1,8-octanediol

1,8-Octanediol (CAS 629-41-4), also known as 1,8-Dihydroxyoctane and supplied commercially as ORISTAR OTD, is a straight-chain diol used as a functional ingredient across personal care, coatings, and food-contact applications.

Its bifunctional hydroxyl structure supports emulsification, surface wetting, and crosslinking roles in formulated systems. In personal care formulations, it functions as an emollient and antimicrobial co-preservative.

This ingredient helps to extend the efficacy of preservation systems in rinse-off and leave-on products. Coatings and adhesive formulators use it as a chain extender or reactive diol to modify flexibility and adhesion.

It is particularly effective in polyurethane and epoxy systems. In food-grade contexts, it is evaluated as a flavoring adjunct where controlled hydrophilicity supports flavor delivery and dispersion in emulsified matrices.

Sealant and elastomer manufacturers incorporate it to tune crosslink density and improve substrate wetting in cured formulations. This versatility makes it a staple for industrial and specialty chemical manufacturing.

1,8-Octanediol is typically supplied as a white crystalline solid or low-melting flake. Food-grade and technical-grade specifications are available to meet the sourcing requirements of different end markets.

Packaging options generally range from kilogram-scale bags to drum quantities, supporting both development-scale and commercial production volumes. We ensure high purity standards for all industrial applications.