Bis(tri-n-butyltin) oxide
Also known as: Bis(tri-n-butyltin) oxide, Bis(tributyltin) oxide, TBTO, Hexabutyldistannoxane, CAR-BAN(R), HBD, Distannoxane, 1,1,1,3,3,3-hexabutyl-, tributyl(tributylstannyloxy)stannane, Bis(tributyltin) oxide, BTO, MFCD00009418, EINECS 200-268-0
Bis(tri-n-butyltin) oxide (CAS 56-35-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C24H54OSn2 and a molecular weight of 596.105 g/mol. Key properties include a melting point of -45°C, a boiling point of 474.8±28.0 °C at 760 mmHg, a density of 1.17 g/mL at 25 °C(lit.) and a flash point of 241.0±24.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H311 — Toxic in contact with skin and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 56-35-9
- Jingsj CID
- J-1402720-4
- Molecular Formula
- C24H54OSn2
- Molecular Weight
- 596.105 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -45°C |
|---|---|
| Boiling Point | 474.8±28.0 °C at 760 mmHg |
| Density | 1.17 g/mL at 25 °C(lit.) |
| Flash Point | 241.0±24.0 °C |
| Exact Mass | 598.221863 |
| PSA | 9.23000 |
| LogP | 5.02 |
| Vapor Pressure | 0.0±1.1 mmHg at 25°C |
| Refractive Index | n20/D 1.486(lit.) |
| Additional Property | INSOLUBLE |
GHS Safety & Compliance
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H372 — Causes damage to organs through prolonged exposure
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 29310095 |
|---|
Frequently Asked Questions
What is the CAS number of Bis(tri-n-butyltin) oxide?
The CAS number of Bis(tri-n-butyltin) oxide is 56-35-9.
What are the molecular formula and molecular weight of Bis(tri-n-butyltin) oxide?
Bis(tri-n-butyltin) oxide has molecular formula C24H54OSn2 and molecular weight 596.105 g/mol.
Is Bis(tri-n-butyltin) oxide hazardous?
Bis(tri-n-butyltin) oxide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H311 — Toxic in contact with skin; H315 — Causes skin irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Bis(tri-n-butyltin) oxide (CAS 56-35-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1402720-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.