3-O-Ethyl Ascorbic Acid (CAS 86404-04-8)

Application and positioning

Ethylated at the 3-hydroxyl, the position that otherwise oxidises first — the result is stable and lipophilic enough to penetrate. Typically used at 1–3 %, with the formulation pH kept below 6. Laurand supplies it from audited Chinese producers in kilogram to multi-hundred-kilogram lots, with the purity and microbiological documentation cosmetic formulators require.

Quality and documentation

• Batch-specific Certificate of Analysis with assay by HPLC or titration and the relevant impurity profile
• Heavy metals (Pb, As, Hg, Cd) and microbial limits to the specification agreed for cosmetic grade
• INCI name and CAS on the COA, to support your own product notification file
• Appearance, colour and odour described against a retained reference standard
• SDS in the language of your market, with GHS classification for the destination

Packaging and handling

• 1 kg, 5 kg and 25 kg fibre drums with inner PE liner; smaller pack sizes in PE bottles
• Sealed and dry; products that are heat-sensitive are shipped with the appropriate temperature control
• Store in a dry, dark warehouse below 30 °C, away from strong oxidising agents

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Values marked (predicted) are calculated estimates; the rest are published literature or supplier data. Where a property has no published value we leave it blank rather than estimate it. The specification of the delivered lot is confirmed with the quotation.