Best Shineherb supply L-Cysteine Hydrochloride Anhydrous CAS 52-89-1 Dietary Ingredient Manufacturers, Manufacturer
Product Description
L-Cysteine Hydrochloride Anhydrous is the anhydrous salt form of L-cysteine, appearing as a white crystalline powder with strong reducing and antioxidant properties. Functioning as a key physiological precursor of glutathione, it supports hepatic detoxification, cellular antioxidant defense, and biological tissue repair.
Its anhydrous molecular structure confers superior stability against atmospheric moisture absorption and oxidative degradation during transit and long-term storage, rendering it an ideal ingredient for commercial applications across bakery, beverage, dietary supplements, active pharmaceutical intermediates, and cosmetic formulations.
Additionally, Anhydrous L-Cysteine Hydrochloride acts as a sulfur-containing conditionally essential amino acid in human biology, playing a central role in endogenous synthesis pathways for both glutathione and taurine across the food, cosmetic, and animal 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 | Packaging Method |
|---|---|
| 1 kg | 1 kg/bag, exterior carton box (Double inner plastic lining + sealed aluminum foil bag) |
| 10 kgs, 25 kgs or more | Standard fiber drums or heavy-duty cartons (2-layer inner food-grade plastic bags) |
| Weight | Delivery Method | Delivery Time | Destination |
|---|---|---|---|
| 1 kg - 25 kgs | EMS, DHL, UPS, FedEx Express | 3 - 7 days | Door to Door |
| 25 kgs - 100 kgs | DHL, FedEx, or Air Freight | 3 - 7 days | Door to Door / Airport Destination |
| > 100 kgs | Air Freight | 3 - 7 days | Airport Destination |
| Sea Freight | 10 - 35 days | Seaport Destination |
ShineHerb Biotech specializes in the development, production, and supply of premium nutritional ingredients, enzymes, botanical extracts, vitamins, amino acids, peptides, and advanced bio-based raw materials for international B2B clients. We provide custom technical specifications, complete analytical documentation (COA, MSDS), sample evaluations, customized bulk packaging, and global logistics solutions tailored to each client's specific operational needs.
The anhydrous form contains no bound water molecules in its crystal lattice, offering lower hygroscopicity, superior caking resistance, and enhanced chemical stability in dry powdered formulations compared to the monohydrate form.
It is predominantly utilized as a dough conditioner in the baking industry, an active reducing and anti-aging ingredient in cosmetics, a flavor and dietary nutrient in foods, and a synthesis intermediate for glutathione and pharmaceutical active ingredients.
Every shipment is accompanied by a batch-specific Certificate of Analysis (COA) confirming purity, optical rotation, heavy metal limits, and microbiological safety, along with full technical documentation upon request.
It should be kept in tightly sealed, moisture-proof containers in a cool, dry, and well-ventilated warehouse area, protected from direct sunlight, excess heat, and incompatible oxidizing agents.
Yes, we provide pre-shipment sample testing quantities for B2B qualification and can configure specialized primary and secondary packaging (foil bags, cartons, or fiber drums) to suit customer process parameters.
