Benzophenone, with CAS number 119-61-9, is a synthetic aroma chemical commonly used in perfumery for its ability to absorb UV light, making it a popular choice in formulations designed to enhance the stability of fragrances exposed to sunlight. It is often incorporated into products such as sunscreens and other cosmetic formulations to protect fragrance integrity. In terms of olfactory character, Benzophenone is known for its sweet, floral, and slightly powdery scent, which can add depth and complexity to a fragrance composition. It typically sits in the middle to base notes of a formula, contributing to the overall longevity and richness of the scent. However, it is important to note that Benzophenone is subject to regulatory scrutiny, particularly in the context of IFRA guidelines, as it may have restrictions based on its concentration in finished products. Perfumers should be aware of these regulations and consider the potential for sensitization in consumers, as well as the need for proper labeling in accordance with allergen declarations. — AI-generated summary, 2026-09-02.
A soft, faintly sweet balsamic material with a delicate rose-geranium and powdery floral character. Very mild in odor and primarily used as a fixative and UV absorber, lending subtle warmth and diffusion to floral bases.AI · claude-opus-4-7
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Perfume and Flavor Chemicals, page 126.
White rhombic crystals or amorphous flakes.
Insoluble in water and glycerin, slightly soluble in propylene glycol, soluble in alcohol, soluble in most perfume oils.
Very faint, powdery-rosy, geranium-like odor with a slightly metallic note.
Used extensively in perfumes for sweet-woody-geranium-like notes in low-cost fragrances, soap perfumes, etc. Useful as a fixative.
Occasionally used in flavors for imitation Apricot, Berry, Butter, Fruit, Nut, Peach, Vanilla, etc.
1) From Benzylchloride plus Benzol (condens.). 2) From Benzonitrile plus Phenyl Magnesium bromide. 3) By oxidation of Diphenylmethane with chromic acid.