Methyl Cocoate is an ester derived from coconut fatty acids and methanol. This compound is used in various cosmetic formulations for its emollient and moisturizing properties. Methyl Cocoate is recognized for its ability to enhance skin texture and provide a lightweight, non-greasy feel, making it ideal for use in lotions, creams, and hair care products. It serves as an effective solvent and emulsifier, helping to blend oil and water phases in formulations.

Chemical Composition and Structure

Methyl Cocoate is composed of:

• Coconut Fatty Acids: Derived from coconut oil, these fatty acids provide emollient properties and contribute to the moisturizing effects of the compound.
• Methanol: A simple alcohol that acts as the alcohol component in the esterification process.

Structurally, Methyl Cocoate features a hydrophobic tail derived from fatty acids and a hydrophilic head from the methanol, which facilitates its emulsifying properties and helps stabilize formulations.

Physical Properties

• Appearance: Typically a clear to slightly yellow liquid.

• Solubility: Soluble in oils and organic solvents; limited solubility in water.

• pH: Generally neutral, around 6-7, depending on the formulation.

• Odor: Mild, characteristic of coconut.

• Stability: Stable under normal storage conditions; should be kept away from light and heat.

Production Process

1. Synthesis: Methyl Cocoate is produced through the transesterification of coconut fatty acids with methanol, typically using a catalyst to promote the reaction.

2. Purification: The resulting ester undergoes purification processes to remove any unreacted materials, free fatty acids, and other impurities, ensuring a high-quality ingredient.

3. Formulation: Purified Methyl Cocoate is incorporated into various cosmetic formulations to enhance texture, stability, and moisture retention.

Applications

• Medical: Limited use in topical formulations requiring moisturizing effects.

• Cosmetics: Commonly found in creams, lotions, shampoos, and conditioners for its emollient and emulsifying properties. It enhances the spreadability and feel of products on the skin and hair.

• Food: Not typically used in food products; primarily utilized in personal care applications.

• Industrial Uses: May be employed in industrial formulations requiring emollients and emulsifying agents.

Environmental and Safety Considerations

Methyl Cocoate is generally regarded as safe for use in cosmetics when applied according to recommended guidelines. 

It is well-tolerated by most skin types, including sensitive skin. 

Responsible sourcing and formulation practices are essential to ensure that the ingredient is free from harmful contaminants and produced sustainably.

Molecular formula: CH₃(CH₂)₁₁COOCH₃

CAS: 61788-59-8

UNII 92396UOJ5Z

EC Number:  262-988-1

MDL number  

PubChem Substance ID 

Synonyms:

• Coco fatty acids methyl esters
• Coconut oil acid, methyl esters

References__________________________________________________________________________

Burnett Christina L., et al. Final report on the safety assessment of Cocos nucifera (coconut) oil and related ingredients. International journal of toxicology, 2011, 30.3_suppl: 5S-16S.

Abstract. Cocos nucifera (coconut) oil, oil from the dried coconut fruit, is composed of 90% saturated triglycerides. It may function as a fragrance ingredient, hair conditioning agent, or skin-conditioning agent and is reported in 626 cosmetics at concentrations from 0.0001% to 70%. The related ingredients covered in this assessment are fatty acids, and their hydrogenated forms, corresponding fatty alcohols, simple esters, and inorganic and sulfated salts of coconut oil. The salts and esters are expected to have similar toxicological profiles as the oil, its hydrogenated forms, and its constituent fatty acids. Coconut oil and related ingredients are safe as cosmetic ingredients in the practices of use and concentration described in this safety assessment.

Rockwell, N. M., & Rao, Y. K. (1994, November). The Increasing Importance of Methyl Ester Sulfonates as Surfactants. In Proceedings of the World Conference on Lauric Oils: Sources, Processing, and Applications (p. 138). The American Oil Chemists Society.