Caprylyl glycol
CAS 1117-86-8
EC 214-254-7
Formula C8H18O2
MW 146.23 g/mol
Alcohols & Glycols Personal Care & CosmeticsCoatings, Adhesives, Sealants & ElastomersPharmaceuticals & Healthcare Antioxidant & StabilizerHumectant & MoisturizingCross-linking & CuringEmulsification & DispersionPreservation & Biocide
Description
Caprylyl Glycol (CAS 1117-86-8), also known as 1,2-octanediol and sold under trade names such as LexGard O, is a C8 diol derived from caprylic acid. It carries no E-code designation and is not classified as a food additive. The compound is registered under REACH and assigned EC number 214-254-7.
In personal care formulations, Caprylyl Glycol functions as a preservation booster by disrupting microbial cell membranes, typically used at 0.3-1.0% alongside traditional preservatives to broaden antimicrobial coverage. In coatings and adhesive systems, it acts as a reactive diol, participating in crosslinking reactions with isocyanates or epoxies to modify film flexibility and cure density.
Caprylyl Glycol is available in cosmetic and technical grades, supplied as a low-melting solid in quantities ranging from kilogram samples to drum volumes. It complies with REACH registration requirements and is referenced in cosmetic ingredient inventories (INCI). Buyers should confirm grade suitability against Ph.Eur. or internal specifications prior to procurement.
In personal care formulations, Caprylyl Glycol functions as a preservation booster by disrupting microbial cell membranes, typically used at 0.3-1.0% alongside traditional preservatives to broaden antimicrobial coverage. In coatings and adhesive systems, it acts as a reactive diol, participating in crosslinking reactions with isocyanates or epoxies to modify film flexibility and cure density.
Caprylyl Glycol is available in cosmetic and technical grades, supplied as a low-melting solid in quantities ranging from kilogram samples to drum volumes. It complies with REACH registration requirements and is referenced in cosmetic ingredient inventories (INCI). Buyers should confirm grade suitability against Ph.Eur. or internal specifications prior to procurement.
Physical Properties
| Melting Point | 30 °C |
| Boiling Point | 130-134 °C @ Press: 10 Torr |
| Density | 0.914 |
| Flash Point | >230 °F |
| Appearance | colorless to white low melting solid |
| Color | Colorless to white |
| Form | Low Melting Solid |
| Water Solubility | 3 g/L (20 ºC) |
| Vapor Pressure | 0.28Pa at 25℃ |
| Refractive Index | 1.4505 (estimate) |
| Log P | 2.1 at 25℃ |
Safety & Handling (Learn More)
Warning GHS07
H
H319
P
P280P264+P265P337+P317P305+P351+P338
Trade & Regulatory
| HS Code | 29053990 |
| WGK (Germany) | 2 |
Other Names
Octane-1,2-Diol1,2-octanediol1,2-octylene glycolLexGard O1,2-Octandiol1,2-0ctanediol
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