
| Cefditoren Pivoxil Impurity 11 | C25H28N6O7S3 | 138514-32-6 | Details |
| Cefditoren Pivoxil Impurity 26 | Details |
| Crisaborole Impurity 14 | C14H8BrNO3 | 2473730-47-9 | Details |
| Paliperidone Impurity 72 | Details |
| Cefditoren Pivoxil Impurity 7 | Details |
| Rifamycin Impurity 8 | Details |
| Milbemycin EP impurities H | Details |
| Pantoprazole EP Impurity B | C16H15F2N3O3S | 102625-64-9 | Details |
| Glucose impurity 11 | C6H12O6 | 10257-28-0 | Details |
| Droperidol EP Impurity B | C22H22FN3O2 | 1026015-45-1 | Details |
| Telmisartan EP Impurity B | C33H30N4O2 | 1026353-20-7 | Details |
| Candesartan Cilexetil Impurity22 | C32H32N6O6 | 1026042-12-5 | Details |
| Faropenem Impurity 14 | C11H14O4S | 1025974-23-5 | Details |
| Ketorolac EP Impurity C | C15H13NO3 | 1026936-07-1 | Details |
| Lansoprazole impurity 50 | C8H11NO2 | 102625-96-7 | Details |
| Lifitegrast | C29H24Cl2N2O7S | 1025967-78-5 | Details |
| Timolol EP Impurity E | C17H26N4O6S | 1026075-53-5 | Details |
| Aztreonam USP Impurity D | C13H17N5O5S | 102579-59-9 | Details |
| Anastrozole EP Impurity D | C15H16Br2N2 | 1027160-12-8 | Details |
| Telmisartan Impurity 1 | C37H38N4O2 | 1026438-56-1 | Details |
| Lansoprazole impurity 49 | C10H13NO3 | 102625-98-9 | Details |
| Cefditoren Pivoxil Impurity 4 | C25H28N6O7S3 | 878002-86-9 | Details |
| Cefditoren Pivoxil Impurity 25 | C25H28N6O7S3 | 117467-28-4 | Details |
| Faropenem Impurity 38 | C5H8O2S | 153165-72-1 | Details |
| 4-chloro-4-methylpiperidine | Details |
| 4-methyl-6-(prop-1-en-2-yl)pyridin-3-amine | Details |
| Metoclopramide sulfone | C16H26ClN3O4S | 139339-72-3 | Details |
| Paliperidone Impurity 42 | C12H13FN2O | 1206185-12-7 | Details |
| Bucladesine Impurity 2 | C14H17N5NaO7P | 70253-67-7 | Details |
| Metoclopramide-D3 | C14H19ClD3N3O2 | 1216522-89-2 | Details |
| Domperidone EP Impurity A | C12H14ClN3O | 53786-28-0 | Details |
| Ceftazidime axetil impurity 4 | Details |
| Clindamycin isopropylidene ;clindamycin impurity 27 | C18H34ClN2O8PS | 1800297-62-4 | Details |
| Cefditoren Pivoxil Impurity 1 | C25H30N6O8S3 | 2409806-43-3 | Details |
| Rifampicin impurity 11 | C42H56N4O12 | 13292-45-0 | Details |
| Flurbiprofen Impurity 54 | Details |
| Amoxicillin EP Impurity E | C15H21N3O4S | 1356020-01-3 | Details |
| N,N-DIGLYCIDYL-4-GLYCIDYLOXYANILINE | C15H19NO4 | 5026-74-4 | Details |
| Acetylcysteine Impurity 1 | C5H6NNaO2S | 15058-19-2 | Details |
| Cefditoren Pivoxil Impurity 23 | C51H56N12O14S6 | 878002-85-8 | Details |
| Faropenem Impurity 13 | C8H9NO3S | 613670-77-2 | Details |
| Nintedanib Impurity G | C30H31N5O4 | 894783-61-0 | Details |
| Amoxicillin Impurity 30 | C16H21N3O6S | 87860-49-9 | Details |
| Amoxicillin Impurity 32 | C15H21N3O4S | 178738-49-3 | Details |
