For research use only. Not for therapeutic Use.
Octamethylcyclotetrasiloxane (CAT: R021357), also known as D4, is a cyclic siloxane compound that belongs to the class of organosilicon compounds. It is composed of four silicon atoms and eight methyl groups in a cyclic arrangement. Octamethylcyclotetrasiloxane is widely used as a volatile carrier fluid, solvent, or diluent in various industries including cosmetics, personal care products, pharmaceuticals, and industrial applications. Due to its low viscosity, volatility, and compatibility with other ingredients, it is often used as a base in formulations such as lotions, creams, and hair care products.
| Catalog Number | R021357 |
| CAS Number | 556-67-2 |
| Synonyms | 2,2,4,4,6,6,8,8-Octamethylcyclotetrasiloxane; Abil K 4; Cyclic dimethylsiloxane tetramer; D 4; DC 244; DC 344; DC 5258; DWQ 110; DWQ 120; Dabco DC 5258; Dow Corning 244; Dow Corning 244 Fluid; Dow Corning 344; KF 994; LS 8620; Mirasil CM 4; NSC 34567 |
| Molecular Formula | C8H24O4Si4 |
| Purity | ≥95% |
| Storage | -20°C |
| IUPAC Name | 2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocane |
| InChI | InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3 |
| InChIKey | HMMGMWAXVFQUOA-UHFFFAOYSA-N |
| SMILES | C[Si]1(O[Si](O[Si](O[Si](O1)(C)C)(C)C)(C)C)C |
