1,8-Octanediol
CAS 629-41-4
EC 211-090-8
Formula C8H18O2
MW 146.23 g/mol
Alcohols & Glycols Personal Care & CosmeticsCoatings, Adhesives, Sealants & ElastomersFood & Nutrition Flavoring & AcidulantEmulsification & DispersionSurface Modification & Wetting
Description
1,8-Octanediol (CAS 629-41-4) is a straight-chain aliphatic diol also known as ODOL, NSC 81228, and octan-1,8-diol. It carries no assigned E-code and is classified under HS code 29053980. The compound is commercially relevant across personal care, coatings, and food-adjacent applications.
In personal care formulations, 1,8-octanediol functions as an emulsion stabilizer and antimicrobial co-preservative by disrupting microbial membrane integrity at low concentrations. In coatings and adhesive systems, it serves as a reactive diol building block for polyurethane and polyester synthesis, influencing chain length and flexibility. It also acts as a conditioning emollient in hair care by reducing surface friction.
The material is available in powder and crystalline flake grades suitable for cosmetic and industrial use, with supply compliant with REACH registration requirements. Procurement quantities typically range from kilogram samples to multi-tonne bulk. Buyers should confirm grade-specific purity specifications against their formulation or synthesis requirements.
In personal care formulations, 1,8-octanediol functions as an emulsion stabilizer and antimicrobial co-preservative by disrupting microbial membrane integrity at low concentrations. In coatings and adhesive systems, it serves as a reactive diol building block for polyurethane and polyester synthesis, influencing chain length and flexibility. It also acts as a conditioning emollient in hair care by reducing surface friction.
The material is available in powder and crystalline flake grades suitable for cosmetic and industrial use, with supply compliant with REACH registration requirements. Procurement quantities typically range from kilogram samples to multi-tonne bulk. Buyers should confirm grade-specific purity specifications against their formulation or synthesis requirements.
Physical Properties
| Melting Point | 63 °C |
| Boiling Point | 172 °C @ Press: 20 Torr |
| Density | 1,053g/cm |
| Flash Point | 148°C |
| Appearance | colorless to white crystals or flakes |
| Color | Off-white to pale yellow |
| Form | Powder or Crystalline |
| Water Solubility | Soluble in water and methanol. |
| Refractive Index | 1,438-1,44 |
| Log P | 0.970 (est) |
Trade & Regulatory
| HS Code | 29053980 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
octanediolODOLω-OctanediolOctan-1,8-diolα,ω-Octanediol1,8-0ctanediolOctane-1,8-diol
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