欧美熟妇交换久久久久久分类|欧美一区二区三区视频在线|中文天堂资源在线www|中文字幕中出在线观看,亚洲成AV人网址,国产欧美精品一区二区三区涩涩,久久久无码精品亚洲日韩一二区

Chemical name: (2,5-dioxo-4-imidazolidinyl)urea
Molecular formula:C₄H₆N₄O₃
Molecular weight:158.12

Quality indexes
Appearance: white crystalline powder
Melting point:228~233^oC
Residue on ignition:≤0.1%

Uses
        good healer for skin wound
        used as cosmetic additive to heal skin hurts
        Dosage:0.5-2%

Packing
        net wt 25kg in PE bag lined cardboard drum
Storage
        Sealed, kept in dark, clean, cool and dry place.