free性video西欧极品,伊人依成久久人综合网,中文字幕人妻一区二区三区熟女,男女高潮激烈无遮挡免费观软件 ,成人3d动漫一区二区三区

Company Profile

  • Contact Person :
  • Fax:
Malonic acid is also called malic acid. Molecular formula hoocch2cooh. It exists in beetroot in the form of calcium salt, and the scale deposited in the concentration tank of beet sugar production is calcium malonate. Malonic acid is a colorless lamellar crystal; melting point 135.6 ℃, 140 ℃ decomposition, density 1.619 g / cm3 (16 ℃); soluble in water, alcohol and ether. Soluble in acetone and pyridine.
PharmaSources Customer Service