Chemical products
  • Ethyl Ascorbic Acid CAS 86404-04-8

Ethyl Ascorbic Acid CAS 86404-04-8

Ethyl Ascorbic Acid (3-O-Ethyl-L-ascorbic acid), CAS 86404-04-8, is a stable water-soluble vitamin C derivative supplied for cosmetic brightening and antioxidant applications. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

  • CAS: 86404-04-8
  • Synonyms: 3-O-Ethyl-L-ascorbic acid, Vitamin C ethyl ether, 3-O-Ethyl ascorbate
  • Einecs: 617-849-3
  • Molecular Formula: C₈H₁₂O₆
  • Grade: Cosmetic grade, assay ≥99% (HPLC)
  • Package: 1 kg aluminum foil bag; 25 kg fiber drum; or customized industrial packaging for bulk orders
Request a quote
Share:

Product Description

Ethyl Ascorbic Acid, CAS 86404-04-8, also known as 3-O-ethyl-L-ascorbic acid or Vitamin C ethyl ether, is a stable, water-soluble vitamin C derivative; the EC/EINECS number is 617-849-3.

Synonyms: 3-O-Ethyl-L-ascorbic acid; Vitamin C ethyl ether; 3-O-Ethyl ascorbate.

CAS: 86404-04-8.

Molecular formula: C₈H₁₂O₆.

Molecular weight: 204.18.

EC number: 617-849-3.

It is a white to off-white crystalline powder, practically odorless, freely soluble in water and soluble in ethanol and glycols.

A 1–3% aqueous solution typically has a pH of about 3.0–5.0, and the melting point is about 110–116 °C.

It is most stable around pH 3.0–6.5 (optimum about 5.0–6.0); typical cosmetic controls include assay ≥99.0% (HPLC), heavy metals ≤10 ppm and loss on drying ≤1.0%.

It is used as a skin-brightening and tone-evening active in serums, spot treatments, day/night creams and masks to reduce hyperpigmentation and age spots.

It acts as an antioxidant against UV- and pollution-induced free radicals and supports collagen synthesis to improve firmness, elasticity and the appearance of fine lines.

It is used in daily antioxidant products and combined with niacinamide, arbutin, tranexamic acid or alpha-arbutin in multi-functional brightening systems.

Confirm assay, appearance, pH, melting point, heavy metals, loss on drying and residual solvents; the recommended cosmetic use level is typically about 0.5–3.0% w/w.

Store in tightly closed, light-protected containers at 2–8 °C in a cool, dry, well-ventilated area, away from heat, moisture and strong oxidizers; use powder-handling controls and suitable PPE.

Confirm the current product-specific specification.

Confirm packaging with the requested quantity and destination requirements.

Document requirements should be confirmed from the current specification, SDS, COA or other product-specific files.

The page is an RFQ entry point and does not state stock, price, MOQ or fixed lead time.

For an RFQ, state the intended use, required specification, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

  • Q:

    What is Ethyl Ascorbic Acid CAS 86404-04-8?

    A: It is 3-O-Ethyl-L-ascorbic acid, also called Vitamin C ethyl ether, a stabilized vitamin C derivative used mainly in cosmetic brightening and antioxidant formulations. The ethyl group protects the molecule from oxidation while retaining skin-care activity.
  • Q:

    How does 3-O-Ethyl-L-Ascorbic Acid differ from L-Ascorbic Acid?

    A: L-Ascorbic Acid, CAS 50-81-7, is highly active but unstable in many aqueous formulations. 3-O-Ethyl-L-Ascorbic Acid is more resistant to oxidation and discoloration, offers better formulation stability, and is widely used in water-based skin-care products.
  • Q:

    Is Ethyl Ascorbic Acid suitable for clear serums and water-based formulations?

    A: Yes. It is water-soluble and is often formulated into clear serums, toners, essences, lotions and masks. For best stability, formulations commonly target a pH around 5.0-6.0, and suppliers may recommend a slightly different range depending on the grade.
  • Q:

    What cosmetic benefits does Ethyl Ascorbic Acid provide?

    A: It is used to support skin brightening, even skin tone, antioxidant protection and collagen-related skin care. It helps inhibit tyrosinase activity and reduce melanin formation, so it is common in anti-aging, spot-care and daily radiance products.
  • Q:

    What is the recommended use level of Ethyl Ascorbic Acid in cosmetics?

    A: Typical use levels are about 0.5-3.0% w/w in finished formulations, depending on product type and target performance. Formulators should confirm the supplier grade, pH, solubility and compatibility with the base formula.
  • Q:

    How should Ethyl Ascorbic Acid CAS 86404-04-8 be stored and handled?

    A: Store in tightly closed, light-protected containers in a cool, dry place, away from strong oxidizers and excessive heat. Use powder-handling controls and suitable PPE, and follow the safety information for spill, disposal and first-aid procedures.

Ordering & Documentation

Key information for document requests, quotations, and supply planning.

Documents

Tell us which documents your procurement team needs. Before an order, we will check whether the quoted source can provide them for the offered lot.

Quotation

Send the CAS number, grade, quantity, packing preference and destination.

Sample & Supply

Ask whether samples, trial quantities or repeat orders are possible. We will check each request against the sourced product and current offer.

Storage & Shipping

Product-specific conditions are confirmed before order.

Contact Form

Use our contact form to send us your questions, suggestions or comments. We will respond as soon as possible.
For a quotation, please include the product name or CAS number, quantity, grade or application, and destination country or port. Tell us if you need a sample, COA, TDS or SDS.