UV filters in cosmetics
Introduction of UV filters in Cosmetics
UV filters are typical UVB absorbers; their absorption maximum lies in the 280-320 nm range. Some UV filters are broad-spectrum filters, i.e., they absorb both in the UVA (320-400 nm) and the UVB (280-320 nm) ranges. The 3rd type UV filters only absorb in the UVA range.
UV filters provide vital protection for the skin against UV radiation. They are now increasingly being used, not only in sun preparations and sunscreen but also in other skin cosmetics such as day creams. For the daily care products, where UVA photo stability is key, the modern, latest available UV filters of the range meet those requirements.
As both oil-soluble and water-dispersible types are available, there are products for almost every cosmetic preparation, including emulsions, oil, gels, sticks, etc.
Table 1 Baoxu UV filters in Cosmetics
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| Grade name | Chemical name | CAS number | BASF Grade |
| BP-1(UV-0) | Benzophenone-1 | 131-56-6 | |
| BP-2 | Benzophenone-2 | 131-55-5 | |
| BP-3(UV-9) | Benzophenone-3 | 131-57-7 | |
| BP-4(UV-284) | Benzophenone-4 | 4065-45-6 | Uvinul MS 40 |
| BP-6 | Benzophenone-6 | 131-54-4 | |
| BP-8 | Benzophenone-8 | 131-53-3 | |
| BP-12(UV-531) | Benzophenone-12 | 1843-05-6 | |
| BENZOPHENONE | Benzophenone | 119-61-9 | |
| OS | Ethylhexyl Salicylate | 118-60-5 | |
| HMS | Homosalate | 118-56-9 | |
| AVO | Butyl Methoxydibenzoylmethane/Avobenzone | 70356-09-1 | |
| OCR/3039 | Octocrylene | 6197-30-4 | Uvinul N 539 T |
| OMC | Ethylhexyl Methoxycinnamate | 5466-77-3 | Uvinul MC 80 |
| UV-T | Phenylbenzimidazole Sulfonic Acid | 27503-81-7 | |
| EHT/T150 | Ethylhexyl Triazone | 88122-99-0 | Uvinul T 150 |
| HEB | Diethylhexyl Butamido Triazone | 154702-15-5 | |
| DHHB/BMTZ | Diethylamino Hydroxybenzoyl Hexyl Benzoate | 302776-68-7 | Uvinul A Plus |
| DPDT | Disodium Phenyl Dibenzimidazole Tetrasulfonate | 180898-37-7 | |
| BEMT/S | Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine | 187393-00-6 | Tinsorb S |
| MBBT/UV M | Methylene bis-benzotriazolyl tetramethylbutylphenol | 103597-45-1 | Tinosorb M |
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UV Ethylhexyl Triazone Properties Chemical name：2,4,6-Trianilino-p-(carbo-2′-ethylhexyl-1′-oxy)-1,3,5-triazine Synonyms：Ethylhexyl Triazone；Octyl Triazone；Uvinul T 150 CAS code：88122-99-0 Molecular Formula：C48H66N6O6 Molecular Structure： HS code.：2933699099 Specifications： 1).Appearance： White to off-white powder 2). Assay：98.0-103.0% 3). Melting point：128.0-132.0℃ 4). Water：0.5% max 5). Color：2.0 max 6). Specific extinction：314nm,1500 min Uses： UV 150 is an ultraviolet absorber, it is oil soluble with the strongest UV-B…
UV Homosalate Properties Chemical name：3,3,5-Trimethylcyclohexyl Salicylate Synonyms：Homosalate；HMS CAS code：118-56-9 Molecular Formula：C16H22O3 Molecular Structure： HS code：2918230000 Specifications： 1). Appearance： Colorless to pale yellow viscous liquid 2). Purity：99.0% min 3). Specific Gravity：1.049-1.053 4). Refractive Index：1.516 – 1.519 5). Saponification Value：200.0 – 230.0 6). Specific extinction（1%，1cm in methanol） ：306nm，170-180 Uses： UV HMS is a kind of ultraviolet UVB…
