5-Hexyl-2,2'-bithiophene

Also known as: 5-hexyl-2,2'-dithiophene, 5-n-hexyl-2,2'-bithiophene, 2,2'-Bithiophene, 5-hexyl-, 2-hexyl-5-thiophen-2-ylthiophene

5-Hexyl-2,2'-bithiophene (CAS 173448-31-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H18S2 and a molecular weight of 250.423 g/mol. Key properties include a boiling point of 335.2±27.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 116.1±9.9 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H318 — Causes serious eye damage and H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 173448-31-2
Jingsj CID: J-44938-7
Molecular Formula: C₁₄H₁₈S₂
Molecular Weight: 250.423 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	335.2±27.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	116.1±9.9 °C
Exact Mass	250.084991
PSA	56.48000
LogP	6.70
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.565
Storage Conditions	2-8℃

GHS Safety & Compliance

Corrosion / Acute ToxicitySignal word: Danger

H301 — Toxic if swallowed
H318 — Causes serious eye damage
H413

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 5-Hexyl-2,2'-bithiophene?

The CAS number of 5-Hexyl-2,2'-bithiophene is 173448-31-2.

What are the molecular formula and molecular weight of 5-Hexyl-2,2'-bithiophene?

5-Hexyl-2,2'-bithiophene has molecular formula C14H18S2 and molecular weight 250.423 g/mol.

Is 5-Hexyl-2,2'-bithiophene hazardous?

5-Hexyl-2,2'-bithiophene has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H318 — Causes serious eye damage; H413.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Hexyl-2,2'-bithiophene (CAS 173448-31-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44938-7 (accessed 2026-11-09).

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