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5,5′-Bis(tributylstannyl)-2,2′-bithiophene

Also known as: Stannane, 1,1'-[2,2'-bithiophene]-5,5'-diylbis[1,1,1-tributyl-, tributyl-[5-(5-tributylstannylthiophen-2-yl)thiophen-2-yl]stannane, 5,5'-Bis(tributylstannyl)-2,2'-bithiophene 97%, 5,5′-BIS(TRIBUTYLSTANNYL)-2,2′-BITHOPHENE, MFCD01319063

5,5′-Bis(tributylstannyl)-2,2′-bithiophene (CAS 171290-94-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C32H58S2Sn2 and a molecular weight of 744.33500 g/mol. Key properties include a boiling point of 632.7±65.0℃(Predicted), a density of 1.217 g/mL at 25℃ and a flash point of >110℃. 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 Nov 3, 2026.

CAS No.
171290-94-1
Jingsj CID
J-1584856-3
Molecular Formula
C32H58S2Sn2
Molecular Weight
744.33500 g/mol
Category
Pharma Intermediates
Last updated
11/3/2026
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Physicochemical Properties

Boiling Point632.7±65.0℃(Predicted)
Density1.217 g/mL at 25℃
Flash Point>110℃
Exact Mass746.20200
LogP11.68440
Storage Conditions2-8℃

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H312 — Harmful in contact with skin
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H400 — Very toxic to aquatic life

Frequently Asked Questions

What is the CAS number of 5,5′-Bis(tributylstannyl)-2,2′-bithiophene?

The CAS number of 5,5′-Bis(tributylstannyl)-2,2′-bithiophene is 171290-94-1.

What are the molecular formula and molecular weight of 5,5′-Bis(tributylstannyl)-2,2′-bithiophene?

5,5′-Bis(tributylstannyl)-2,2′-bithiophene has molecular formula C32H58S2Sn2 and molecular weight 744.33500 g/mol.

Is 5,5′-Bis(tributylstannyl)-2,2′-bithiophene hazardous?

5,5′-Bis(tributylstannyl)-2,2′-bithiophene 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. "5,5′-Bis(tributylstannyl)-2,2′-bithiophene (CAS 171290-94-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1584856-3 (accessed 2026-11-09).

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