(3-chloropropyl)pentamethyldisiloxane

Also known as: 3-chloropropyl-dimethyl-trimethylsilyloxysilane, Disiloxane, 1-(3-chloropropyl)-1,1,3,3,3-pentamethyl-, Disiloxane,(3-chloropropyl)pentamethyl, 1-(3-chloropropyl)-1,1,3,3,3-pentamethyldisiloxane

(3-chloropropyl)pentamethyldisiloxane (CAS 18291-27-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H21ClOSi2 and a molecular weight of 224.87600 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 18291-27-5
Jingsj CID: J-1003362-2
Molecular Formula: C₈H₂₁ClOSi₂
Molecular Weight: 224.87600 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	224.08200
PSA	9.23000
LogP	3.67190

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-chloropropyl)pentamethyldisiloxane?

The CAS number of (3-chloropropyl)pentamethyldisiloxane is 18291-27-5.

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

(3-chloropropyl)pentamethyldisiloxane has molecular formula C8H21ClOSi2 and molecular weight 224.87600 g/mol.

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

For (3-chloropropyl)pentamethyldisiloxane, Upstream Products: Hexamethyldisiloxane, 3-Chloropropyldimethylchlorosilane.

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-chloropropyl)pentamethyldisiloxane (CAS 18291-27-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1003362-2 (accessed 2026-11-09).

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