product

  • L-Cysteine CAS NO 52-90-4 for Food Grade(FCC/AJI/USP)

    L-Cysteine CAS NO 52-90-4 for Food Grade(FCC/AJI/USP)

    Product Name: L-Cysteine

    CAS NO.: 52-90-4

    Appearance:White Crystalline Powder

    Product Properties: Monoclinal or orthogonal crystal, melting point 178℃, [α]+26.5 (mol/L hydrochloric acid), imine taste, easily oxidized to cystine by air in neutral or slightly alkaline solution, stable in acidic environment, soluble in water, ethanol, acetic acid, insoluble in ether, acetone, ethyl acetate, benzene, carbon disulfide and carbon tetrachloride.

    Packing:25kg per plastic bag or 25kg per iron drum

  • L-Cysteine CAS NO 52-90-4 for Pharma Grade(USP/EP)

    L-Cysteine CAS NO 52-90-4 for Pharma Grade(USP/EP)

    Product Name:L-Cysteine

    CAS NO.:  52-90-4

    Appearance:White Crystalline Powder

    Product Properties: Cysteine is a white crystalline or crystalline powder, soluble in water, slightly smelly, insoluble in ethanol, ethyl ether and other organic solvents.Melting point 240℃, monoclinic system.Cysteine is one of the sulfur-containing amino acids, which is a non-essential amino acid. In organisms, it is synthesized by substitution of sulfur atom of methionine with hydroxyl oxygen atom of serine, and then by cysteine.Cysteine is stable to acids, but is readily oxidized to cysteine in neutral and alkaline solutions.

    Packing:25kg per plastic bag or 25kg per iron drum

  • Newly Arrival China L-Cysteine 52-90-4

    Newly Arrival China L-Cysteine 52-90-4

    Product Name:L-Cysteine

    CAS NO.:  52-90-4

    Appearance:White Crystalline Powder

    Product Properties: Cysteine is a white crystalline or crystalline powder, soluble in water, slightly smelly, insoluble in ethanol, ethyl ether and other organic solvents.Melting point 240℃, monoclinic system.Cysteine is one of the sulfur-containing amino acids, which is a non-essential amino acid. In organisms, it is synthesized by substitution of sulfur atom of methionine with hydroxyl oxygen atom of serine, and then by cysteine.Cysteine is stable to acids, but is readily oxidized to cysteine in neutral and alkaline solutions.

    Packing:25kg per plastic bag or 25kg per iron drum