乱子伦视频在线看_香港日本三级亚洲三级_亚洲精品天堂无码中文字幕_亚洲av熟妇高潮30p_成人无码午夜在线观看

Key products
Products
N-vinyl-N-methylacetamide;VMA;
Name:           N-vinyl-N-methylacetamide;VMA;
CAS No:           3195-78-6

Appearance: light yellow to colorless liquid

Purity :97%min.

Reflective index: 1.4830-1.4850

Packing: UN approved drum ,UN1993, Class3 ,Packing III

Back