

Antioxidant Power: Neutralizes free radicals, preventing oxidative damage in food and biological systems.
Nutrient Fortification: Restores or enhances vitamin C content in processed foods and supplements.
Acidity Regulator: Lowers pH in beverages and preserves color in fruits and vegetables.
Collagen Production: Critical for skin health, wound healing, and connective tissue repair.
Natural & Synthetic Forms: Available as L-ascorbic acid (natural isomer) or sodium/calcium ascorbate for pH-sensitive applications.

| Items | Target | result |
| Describe | White crystalline powder or granules | Meets |
| Assay | 99.0~100.5% | 99.65% |
| Clarity and color of solution | Clear | Conforms |
| Identification | Positive reaction | Conforms |
| Specific Rotation | (+)20.5°~(+)21.5° | 20.52° |
| Residue On Ignition | 0.1%max | 0.049% |
| Heavy Metal | 10 ppm max | Conforms |
| Copper | 5 ppm max | Conforms |
| Mercury | 0.1 ppm max | Conforms |
| Arsenic | 2 ppm max | Conforms |
| Iron | 2 ppm max | conforms |
| Lead | 0.5 ppm max | Conforms |
| pH | 2.2~2.6 | 2.47 |
| cadmium | 1ppm max | Conforms |
| colour of solution | Not more than BY7 | Conforms |
| oxalic acid | 0.2% max | Conforms |
| Organic volatile impurities | Meets the requirements | Conforms |
| Staphylococcus Aureus | negative | Conforms |
| Total Plate Count cfu/g | 1000max | Conforms |
| Yeast & Mold cfu/g | 100max | Conforms |
| E. Coli: | negative | Conforms |
| Salmonella: | negative | Conforms |
| Loss on drying | 0.1% max | 0.062% |
| Coliforms: | negative | conforms |
| Melting point range | 190-192ºC | 191ºC |
Industry Preservation: Extends shelf life of meats, juices, and canned goods by inhibiting oxidation and browning.Protects color in cut fruits (e.g., apples, avocados) and processed potatoes.
Fortification: Enriches breakfast cereals, dairy products, and infant formula with vitamin C.
Beverages: Acts as an antioxidant in soft drinks, energy drinks, and flavored waters. Enhances tartness in fruit-flavored beverages.
Dietary Supplements & Nutraceuticals
Immune Support: Key ingredient in immune-boosting tablets, gummies, and effervescent powders.
Anti-Aging Supplements: Combines with collagen or hyaluronic acid for skin health formulations.

Anti-Aging Serums: Reduces UV-induced skin damage and stimulates collagen synthesis.
Brightening Products: Inhibits melanin production to address hyperpigmentation.
pH Adjustment: Used in toners and exfoliants to balance skin pH.
Pharmaceuticals
Wound Healing: Incorporated into topical creams for tissue repair.
Antioxidant Therapy: Used in IV formulations for critically ill patients.
Industrial Applications
Water Treatment: Reduces chlorine in drinking water and wastewater.
Photography: Acts as a developing agent in photographic chemicals.

CAS Number: 50-81-7
Appearance: White to light yellow crystalline powder
Solubility: Highly soluble in water (330 g/L at 20°C), slightly soluble in ethanol. Stability: Degrades in heat, light, and alkaline conditions; stabilized by antioxidants like tocopherol.
Storage: Store in airtight, light-resistant containers at 15-25°C.
Shelf Life: 24-36 months under recommended conditions.











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