PRODUCT DETAILS
Chemical Name: 4-(nitrosoamino)benzoic acid
Cat. No.: REF-B61001
Class: Pharmaceutical impurity standard
Uses: Search and Development, Improvement and Declaration on New Drugs
BRAND INFORMATION
Toref is an impurity brand of Guangzhou Tosun Pharmaceutical Limited, which is a global manufacturer and supplier of high-quality Impurity Standards for the Pharmaceutical industry. We are specialized in providing Pharmaceutical Impurity Standards, including pharmacopeical and non-pharmacopeial. We leverage our wide spectrum of business in the fields of research, manufacturing, and supply to help our customers make the best-informed decisions tailored to their evolving needs for high-quality impurity standards. Thus Toref has earned the reputation as one of the most reliable manufacturer and supplier of Pharmaceutical Impurity Standards.
Our entire catalog counts now over 10,000 impurity reference standards with an extensive inventory for immediate shipment. Where stock is unavailable, Toref will undertake production of new and known compounds upon customer order. Their detailed certificates of analysis include clear-cut identity and purity information supported by NMR, HPLC/MS, and/or GCMS data.
FACILITIES
Toref has 20,000 sq. ft. Well-equipped Multipurpose Laboratory, comprising of a wide range of instruments. A partial listing of some of our Analytical Instrumentation and Specialized Equipment is given below:
Thermo HPLC U3000 Systems with UV Detectors
Shimadzu LC-2050 & LC-2050C 3D Systems
RITTUN L-3000 HPLC Systems
Preparative HPLC
Lyophilizer
UPTA-10 Laboratory Water Purifier
YRE-2020A (20L) Rotary Evaporator
High Vacuum Pumps
Distillation Apparatus
Precision Balances
Deep Freezers
Stirrers
Water & Oil Baths
BUSINESS SCOPE
Global Pharmaceutical Impurity Standards Sourcing ( including pharmacopeical and non-pharmacopeial)
Custom Synthesis, Isolation and Purification services for Drug Impurities.
FEATURED IMPURITY STANDARDS
| Adefovir Dipivoxil Impurities | Ibuprofen Impurities
| Ribavirin Impurities |
| Ceftazidime Impurities | Dapoxetine Impurities | Aprepitant Impurities |
| Formoterol Impurities | Sulbactam Impurities | Telmisartan Impurities |
| Parecoxib Sodium Impurities | Obeticholic Aid Impurities | Citalopram Impurities |
CERTIFICATES
EXHIBITIONS
CONTACT
WhatsApp & Mobile: +86-18922120635 (Alex)
Email: sales@toref-standards.com
Address: Room 1201 & 1203, No. 181 Science Avenue, Huangpu District, Guangzhou 510663, China
Website: toref-standards.com/ www.chinadrugservices.com
China
