free性欧美1819护士,国产精品久久久久久久妇,武松大战李玉萍,朋友夫妇:交换 电影,酒店大战丝袜高跟鞋人妻

Cis-2,6-DiMethylpiperazine

Appearance:White or yellowish crystals

Assay:≥99%

Molecular structure:image.png

Molecular weight:114.19

Shelf life:two years

Molecular formula: C6H14N2

CAS Number:21655-48-1

Usage:Pharmaceutical intermediates, chemical auxiliaries.