Butyl oleate
Butyl oleate (CAS: 142-77-8), with the chemical formula C22H42O2 and a molecular weight of 338.57 g/mol, is an ester derived from oleic acid and n-butanol. This compound is recognised for its emollient and lubricating properties, making it a valuable component in various industrial and cosmetic formulations. It serves as a plasticiser and a solvent in specific applications, contributing to the performance of diverse chemical products.
- IUPAC
- Oleic acid butyl ester
- Synonyms
- Oleic acid butyl ester

Cosmetic Formulations
Butyl oleate acts as an emollient and skin-conditioning agent in cosmetic and personal care products. Its lubricating properties help to improve the texture and spreadability of creams, lotions, and other topical treatments.
Industrial Lubricants
This ester is utilised in the formulation of industrial lubricants and cutting fluids. Its stability and lubricating characteristics contribute to reduced friction and wear in mechanical systems.
Plasticiser
Butyl oleate can function as a plasticiser in polymer applications. It helps to increase the flexibility and workability of various plastic materials.
Solvent Applications
Due to its solvency characteristics, butyl oleate finds use as a solvent in certain chemical processes and formulations. It can dissolve or disperse other substances effectively.
| Molecular weight | 338.57 |
|---|---|
| Empirical formula | C22H42O2 |
| Assay | ~75% |
| Density | 0.88 g/mL at 25 °C(lit.) |
| Storage temperature | 2-8°C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 1 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Butyl Oleate used for?
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Butyl Oleate is used in cosmetic formulations as an emollient, in industrial lubricants, as a plasticiser, and as a solvent in various chemical applications.
What is the CAS number and chemical formula for Butyl Oleate?
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The CAS number for Butyl Oleate is 142-77-8, and its chemical formula is C22H42O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Butyl Oleate with an assay of approximately 75%. This product is not represented as USP, BP, EP, or pharmacopoeia grade.
How should Butyl Oleate be handled safely?
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Handle Butyl Oleate with appropriate personal protective equipment, including eyeshields and gloves. Ensure adequate ventilation and use a suitable respirator if necessary, as it may cause skin irritation, serious eye irritation, and respiratory irritation (H315-H319-H335).
How is Butyl Oleate packed, shipped, and exported?
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Butyl Oleate is carefully packed according to industry standards to ensure safe transport. Tech Serve Solutions, as a specialist global supplier, handles the export of this chemical with expertise.
How can I request a sample or quote for Butyl Oleate?
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To request a sample or obtain a quote for Butyl Oleate, please contact the Tech Serve Solutions sales team through our website or direct contact details.
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