Compound Q&A
What is Polydimethylsiloxane, hydroxy terminated (CAS: 70131-67-8)?
Answer
Polydimethylsiloxane (PDMS), hydroxy terminated (CAS: 70131-67-8), is a synthetic silicone oil with a molecular weight of 4200. It features hydroxyl (-OH) end groups and a polymeric structure of -Si(CH3)2-O- repeating units. This compound is colorless, non-reactive, and exhibits low surface tension, high thermal stability, and excellent water repellency, making it versatile for various industrial and scientific applications.
About
CAS No
70131-67-8
English Name
Polydimethylsiloxane, hydroxy terminated, M.W. 4200
Molecular Formula
C2H8O2Si
Molecular Weight
92.17 g/mol
EINECS
615-070-3
SMILES
C[Si](O)(O)C
InChIKey
XCLIHDJZGPCUBT-UHFFFAOYSA-N
Last Updated: 2025-08-25 01:07
