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bis(tri-n-butylstannyl)acetylene

Also known as: 1,2-bis(tributylstannyl)acetylene, 1,2-bis(tributylstannyl)ethyne, 1,2-ethynediylbis(tributylstannane), 1,2-bis(tri-n-butylstannyl)acetylene, 1,2-bis(tri-n-butylstannyl)ethyne, bis(tributylstannyl)acetylene, bis(tributylstannyl)ethyne, bis-(tributylstannyl)acetylene, tributyl(2-tributylstannylethynyl)stannane, MFCD00010239, OR7761, NSC-203205

bis(tri-n-butylstannyl)acetylene (CAS 994-71-8) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C26H54Sn2 and a molecular weight of 604.10900 g/mol. Key properties include a boiling point of 497.5ºC at 760mmHg, a density of 1.147 g/mL at 25 °C(lit.) and a flash point of 254.3ºC. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H312 — Harmful 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.
994-71-8
Jingsj CID
J-48123-2
Molecular Formula
C26H54Sn2
Molecular Weight
604.10900 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point497.5ºC at 760mmHg
Density1.147 g/mL at 25 °C(lit.)
Flash Point254.3ºC
Exact Mass606.22700
LogP9.76640
Refractive Indexn20/D 1.493(lit.)

GHS Safety & Compliance

Acute Toxicity / Health Hazard / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H312 — Harmful 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 Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of bis(tri-n-butylstannyl)acetylene?

The CAS number of bis(tri-n-butylstannyl)acetylene is 994-71-8.

What are the molecular formula and molecular weight of bis(tri-n-butylstannyl)acetylene?

bis(tri-n-butylstannyl)acetylene has molecular formula C26H54Sn2 and molecular weight 604.10900 g/mol.

Is bis(tri-n-butylstannyl)acetylene hazardous?

bis(tri-n-butylstannyl)acetylene has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H312 — Harmful 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-butylstannyl)acetylene (CAS 994-71-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48123-2 (accessed 2026-11-09).

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