CAS: 112-45-8
2-Methylundecanal, also known as Aldehyde MNA, is an aliphatic aldehyde with the CAS number 112-45-8 and chemical formula C12H24O. It is a colorless to pale yellow liquid possessing a strong, waxy, fatty, and aldehydic odor, often described with floral (e.g., orris, iris) and citrus nuances. It is widely valued in the fragrance industry for its unique aroma profile, contributing to complex perfumery compositions.
Primarily used as a fragrance ingredient in perfumery and aroma compositions due to its distinctive aldehydic-fatty-floral scent. It also finds limited use as a flavoring agent in the food industry, but typically in very low concentrations.
In perfumery, 2-methylundecanal is a key component in creating various fragrance types, including floral (iris, muguet, mimosa), aldehydic, woody, and citrus accords. It is incorporated into fine fragrances, soaps, detergents, cosmetics, and other personal care products to enhance and modify their scent profiles. In the food industry, it is utilized in trace amounts to impart specific fatty or citrus notes in certain flavor formulations.
2-Methylundecanal is classified as causing skin irritation (H315) and serious eye irritation (H319). Precautionary measures include washing thoroughly after handling (P264), wearing protective gloves and eye/face protection (P280). In case of skin contact, wash with plenty of water (P302+P352). If in eyes, rinse cautiously with water for several minutes, removing contact lenses if present and easy to do (P305+P351+P338). If irritation persists, seek medical advice (P332+P313, P337+P313). It is listed by FEMA (No. 2748) as Generally Recognized As Safe (GRAS) for use as a flavoring agent, but usage levels are very low due to its potent aroma.
2-MethylundecanalAldehyde MNAMethyl N-undecyl aldehydeUndecanal2-methyl-2-Methyl-1-undecanalAldehyde C12 MNAAldehyde Intereieven
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