Sanitation Standards for Butane to be Used in Food Article 2

Butane as referred to these standards including both n-butane (CAS Reg. No. 106-97-8) and isobutane (CAS Reg. No. 75-28-5). The formula of the chemical is indicated as C4H10, and its molecular weight is 58.12.
中文原文 食品用丁烷衛生標準第2條
本標準所稱之丁烷英文化學名稱為butane,係正丁烷(n-butane;CAS號碼為106-97-8)及異丁烷(isobutane;CAS號碼為75-28-5)之總稱,分子式為C4H10,分子量為58.12。

English translation for reference only; the Chinese text prevails. Not legal advice.