Basic Information:
• Chemical Formula: C₆H₆Na₃O₉P
• Molecular Weight: 322.05 g/mol
• CAS Number: 66170-10-3
• Other Names: Sodium Tris(ascorbyl-2-phosphate), L-Ascorbyl-2-phosphate Trisodium Salt, Sodium Ascorbyl Phosphate, etc.
• Physicochemical Properties: Usually a white or off-white powder, non-toxic and non-irritating. It is much more stable than ascorbic acid to light, heat, and in water. It is most stable at pH=6.5 and has good stability when pH is greater than 6.5.
• Functions and Effects:
• Antioxidant: Can scavenge free radicals, protect the skin from oxidative stress damage, and prevent skin aging.
• Whitening and Spot-lightening: Inhibits tyrosinase activity, reduces melanin synthesis, and fades spots and pigmentation.
• Promotes Collagen Synthesis: Helps maintain skin elasticity and firmness, reducing wrinkle formation.
• Anti-inflammatory and Soothing: Has anti-inflammatory properties and can soothe sensitive, red, and swollen skin issues.
• Auxiliary Sun Protection: Although it cannot replace sunscreen, it can enhance the skin's resistance to ultraviolet rays.
• Application Fields: In cosmetics, it is commonly used in whitening serums, creams, lotions, etc., with a reference usage of 2%-5% for whitening products and 1%-3% for skincare products. In the pharmaceutical field, it can be used as an intermediate in pharmaceutical and chemical synthesis, and also for research in cell differentiation and tissue engineering.
• Usage Precautions: Should be stored sealed in a dry, cool, and well-ventilated place, avoiding direct sunlight. It is recommended to add its aqueous solution to cosmetic formulations after the product has cooled to 60°C to ensure its activity.