3-O-Ethyl Ascorbic Acid (EAC) Manufacturer | CAS 86404-04-8
What is 3-O-Ethyl Ascorbic Acid?
3-O-Ethyl Ascorbic Acid (EAC), also known as Ethyl Ascorbic Acid, Vitamin C Ethyl Ether, or 3-O-Ethylascorbic Acid (CAS 86404-04-8), is a revolutionary stable derivative of L-ascorbic acid (Vitamin C). Developed through advanced chemical synthesis, this innovative cosmetic raw material combines the powerful antioxidant benefits of traditional Vitamin C with superior stability and enhanced skin penetration, making it one of the most sought-after Vitamin C derivatives for skin brightening formulations.
As a leading 3-O-Ethyl Ascorbic Acid manufacturer and exporter in China, Runtai Chemical supplies pharmaceutical-grade and cosmetic-grade Ethyl Ascorbic Acid that meets international quality standards including USP, EP, and cosmetic grade specifications.
Unlike conventional L-ascorbic acid, which rapidly oxidizes when exposed to light, air, or water, 3-O-Ethyl Ascorbic Acid maintains its potency across various formulation conditions. This exceptional stability makes it the preferred Vitamin C derivative for cosmetic formulators, skincare brands, and ingredient distributors worldwide seeking a reliable, long-lasting, non-discoloring Vitamin C solution.
Runtai Chemical is a professional and reliable China manufacturer of 3-O-Ethyl Ascorbic Acid (CAS 86404-04-8), offering higher purity, competitive factory-direct pricing, and stable bulk supply. Contact us today for a free sample and get a quote for your next order.
Product Advantages
- Superior Stability: As a highly stable Vitamin C derivative, EAC remains stable in water-based formulations and is resistant to oxidation from light, heat, and air exposure.
- Enhanced Skin Penetration: The ethyl ether structure provides excellent lipophilicity, enabling deeper penetration into skin layers compared to standard Vitamin C.
- Immediate Bioavailability: No enzymatic conversion required — 3-O-Ethyl Ascorbic Acid acts directly on skin without needing to break down into L-ascorbic acid, ensuring immediate antioxidant action and consistent results.
- Wide pH Compatibility: Functions effectively across a broad pH range (3.0–7.0), allowing flexible formulation options for serums, creams, and toners.
- Skin Brightening Power: Inhibits melanin production through tyrosinase suppression. Visibly reduces dark spots, hyperpigmentation, and uneven skin tone for a radiant, luminous complexion.
- Collagen Synthesis: Stimulates fibroblast activity and promotes collagen production, improving skin elasticity and reducing fine lines and wrinkles.
- Antioxidant Protection: Neutralizes free radicals and protects against environmental damage from UV radiation, pollution, and oxidative stress.
- Gentle & Non-Irritating: Suitable for sensitive skin types, with lower irritation potential compared to L-ascorbic acid while maintaining powerful anti-aging benefits.
3-O-Ethyl Ascorbic Acid Quick Details
- Chemical Name:3-O-ETHYLASCORBICACID
- CAS No.: 86404-04-8
- EINECS: 617-849-3
- Molecular Formula: C8H12O6
- Molecular weight: 204.18
- Appearance:White to off white crystalline powder
- Assay: 99%min
- Synonyms:3-O-Ethyl-L-Ascorbic Acid; Ethyl Ascorbic Acid; Vitamin C Ethyl Ether; EAC; VCE; 3-O-Ethyl Ascorbyl Ether; 3-EtAA
3-O-Ethyl Ascorbic Acid Typical Properties
| Item | Specification | Results |
| Appearance | White to off white crystalline powder | Conforms |
| Melting Point | 110.0-116.0℃ | 114.0-114.5℃ |
| Chroma | ≤10 | Conforms |
| PH | 3.5-5.5 | 4.2 |
| Residue on ignition | ≤ 0.1% | 0.04% |
| Loss on drying | ≤ 0.5% | 0.1% |
| Pb | ≤10ppm | Conforms |
| As | ≤2ppm | Conforms |
| Purity | ≥99.0% | 99.9% |
| Free vitamine C | ≤0.01% | N.D. |
| Total plate Count | ≤100cfu/g | <10 |
| Molds and Yeasts | ≤50cfu/g | <10 |
| Thermotolerant Coliforms | Negative | N.D. |
| staphylococcus aureus | Negative | N.D. |
| P.Aeruginosa | Negative | N.D. |
| Conclusion | The results conforms with enterprise standards | |
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3-O-Ethyl Ascorbic Acid Applications
3-O-Ethylascorbic acid is a highly stable and effective derivative of Vitamin C, widely used in cosmetics and personal care formulations for its brightening, antioxidant, and anti-aging properties. Unlike traditional ascorbic acid, it is both water- and oil-soluble and resistant to oxidation, making it more stable in finished products and ensuring a longer shelf life.
In skincare, Ethyl Ascorbic Acid is primarily used to reduce hyperpigmentation, dark spots, and uneven skin tone by inhibiting melanin production. It also boosts collagen synthesis, improving skin elasticity and reducing fine lines. Its antioxidant properties help neutralize free radicals, protecting the skin from environmental damage such as UV radiation and pollution.
Thanks to its gentle nature and enhanced skin penetration, 3-O-Ethyl Ascorbic Acid is suitable for sensitive skin and can be incorporated into serums, creams, essences, and toners. It works well with other active ingredients such as hyaluronic acid, niacinamide, and retinoids, making it a versatile Vitamin C ingredient in anti-aging and brightening skincare formulations.
Common Applications:
- Brightening & whitening serums
- Anti-aging creams and essences
- Toners and facial mists
- Sunscreen and after-sun repair products
- Nutritional supplements & food additives (as a Vitamin C source)
- Pharmaceutical intermediates
3-O-ETHYLASCORBICACID Package & Storage
Package: 25kg/drum
Storage: Store in a cool place and keep it sealed to avoid direct sunlight.
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