CAS 556-68-3: Hexadecamethylcyclooctasiloxane
Description:Hexadecamethylcyclooctasiloxane, commonly referred to as D4, is a cyclic siloxane compound characterized by its unique structure consisting of eight silicon atoms and sixteen methyl groups. This compound is part of a larger class of siloxanes, which are known for their flexibility, thermal stability, and low surface tension. Hexadecamethylcyclooctasiloxane is typically a colorless, odorless liquid at room temperature and exhibits low viscosity. It is insoluble in water but soluble in organic solvents, making it useful in various applications, including cosmetics, personal care products, and industrial lubricants. The compound is also noted for its low volatility and high thermal stability, which contribute to its effectiveness as a silicone-based material. However, due to environmental and health concerns associated with siloxanes, including potential bioaccumulation and toxicity, its use is subject to regulatory scrutiny in many regions. Overall, Hexadecamethylcyclooctasiloxane is valued for its unique properties, but its environmental impact necessitates careful consideration in its applications.
Formula:C16H48O8Si8
InChI:InChI=1S/C16H48O8Si8/c1-25(2)17-26(3,4)19-28(7,8)21-30(11,12)23-32(15,16)24-31(13,14)22-29(9,10)20-27(5,6)18-25/h1-16H3
InChI key:InChIKey=XKJMJYZFAWYREL-UHFFFAOYSA-N
SMILES:O1[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si](O[Si]1(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C)(C)C
- Synonyms:
- 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16-Hexadecamethylcyclooctasiloxane
- Cyclooctasiloxane, 2,2,4,4,6,6,8,8,10,10,12,12,14,14,16,16-hexadecamethyl-
- Cyclooctasiloxane, hexadecamethyl-
- Hexadecamethylcyclooctasiloxane
