麻豆91精品91久久久的内涵,久久夜色噜噜噜av一区,久久久久亚洲精品,热久久精品一区二区三区,性色av极品无码专区亚洲,亚洲精品在线91

　　Legal number: CAS RN) : 52-89-1 EINECS no. : 200-157-7

　　Molecular formula: C₃H₇NO₂S·HCI

　　Molecular weight: 175.64

　　USES: widely used in cosmetics, medicine, food and other industries.

　　Standard: AJI92