How to Access and Navigate Sinco's Official Website
Dear valued customersTo further enhance user experience, Sinco website has undergone significant updates. This upgrade focuses on improving the accuracy of spot product filtering, enhancing the efficiency of bulk inquiries, and personalizing service content display. The upda...
Kind Attention | Sinco's Trade-mark, product label and COA were upgraded
Dear Customers and Partners:Fristly, I would like to extend our appreciation for your long-term support in Sinco's development! To constantly improve your experience in buying and using Sinco's products, we have upgraded our trade-mark, label and COA. It will make you more easily...
Golden Autumn Gift: Lucky Points
Purchase SINCO pharmaceutical reference standards to earn points and redeem great gifts! Both new and existing customers can get high-value points to exchange for gifts! Inquiries are welcome!
New Arrivals Alert | Over 50 Hot-Item Scarce Impurity Reference Standards Launched, with Fast Delivery & Quality Assurance!
In this issue, we carefully select and launch a variety of popular pharmaceutical impurity reference standards, covering representative drugs in multiple therapeutic areas, such as Ribociclib, Metoclopramide, Omadacycline, Bensuldazic Acid, Loxoprofen, and Pivmecillinam. All prod...
Notice on Price Adjustment for USP Pharmacopeial Publications and Reference Standards
Effective October 1, 2025, USP will adjust the prices of its pharmacopeial publications and reference standards. The average adjustment range for this price change is 1.64%.The cut-off time for orders at Feisi is 11:00 AM (local time) on September 30, 2025. Orders received before...
Sharing on Preparation and Stability Study of Iodixanol EP Impurity I
Iodixanol EP Impurity I is an important related substance affecting the quality of iodixanol, and plays a key role in the quality control of iodixanol.Iodixanol is usually prepared by the reaction of 5-acetamido-N1,N3-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide with epic...
Sharing on Research Related to Nitrosamine Impurities in Human Drugs
In July 2018, antihypertensive drugs produced using valsartan active pharmaceutical ingredient (API) from Zhejiang Huahai Pharmaceutical Co., Ltd. were widely recalled in European and American markets. This incident had a significant impact worldwide, even causing panic among pat...
Brief Discussion on Quantitative NMR as a Quantitative Research Method for Pharmaceutical Impurity Reference Standards
In impurity research, besides qualitative studies on impurities, quantitative studies are often required. This allows for a more accurate understanding of the actual impurity content and its consistency with high-performance liquid chromatography (HPLC) data, providing more relia...
From Synthesis to Storage: A Record of Overcoming Key Impurities of Opicapone
Opicapone is a new-generation peripheral catechol-O-methyltransferase (COMT) inhibitor. Developed by the Portuguese pharmaceutical group Bial-Portela, it was first approved by the European Union (EU) in June 2016.As an adjunctive therapy to levodopa/dopa decarboxylase inhibitors ...