Import 3-O-Ethyl Ascorbic Acid — Buy in Bulk from Supplier in China

3-O-Ethyl Ascorbic Acid is a stable vitamin C derivative used widely in skincare formulations for its brightening, antioxidant and anti-inflammatory properties. This compound inhibits tyrosinase activity, reducing melanin synthesis while promoting collagen production to improve skin elasticity and texture. The product supplied by Shanghai Cosroma Biotech Co., Ltd. is offered as a white to off-white powder with a slight characteristic odor, a pH range of 3.0 to 4.5, and a melting point between 112 and 115°C.

With a molecular weight of 204.18 and the chemical formula C8H12O6, this ingredient maintains high stability due to the ethyl group forming an ether bond with the 3-hydroxy group of ascorbic acid. Its purity is verified at ≥ 99.5% via HPLC, with strict controls on impurities such as heavy metals (< 10 mg/kg), total bacteria (< 100 CFU/g), and yeast and mold (< 10 CFU/g). The compound also demonstrates a loss on drying ≤ 1.0% and residue on ignition ≤ 0.1%, aligning with typical cosmetic-grade specifications.

This derivative is commonly used in serums, creams, and lotions targeting hyperpigmentation, aging, and uneven skin tone. Buyers typically source it in bulk for formulation into high-performance skincare products, with applications in both medical and consumer cosmetics. Its stability makes it a preferred alternative to L-ascorbic acid in formulations where oxidation resistance is critical.

Shanghai Cosroma Biotech Co., Ltd. is based in Minhang District, Shanghai, operating from Room 226 on the second floor of Building No. 1 at Focus Business Center, East Huguang Road No. 89. The company specializes in the development and supply of cosmetic ingredients, with a focus on high-purity active compounds for skincare applications. Its address places it in a key industrial and commercial hub within Shanghai, facilitating logistics and business operations.

The supplier holds a harbor trust tier, indicating a verified operational status, though its current response rate and average response time are not yet established. The company’s profile reflects a commitment to providing technical-grade cosmetic ingredients, supported by detailed specifications and compliance with industry standards for purity and safety. No additional claims about certifications, production scale, or client base are provided in the available data.