Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.
以BTEAC(苄化铵)为相转移催化剂合成了烟酸酯。
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So you might see in a particular company that they are ISO 9,000 certified or something like that, and that's very important because it indicates that they have a certain degree of quality in that organization regarding that area.
因此,您可能会在一家特定公司看到他们通过了 ISO 9, 000 认证或类似认证,这非常重要, 因为这表明他们在该组织中在该领域具有一定程度的质量。