What is Phenylethyl Resorcinol?

Phenylethyl Resorcinol, CAS 85-27-8, is a resorcinol derivative used in cosmetic formulations as a skin-brightening active. It is commonly known as a SymWhite 377 equivalent.

How does it work in skin-brightening products?

It inhibits tyrosinase activity, helping reduce melanin formation and supporting a more even skin tone. It is typically used in brightening serums, creams, lotions and spot-care products.

Is Phenylethyl Resorcinol water-soluble?

It has limited water solubility and is usually incorporated into the oil phase of an emulsion or pre-dissolved in a suitable cosmetic solvent such as ethanol, propylene glycol or another compatible vehicle.

What specifications should be checked before ordering?

Confirm appearance, HPLC assay, melting range, loss on drying, heavy metals and related impurities before ordering. Also verify that the cosmetic grade meets the finished-product limit for your target market.

Phenylethyl Resorcinol CAS 85-27-8

Phenylethyl Resorcinol (4-(1-phenylethyl)resorcinol), CAS 85-27-8, is a skin-brightening and antioxidant active supplied for cosmetic whitening formulations. Confirm the required grade, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 85-27-8
Synonyms: 4-(1-phenylethyl)benzene-1,3-diol, 4-(1-phenylethyl)resorcinol, 4-(alpha-methylbenzyl)resorcinol, 1,3-Benzenediol 4-(1-phenylethyl)-
Einecs: 480-070-0
Molecular Formula: C₁₄H₁₄O₂
Grade: Cosmetic Grade / Skin-Whitening Grade
Package: 1 kg foil bag / 5 kg aluminum tin / 25 kg drum

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Product Description

Phenylethyl Resorcinol, CAS 85-27-8, also known as 4-(1-phenylethyl)resorcinol, is a resorcinol derivative skin-brightening active; the EC/EINECS number is 480-070-0.

Synonyms: 4-(1-phenylethyl)benzene-1,3-diol; 4-(1-phenylethyl)resorcinol; 4-(alpha-methylbenzyl)resorcinol; 1,3-benzenediol, 4-(1-phenylethyl)-.

CAS: 85-27-8.

Molecular formula: C₁₄H₁₄O₂.

Molecular weight: 214.26.

EC number: 480-070-0.

It is a white to off-white crystalline powder with a melting point of about 78–82 °C and an HPLC purity typically ≥99%.

It is soluble in DMSO, ethanol and propylene glycol and slightly soluble in oils; it has limited water solubility and is usually incorporated into the oil phase or pre-dissolved in a cosmetic solvent.

It has a slight characteristic odor, heavy metals ≤10 ppm and loss on drying ≤0.5%, with excellent stability under normal cosmetic processing temperatures.

It is used as a high-efficiency skin-lightening and antioxidant active in whitening and brightening face creams and anti-pigmentation serums.

It is used in spot-removal essences, lotions, gels, emulsions and transparent essence systems.

It inhibits tyrosinase activity to help reduce melanin formation and support a more even skin tone; it is commonly known as a SymWhite 377 equivalent.

Confirm appearance, HPLC assay, melting range, loss on drying, heavy metals and related impurities; verify the cosmetic grade meets the finished-product limit for the target market.

Store in tightly closed, light-protected containers in a cool, dry place, away from 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 Phenylethyl Resorcinol?

A: Phenylethyl Resorcinol, CAS 85-27-8, is a resorcinol derivative used in cosmetic formulations as a skin-brightening active. It is commonly known as a SymWhite 377 equivalent.
Q:
How does it work in skin-brightening products?

A: It inhibits tyrosinase activity, helping reduce melanin formation and supporting a more even skin tone. It is typically used in brightening serums, creams, lotions and spot-care products.
Q:
Is Phenylethyl Resorcinol water-soluble?

A: It has limited water solubility and is usually incorporated into the oil phase of an emulsion or pre-dissolved in a suitable cosmetic solvent such as ethanol, propylene glycol or another compatible vehicle.
Q:
What specifications should be checked before ordering?

A: Confirm appearance, HPLC assay, melting range, loss on drying, heavy metals and related impurities before ordering. Also verify that the cosmetic grade meets the finished-product limit for your target market.
Q:
How should Phenylethyl Resorcinol be stored and handled?

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

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