Police say the 1,000 sq ft facility in Shek Wu Wai is believed to have been operational for about one to two months.

The Food and Drug Administration announced last week that it will revoke authorization for FD&C Red No. 3 in food and ...

In an effort to advance the scientific community’s capability, Alfa Chemistry, a US-located chemical vendor, has announced the release of an impressive array of hydrofluoroethers (HFEs), which serve ...

The FDA continues its regulation pronouncement streak, changing its authorization of Red No. 3 days ahead of the incoming Trump administration.

After this time, the polymer was precipitated in cold ethyl ether, filtered, and dried, obtaining the white solid of PEG-NH 2. For functionalization with a carboxylic acid group, 5 g of PEG was ...

The reaction mixture was washed by toluene and ethyl ether for three times, respectively. The viscosity got larger with washing operation, and then a gelatinous substance was obtained. The gelatinous ...

One of these groups of compounds are the ether derivatives of natural products that are currently ... column chromatography using silica gel as the stationary phase, and hexane:ethyl acetate, 6:4, v/v ...