狠狠躁18三区二区一区,日韩一区二区三区无码免费视频,日韩免费观看视频,国产成人69视频午夜福利在线观看,国产无码AV网站

?L-Ergothioneine

Appearance:White to off-white powder

Assay:≥98%

Molecular structure:

Molecular weight:229.3

Shelf life:three years

Molecular formula:C9H15N3O2S

CAS Number:497-30-3

Usage:Cosmetic ingredients .Natural antioxidant.Nutritional supplements.Food additives.