N-Acetyl-L-Cysteine USP-23
Tests | Specifications |
Appearance | White Crystalline Powder |
Identification | Same as R.S. |
Assay | 98.0 ~ 102.0% |
Melting Range | 104 ~ 110'C |
Specific Rotation [a]20D | +21.0 ~ +27.0' |
pH | 2.0 ~ 2.8 |
Loss on Drying | Less than 1.0% |
Residue on Ignition | Less than 0.5% |
Heavy Metals (as Pb) | Less than 10 ppm |
Organic Volatile Impurity Benzene Chloroform 1,4-Dioxane Methylene Chloride Trichloroethylene |
กก Less than 100 ppm Less than 50 ppm Less than 100 ppm Less than 500 ppm Less than 100 ppm |