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Hexamethyldistannane

Also known as: Hexamethylditin, Bis(trimethyltin), ((CH3)3Sn)2, 1,1,1,2,2,2-Hexamethyldistannane, Distannane, hexamethyl-, Trimethyl (trimethylstannyl)stannane, NSC 227328

Hexamethyldistannane (CAS 661-69-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C6H18Sn2 and a molecular weight of 327.627 g/mol. Key properties include a melting point of 23-24 °C(lit.), a boiling point of 178.2±23.0 °C at 760 mmHg, a density of 1.58 g/mL at 20 °C(lit.) and a flash point of 61.1±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H300, H310 and H330 — Fatal if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
661-69-8
Jingsj CID
J-44132-7
Molecular Formula
C6H18Sn2
Molecular Weight
327.627 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point23-24 °C(lit.)
Boiling Point178.2±23.0 °C at 760 mmHg
Density1.58 g/mL at 20 °C(lit.)
Flash Point61.1±0.0 °C
Exact Mass329.945251
LogP7.14
Vapor Pressure1.4±0.3 mmHg at 25°C
Refractive Indexn20/D 1.540

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H300
  • H310
  • H330 — Fatal if inhaled
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of Hexamethyldistannane?

The CAS number of Hexamethyldistannane is 661-69-8.

What are the molecular formula and molecular weight of Hexamethyldistannane?

Hexamethyldistannane has molecular formula C6H18Sn2 and molecular weight 327.627 g/mol.

Is Hexamethyldistannane hazardous?

Hexamethyldistannane has GHS signal word Danger and hazard statements H300; H310; H330 — Fatal if inhaled.

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

Last updated:

How to cite: Jingsj. "Hexamethyldistannane (CAS 661-69-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44132-7 (accessed 2026-11-09).

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