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2,2':5',2''-Terthiophene-5-carboxaldehyde

Also known as: 2,2':5',2''-Terthiophene-5-carbaldehyde, 5-Formyl-2,2':5',2''-terthiophene, 5-[5-(2-Thienyl)-2-thienyl]thiophene-2-carbaldehyde, 2,2':5',2''-Terthienyl-5-carboxaldehyde

2,2':5',2''-Terthiophene-5-carboxaldehyde (CAS 7342-41-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H8OS3 and a molecular weight of 276.39700 g/mol. Key properties include a melting point of 133ºC, a boiling point of 435.1ºC at 760 mmHg, a density of 1.381g/cm3 and a flash point of 216.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7342-41-8
Jingsj CID
J-45144-5
Molecular Formula
C13H8OS3
Molecular Weight
276.39700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point133ºC
Boiling Point435.1ºC at 760 mmHg
Density1.381g/cm3
Flash Point216.9ºC
Exact Mass275.97400
PSA101.79000
LogP5.01760
Refractive Index1.7

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 2,2':5',2''-Terthiophene-5-carboxaldehyde?

The CAS number of 2,2':5',2''-Terthiophene-5-carboxaldehyde is 7342-41-8.

What are the molecular formula and molecular weight of 2,2':5',2''-Terthiophene-5-carboxaldehyde?

2,2':5',2''-Terthiophene-5-carboxaldehyde has molecular formula C13H8OS3 and molecular weight 276.39700 g/mol.

What are the upstream and downstream products of 2,2':5',2''-Terthiophene-5-carboxaldehyde?

For 2,2':5',2''-Terthiophene-5-carboxaldehyde, Upstream Products: 2,2':5',2''-Terthiophene, N,N-Dimethylformamide, 5-Bromothiophene-2-carbaldehyde; Downstream Products: 5-Bromo-5''-formyl-2,2':5',2''-terthiophene, α-Septithiophene.

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

Last updated:

How to cite: Jingsj. "2,2':5',2''-Terthiophene-5-carboxaldehyde (CAS 7342-41-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45144-5 (accessed 2026-11-09).

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