Zinc Ricinoleate is the zinc salt of ricinoleic acid, a hydroxylated unsaturated fatty acid associated with castor-oil chemistry. It is identified by CAS No. 13040-19-2 and has the molecular formula C36H66O6Zn, with a molecular weight of approximately 660.3 g/mol.

Zinc Ricinoleate contains two ricinoleate residues coordinated with zinc. The combination of the hydroxylated fatty-acid structure and zinc carboxylate functionality gives the material particular utility in formulations designed for odor control and in selected cosmetic and specialty chemical applications.

Synonyms - Zinc Diricinoleate; 12-Hydroxy-9-octadecenoic acid, zinc salt; Zinc bis[(9Z,12R)-12-hydroxy-9-octadecenoate]; Zinc ricinoleate.

Applications of Zinc Ricinoleate

Odor-Control Formulations: Zinc Ricinoleate is particularly recognized for its use as an odor-control ingredient. It can interact with selected odor-causing compounds and is therefore used in formulations intended to reduce perceived malodor rather than simply masking it with fragrance.

Deodorant Products: Zinc Ricinoleate is used in cosmetic deodorant formulations as an odor-control component. Its function is associated with binding or complexing selected odor molecules, making it suitable for personal-care systems where odor reduction is a primary formulation objective.

Cosmetic Formulations: Zinc Ricinoleate has documented cosmetic functions including deodorant, opacifying and anticaking applications. These properties make it relevant to the development of selected personal-care formulations.

Fragrance and Odor Management: The odor-binding characteristics of Zinc Ricinoleate make it useful in formulations where reduction of unwanted odor is required alongside or instead of conventional fragrance masking. It is consequently relevant to specialty fragrance and odor-management formulations.

Household and Institutional Products: Zinc Ricinoleate is reported in household and commercial product categories associated with odor management, including selected home, automotive and pet-care applications.

Specialty Chemical Formulations: As a zinc salt of a hydroxylated fatty acid, Zinc Ricinoleate can also serve as a functional ingredient in specialty formulations where fatty-acid-derived zinc carboxylate chemistry is desirable.

Chemical Information

Chemical Class: Zinc carboxylate / fatty-acid zinc salt.
Molecular Formula: C36H66O6Zn.
Molecular Weight: 660.3 g/mol.
IUPAC Name: Zinc bis[(9Z,12R)-12-hydroxy-9-octadecenoate].

Zinc Ricinoleate is structurally derived from ricinoleic acid. Its two ricinoleate ligands retain the hydroxylated, unsaturated C18 fatty-acid framework, while the carboxyl groups form the zinc salt. This structure is central to its use as a functional odor-control material.

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