UV Octisalate Properties Chemical name：2-Ethylhexyl Salicylate Synonyms：Ethylhexyl Salicylate；Octisalate；Octyl Salicylate；OS CAS code：118-60-5 Molecular Formula：C15H22O3 Molecular Structure： HS code：2918230000 Specifications： 1). Appearance： Clear colorless or yellowish liquid 2). Purity：99.5 % 3). Acidity：0.2 max 4). Saponification value（mg KOH/g） ：200.0-230.0 5). Refractive index（20℃） ：1.500-1.503 6). Specific gravity：1.011-1.016 7). Specific extinction (E1 %, 1 cm at 305 nm in ethanol)：165-185…
UV Tinosorb S Properties Chemical name：2,2′-[6-(4-Methoxyphenyl)- 1,3,5-triazine-2,4-diyl] bis{5-[(2-ethylhexyl)oxy]phenol} Synonyms：Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine； Bemotrizinol；Tinosorb S；Bemotrizinol CAS code：187393-00-6 Molecular Formula：C38H49N3O5 Molecular Structure： HS code：2933699099 Specifications： 1). Appearance：Light yellow powder 2). Purity：98.0 % min 3). Dry loss：2.0 % max 4). Specific extinction：345nm, 790 min Uses： UV S is a new broad-spectrum sunscreen, that belongs to the oil-soluble chemical sunscreen,…
UV Benzophenone 4 Properties Chemical name：2-Hydroxy-4-Methoxy Benzophenone-5-Sulfonic Acid Synonyms：Benzophenone-4; BP-4；UV-284 CAS code：4065-45-6 Molecular Formula：C14H12O6S Molecular Structure： HS code：2914790090 Specifications： 1). Appearance： Off-white powder 2). Purity：99.5 % min 3). Melting point：160.0℃ min 4). Dry loss：2.0 % max 5). Color：4.0 max 6). Specific extinction：285nm，460min；325nm，290min Uses： UV BP-4 is a kind of broad-spectrum UV absorber, with the advantage…
UV Benzophenone 1 Chemical Name: 2,4-DihydroxyBenzophenone, C13H10O3 Synonyms: BP-1, UV-0 Specification: Appearance: Off white or light yellow crystalline powderAssay: 99.0%minMelting Point: 142.0-146.0℃Gardner Color(2%，w/v，in methanol）: 3.0 maxSpecific Extinction(1%,1cm) E290: 630 minLoss on drying: 0.2% maxHeavy Metals: 5ppm maxBurnt Residue: 0.5% max Application: BP-1 is a benzophenone class UV absorber, suited for polyolefins, PVC, polystyrene etc. also as…
UV Benzophenone 8 Introduction Benzophenone-8 acts as a UV absorber and provides strong UV absorption. Offers very good compatibility with polymers and other stabilizer chemistries. Chemical Name: 2,2′-Dihydroxy-4-methoxybenzophenone Synonyms: Cytec UV 24 Specification: Molecular Weight 244 Melting Point 68 °C Specific Gravity @25 °C 1.38 g/cm3 Moisture content < 0.05 % Congealing point > 68.0 °C Insoluble in Toluene,…
UV Benzophenone 3 Introduction Benzophenone-3 is a UV absorber used in cosmetics including topical sunscreens, moisturizers, shampoos, hair care, lipstick, lip balms, nail polish, also plastic materials, dental composite materials. Furthermore, It is also used as color preserver in paints and varnishes. Chemical Name: 2-Hydroxy-4-Methoxy Benzophenone Synonyms: Benzophenone-3, UV-9, Oxybenzone Specification: Appearance: Pale greenish-yellow crystalline…
UV Benzophenone 2 Introduction BP-2 affords a wide absorption range, and it’s particularly suitable for use as a UV-A filter for cosmetic protection, particularly to protect colorants against fading. Chemical Name: 2,2’,4,4’-Tetrahydroxy Benzophenone Synonyms: BP-2 Specification: Appearance: Pale greenish-yellow crystalline powderAssay: 99.0%minSolubility: Clear solution, free from insolubleMelting Point: 195.0－203.0℃Gardner Color: 3.0 maxSpecific Extinction (1%,1cm) E345nm:…
