Does Homosalate provide broad-spectrum UV protection on its own?

No. Homosalate mainly absorbs UVB radiation in the 295-315 nm range and is not a broad-spectrum filter by itself. Sunscreen and cosmetic formulations typically combine it with UVA filters such as avobenzone, zinc oxide, or other approved actives for balanced protection.

Why is Homosalate used as a solvent for avobenzone and other solid UV filters?

Homosalate is liquid at room temperature and oil-soluble, so it helps dissolve crystalline filters that are otherwise difficult to keep in solution. This can reduce recrystallization risk and support more uniform distribution of other UV absorbers in the oil phase.

Why does the liquid form of Homosalate matter in formulation?

Because it is a liquid rather than a powder, it is easier to incorporate into emulsions, oils, and sunscreen concentrates. It also contributes spreadability, although formulators often balance its oily feel with lighter esters or other cosmetic ingredients.

What are the main formulation roles of Homosalate?

Homosalate functions primarily as a UVB absorber and secondary solvent/carrier in sunscreens and sun-care cosmetics. It is usually used as part of a filter system rather than as the sole active, with the final blend selected for target SPF, skin feel, stability, and regulatory limits.

Homosalate CAS 118-56-9

Homosalate, also called homomenthyl salicylate or HMS, CAS 118-56-9, is an oil-soluble liquid UVB filter supplied in cosmetic or sunscreen UV-filter grade. Confirm the required grade and specification, then request a quotation with COA/TDS/SDS for bulk supply.

CAS: 118-56-9
Synonyms: Homomenthyl salicylate, HMS, 3,3,5-Trimethylcyclohexyl salicylate, m-Homomenthyl salicylate, Benzoic acid 2-hydroxy- 3,3,5-trimethylcyclohexyl ester
Einecs: 204-260-8
Molecular Formula: C₁₆H₂₂O₃
Grade: Cosmetic / Sunscreen UV Filter Grade
Package: 200 kg drum / 1000 kg IBC (customizable)

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Product Description

Homosalate CAS 118-56-9 is an oil-soluble liquid UVB filter, also known as homomenthyl salicylate or HMS, with molecular formula C16H22O3, molecular weight about 262.34 and EINECS 204-260-8.

Synonyms: Homomenthyl salicylate; HMS; 3,3,5-Trimethylcyclohexyl salicylate; m-Homomenthyl salicylate; Benzoic acid 2-hydroxy- 3,3,5-trimethylcyclohexyl ester.

CAS: 118-56-9.

It has the molecular formula C16H22O3 and a molecular weight of about 262.34 g/mol.

It appears as a clear, colorless to pale yellow liquid with a mild minty or aromatic odor.

It is insoluble in water and miscible with paraffin, vegetable oils and alcohols.

It boils at about 161–165 °C at reduced pressure and has a specific gravity of about 1.049–1.053 g/cm³.

It primarily absorbs UVB radiation in the 295–315 nm range and is not a broad-spectrum filter by itself.

As a liquid, it helps dissolve crystalline UV filters such as avobenzone and reduces recrystallization risk.

It is commonly paired with UVA filters to build broad-spectrum and water-resistant sunscreen formulations.

It is also used in hair-care sprays, foundations and color cosmetics for incidental UV protection.

It is hydrophobic, so it helps formulations resist wash-off during swimming or sweating.

As a raw material it can be an irritant; handle with eye protection, gloves and avoid inhaling mists.

Store in a cool, dry, ventilated area away from direct sunlight at about 15–25 °C.

Confirm appearance, assay, UV absorbance, specific gravity, refractive index and impurity limits as required.

Keep the drum or IBC sealed and protect from oxidation; typical shelf life is about 24 months when seals remain intact.

Confirm packaging with the requested quantity and destination requirements.

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 grade and specification, quantity, packaging, destination and document needs.

FAQ - Technical & Supply Chain

Q:
What is Homosalate CAS 118-56-9?

A: Homosalate CAS 118-56-9 is an oil-soluble liquid UVB filter with molecular formula C16H22O3, molecular weight about 262.34, and EINECS 204-260-8. It is also known as homomenthyl salicylate or 3,3,5-trimethylcyclohexyl salicylate.
Q:
Does Homosalate provide broad-spectrum UV protection on its own?

A: No. Homosalate mainly absorbs UVB radiation in the 295-315 nm range and is not a broad-spectrum filter by itself. Sunscreen and cosmetic formulations typically combine it with UVA filters such as avobenzone, zinc oxide, or other approved actives for balanced protection.
Q:
Why is Homosalate used as a solvent for avobenzone and other solid UV filters?

A: Homosalate is liquid at room temperature and oil-soluble, so it helps dissolve crystalline filters that are otherwise difficult to keep in solution. This can reduce recrystallization risk and support more uniform distribution of other UV absorbers in the oil phase.
Q:
Why does the liquid form of Homosalate matter in formulation?

A: Because it is a liquid rather than a powder, it is easier to incorporate into emulsions, oils, and sunscreen concentrates. It also contributes spreadability, although formulators often balance its oily feel with lighter esters or other cosmetic ingredients.
Q:
What are the main formulation roles of Homosalate?

A: Homosalate functions primarily as a UVB absorber and secondary solvent/carrier in sunscreens and sun-care cosmetics. It is usually used as part of a filter system rather than as the sole active, with the final blend selected for target SPF, skin feel, stability, and regulatory limits.

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