N-Acetyl-cysteine

N-Acetyl-L-(+)-cysteine Standard: AJI 92 Appearance: White crystals or crystalline powder Specific Rotatin: +21.3° +27.0° State of solution:98.0% Min Chloride: 0.040% Max Ammonium: 0.020% Max Sulfate: 0.030% Max Iron: 20 ppm Max Heavy metals:10 ppm Max Arsenic:1 ppm Max Other Amino acids: Chromatographically not detectable Loss on drying:0.50% Max Residue on ignition:0.20% Max Assay: 98.5% 101.0% PH: 2.0 2.8 Melting Point: 106 110°C