ShineHerb
1 / 1
L-Cysteine Hydrochloride Anhydrous is the anhydrous salt of L-cysteine, appearing as a white crystalline powder with robust reducing and antioxidant activity. As a critical precursor to glutathione, it effectively supports liver detoxification, cellular antioxidant mechanisms, and tissue repair.
Its distinct anhydrous properties provide superior stability against moisture and oxidation during storage and transportation. Consequently, it is widely utilized across bakery products, beverages, nutritional supplements, pharmaceutical intermediates, and hair care cosmetics.
Anhydrous L-Cysteine Hydrochloride functions as a sulfur-containing conditionally essential amino acid for the human body, serving as a key synthetic precursor of glutathione and taurine. Furthermore, it is extensively used throughout the food, cosmetic, and feed industries.
| Product Name | CAS No. |
|---|---|
| L-Cysteine | 52-90-4 |
| N-Acetyl-L-Cysteine | 616-91-1 |
| L-Cysteine hydrochloride monohydrate | 7048-04-6 |
| L-Cysteine hydrochloride anhydrous | 52-89-1 |
| S-Carboxymethyl-L-Cysteine | 638-23-3 |
| Item | Specifications | Test Results |
|---|---|---|
| Description | White crystals or crystalline powder | White crystalline powder |
| Assay, % | 98.0 ~ 101.0 | 99.48 |
| pH value | 4.5 ～ 5.5 | 5.22 |
| Specific optical rotation [a]D20° | +8.3° ~ +9.5° | +8.90° |
| State of solution (Transmittance) min | ≥ 95.0 | 99.3 |
| Loss on drying, % | ≤ 0.5 | 0.18 |
| Residue on ignition, % | ≤ 0.1 | < 0.1 |
| Chloride (Cl), % | ≤ 0.04 | < 0.04 |
| Sulfate (SO4), % | ≤ 0.030 | < 0.030 |
| Ammonium (NH4), % | ≤ 0.02 | < 0.02 |
| Heavy metals (Pb), % | ≤ 0.001 | < 0.001 |
| Iron (Fe), % | ≤ 0.001 | < 0.001 |
| Arsenic (as S2O3), % | ≤ 0.0001 | < 0.0001 |
| Other amino acids | Conforms | Conforms |
| Weight | Packing Method |
|---|---|
| 1kg | Bag/kg, box outside (double plastic bag + aluminum foil bag inside) |
| 10kgs, 25kg or more | By drums or carton (2 layers plastic bag inside) |
| Weight | Delivery Method | Delivery Time | Destination |
|---|---|---|---|
| 1kg - 25kgs | EMS, DHL, UPS, FedEx | 3 - 7 days | Door to door |
| 25kgs - 100kgs | DHL, FedEx, by Air | 3 - 7 days | Door to door (to Airport by Air) |
| More than 100kgs | By Air | 3 - 7 days | Door to Airport |
| By Sea | 10 - 35 days | Door to port |
