Formula: C5H9NO3S
Molecular weight: 163.19 D Appearance: White crystals
Solubility: Clear, colorless solution in water (c=50 mg/mL)
Melting range: +107 to +113°C
Specific rotation [α] 25/D: +3.0° to +5.0°
IR-spectrum: Corresponds to reference
Purity (HPLC): ≥99.0 area%
N-Acetyl-L-Cysteine (content from SH-groups): ≥99.0%
N-Acetyl-L-Cysteine (alkalimetric): ≥99.0%
N-Acetyl-L-Cysteine (content from N): ≥99.0%
Content of nitrogen (elementary analysis): ≥8.5%
Screening analysis:
Particle size ≥60 μm: ≤15%
Particle size ≥140 μm: ≤50%
Heavy metals (as Pb): ≤5 ppm
Fe (AAS): ≤2.0 ppm
Cu (AAS): ≤1.0 ppm
Mn (AAS): ≤1.0 ppm
Bioburden: 100 CFU/g
Country of origin: China, USA, Canada
Heat treatment (only chinese goods): Corresponds to reference
Stability: At +15 to +40°C within specification range for 24 months