The term "OSR EA Grade" is not a commonly recognized term in the field of chemical production as of my last knowledge update in September 2021. It's possible that it may refer to a specific grade or standard in a particular industry, but without more context or information, it's difficult to provide a specific role or significance.

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IUPAC Name：N1,N3-bis(2-sulfanylethyl)benzene-1,3-dicarboxamide
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Manufacturer: Fandachem
cas 351994-94-0
Use: mercury chelator,treatment of mercury poisoning.
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In chemical production, the grade and quality of chemicals are crucial for ensuring the desired properties and safety of the final products. Different grades may be used for various applications, such as pharmaceuticals, food production, industrial processes, and more. If you have a specific definition or context for "OSR EA Grade," please provide more details, and I'd be happy to offer more relevant information.