| Amoxicillin Impurity 16 | C15H21N3O4S | 178738-48-2 | Details |
| Flurbiprofen Impurity 5 | C18H19FO4 | 124635-84-3 | Details |
| Rifampicin impurity 12 | C41H54N4O11 | 65110-92-1 | Details |
| Cefditoren Pivoxil Impurity 27 | Details |
| Metoclopramide Impurity 1 | C14H23N3O2 | 3761-48-6 | Details |
| Urosodeoxycholic Acid Impurity 20 | C26H44O4 | 69519-36-4 | Details |
| Relugolix Impurity 6 | C24H23F2N3O6S | 1589503-95-6 | Details |
| Polyethylene glycol | N/A | 25322-68-3 | Details |
| Rispiran impurity 5 | Details |
| Rifamycin Impurity 19 | Details |
| propyl 4-;;4-aminobutanoyloxybenzoate | Details |
| Formoterol Impurity 26 | C18H24N2O3 | 245759-66-4 | Details |
| Procaterol Impurity 22 | C16H23ClN2O3 | 62910-98-9 | Details |
| Nicorandil Impurity 37 | C4H10ClNO2 | 20739-39-3 | Details |
| Hydrocortisone EP Impurity I | C21H30O6 | 103795-84-2 | Details |
| Thiamine EP Impurity G Chloride HCl | C14H20Cl2N4O2S | 1037-29-2 | Details |
| Lansoprazole EPImpurity C | C16H14F3N3OS | 103577-40-8 | Details |
| Valaciclovir EP Impurity I(Acyclovir EP Impurity A) | C10H13N5O4 | 102728-64-3 | Details |
| Levetiracetam EP Impurity D | C8H14N2O2 | 103765-01-1 | Details |
| Benazepril EP Impurity G | C26H32N2O5 | 103129-58-4 | Details |
| Azobenzene | C12H10N2 | 103-33-3 | Details |
| Hydroxychloroquine sulfate EP impurity B | C18H26ClN3O4S | 103152-84-7 | Details |
| Cefepime EP Impurity E | C13H19N3O3S | 103296-32-8 | Details |
| Moxifloxacin Impurity C（Moxifloxacin hydrochloride EP impurity C） | C22H26FN3O4 | 1029364-75-7 | Details |
| Barium chloride | BaCl2 | 10361-37-2 | Details |
| Polyethylene glycol impurity 6 | C27H54O14S | 1032347-93-5 | Details |
| Vinorelbine EP Impurity D | C45H54N4O9 | 1032390-76-3 | Details |
| Escitalopram EP Impurity E | C20H23FN2O2 | 103146-25-4 | Details |
| Bupivacaine EP Impurity D | C14H19Cl2NO | 1037184-07-8 | Details |
| Cefepime parent nucleus | C13H20ClN3O3S | 103121-85-3 | Details |
| 4-Chloropicolinic Acid Hydrochloride | C6H5Cl2NO2 | 1036648-06-2 | Details |
| Ceftazidime EP Impurity E | C26H30N6O7S2 | 102772-66-7 | Details |
| Vildagliptin Impurity 2 | C24H33N5O3 | 1036959-23-5 | Details |
| Levetiracetam Impurity 12 | C4H11ClN2O | 103765-03-3 | Details |
| Moxifloxacin Impurity B（Moxifloxacin hydrochloride EP impurity B） | C22H27N3O5 | 1029364-73-5 | Details |
| Moxifloxacin Impurity D（Moxifloxacin hydrochloride EP impurity D） | C21H24FN3O4 | 1029364-77-9 | Details |
| Oseltamivir EP Impurity J Phosphate | C16H29N2O8P | 1035895-89-6 | Details |
| Vildagliptin Impurity 1 | C17H25N3O2 | 1036959-27-9 | Details |
| Norepinephrine EP Impurity F | C14H15N | 103-49-1 | Details |
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