It seems like you're interested in chemical companies turning to suppliers for a specific grade of a chemical called "OSR EA." However, as of my last knowledge update in September 2021, I don't have specific information about a chemical called "OSR EA" or any recent developments in the chemical industry regarding it. It's possible that this is a specific chemical or grade that has emerged or become more relevant after my last update.
osr/emeramide ea grade
IUPAC Name:N1,N3-bis(2-sulfanylethyl)benzene-1,3-dicarboxamide
Synonyms: Fandachem osr ea grade,nbmi ea grade,bdth2 ea grade,mercury chelator,treatment of mercury poisoning.
Manufacturer: Fandachem
cas 351994-94-0
Use: mercury chelator,treatment of mercury poisoning.
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If "OSR EA" is a new or specialized chemical grade, I recommend checking industry news sources, chemical industry publications, or contacting chemical suppliers directly to get the most uptodate information on this specific topic. You can also specify more details or ask any other questions you may have related to the chemical industry, and I'll do my best to provide information based on my last update.