1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane
1,3,5-三甲基-1,3,5-三苯基环三硅氧烷
Also known as: 2,4,6-Trimethyl-2,4,6-triphenylcyclotrisiloxane, Trimethyltriphenylcyclotrisiloxane, Triphenyltrimethylcyclotrisiloxane, sym-Trimethyltriphenylcyclotrisiloxane, Phenylmethylsiloxane cyclic trimer, LS 8490
1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane (CAS 546-45-2) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H24O3Si3 and a molecular weight of 408.670 g/mol. It is also known as 2,4,6-Trimethyl-2,4,6-triphenylcyclotrisiloxane, Trimethyltriphenylcyclotrisiloxane and Triphenyltrimethylcyclotrisiloxane. Key properties include a melting point of 100°C, a boiling point of 402.3±18.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 163.2±21.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 546-45-2
- Jingsj CID
- J-40991-3
- Molecular Formula
- C21H24O3Si3
- Chinese Name
- 1,3,5-三甲基-1,3,5-三苯基环三硅氧烷
- Molecular Weight
- 408.670 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 100°C |
|---|---|
| Boiling Point | 402.3±18.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 163.2±21.6 °C |
Frequently Asked Questions
What is the CAS number of 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane?
The CAS number of 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane is 546-45-2.
What are the molecular formula and molecular weight of 1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane?
1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane has molecular formula C21H24O3Si3 and molecular weight 408.670 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3,5-Trimethyl-1,3,5-triphenylcyclotrisiloxane (CAS 546-45-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-40991-3 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.