Cyclododecanediol

---

Cyclododecanediol (CDDD) C12CD, manufactured by INVISTA Corporation in the United States, is a unique mixture of cyclic 12-carbon diol isomers, primarily composed of 1,4-, 1,5-, and 1,6-dodecanediols (CAS numbers 41417-03-2, 13474-05-0, and 14435-21-3, respectively).

Molecular formula: C₁₂H₂₄O₂

Molecular weight: 200.3

Structural formula:

Physicochemical properties:

This product is a white granular solid with a melting point of 93-94℃, a boiling point of 185℃, and a flash point (closed cup) of 176℃.

INVISTA, Inc. (USA) grade C12CD contains a total glycol content ≥97.0%, a dodecylcycloalkyl diol content ≥93.0%, dodecyl alcohol ≤0.2%, and hydroxycyclododecanoate ≤0.8%.

Properties and Applications:

Dodecylcycloalkyl diol is a secondary hydroxyl diol that can be used in the production of polyester polyols, polyurethanes, lubricants, pharmaceutical intermediates, polymer crosslinking agents, inks and coatings, adhesives, and elastomers. It imparts resistance to biodegradation and excellent resistance to hydrolysis and photothermal aging to polymers.