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1,1,1,3,3,5,5-Heptamethyltrisiloxane

Also known as: 1,1,1,3,3,5,5-HEPTAMETHYLTRISILOXANE, 1,1,1,3,3,5,5-HEPTAMETHYLTRISILOXANE 90%, 1,1,1,3,3,5,5-Heptamethyltrisiloxane, >90%, 1,1,3,3,5,5,5-Heptamethylpentanetrisiloxane, 1,1,3,3,5,5,5-Heptamethylpentanetrisiloxane, 90%, 1,1,3,3,5,5,5-heptamethyl-1-hydrotrisiloxane, DK715, MFCD00054788, Trisiloxane, 1,1,1,3,3,5,5-heptamethyl-

1,1,1,3,3,5,5-Heptamethyltrisiloxane (CAS 2895-07-0) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C7H21O2Si3 and a molecular weight of 222.505 g/mol. Key properties include a boiling point of 163.8±23.0 °C at 760 mmHg, a density of 0.82 and a flash point of 52.8±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
2895-07-0
Jingsj CID
J-1481683-2
Molecular Formula
C7H21O2Si3
Molecular Weight
222.505 g/mol
Category
Aliphatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point163.8±23.0 °C at 760 mmHg
Density0.82
Flash Point52.8±22.6 °C
Exact Mass222.092758
PSA18.46000
LogP5.32
Vapor Pressure2.7±0.3 mmHg at 25°C
Storage Conditions2~8℃

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 1,1,1,3,3,5,5-Heptamethyltrisiloxane?

The CAS number of 1,1,1,3,3,5,5-Heptamethyltrisiloxane is 2895-07-0.

What are the molecular formula and molecular weight of 1,1,1,3,3,5,5-Heptamethyltrisiloxane?

1,1,1,3,3,5,5-Heptamethyltrisiloxane has molecular formula C7H21O2Si3 and molecular weight 222.505 g/mol.

What are the upstream and downstream products of 1,1,1,3,3,5,5-Heptamethyltrisiloxane?

For 1,1,1,3,3,5,5-Heptamethyltrisiloxane, Upstream Products: Pentamethyldisiloxane.

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

Last updated:

How to cite: Jingsj. "1,1,1,3,3,5,5-Heptamethyltrisiloxane (CAS 2895-07-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1481683-2 (accessed 2026-11-09).

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