(3-Glycidoxypropyl)pentamethyldisiloxane

Also known as: 1,1,1,3,3-Pentamethyl-3-(3-(oxiran-2-ylmethoxy)propyl)disiloxane, 1,1,1,3,3-Pentamethyl-3-[3-(2-oxiranylmethoxy)propyl]disiloxane, 3,8-Dioxa-2,4-disilanonane,2,2,4,4-tetraMethyl-9-(2-oxiranyl)-, 3-[3-[(2,3-Epoxypropan)-1-yloxy]propyl]-1,1,1,3,3-pentamethylpropanedisiloxane, Disiloxane, 1,1,1,3,3-pentamethyl-3-[3-(oxiranylmethoxy)propyl]-, dimethyl-[3-(oxiran-2-ylmethoxy)propyl]-trimethylsilyloxysilane

(3-Glycidoxypropyl)pentamethyldisiloxane (CAS 18044-44-5) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C11H26O3Si2 and a molecular weight of 262.493 g/mol. Key properties include a boiling point of 254.5±15.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 89.9±20.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 18044-44-5
Jingsj CID: J-1175851-3
Molecular Formula: C₁₁H₂₆O₃Si₂
Molecular Weight: 262.493 g/mol
Category: Ethers
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	254.5±15.0 °C at 760 mmHg
Density	0.9±0.1 g/cm3
Flash Point	89.9±20.8 °C
Exact Mass	262.142059
PSA	30.99000
LogP	4.34
Vapor Pressure	0.0±0.5 mmHg at 25°C
Refractive Index	1.435

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of (3-Glycidoxypropyl)pentamethyldisiloxane?

The CAS number of (3-Glycidoxypropyl)pentamethyldisiloxane is 18044-44-5.

What are the molecular formula and molecular weight of (3-Glycidoxypropyl)pentamethyldisiloxane?

(3-Glycidoxypropyl)pentamethyldisiloxane has molecular formula C11H26O3Si2 and molecular weight 262.493 g/mol.

What are the upstream and downstream products of (3-Glycidoxypropyl)pentamethyldisiloxane?

For (3-Glycidoxypropyl)pentamethyldisiloxane, Upstream Products: Allyl glycidyl ether, Pentamethyldisiloxane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "(3-Glycidoxypropyl)pentamethyldisiloxane (CAS 18044-44-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1175851-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.