The CAS Registry Number itself has no chemical significance.
CAS注册号本身没有化学意义。
Each compound is identified by an UPAC-based name, the CAS registry number, its empirical formula and structure.
每种化合物被基于UPAC的名字，CAS登记数目，它的经验公式和架构鑑定。
Each compound is identified by an UPAC-based name, the CAS registry number, its empirical formula and structure.
每种化合物被基于UPAC的名字，CAS登记数目，它的经验公式和架构鑑定。
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