4,5,6,7-Tetrahydrobenzo[b]thiophene

Also known as: 4,5,6,7-Tetrahydro-1-benzothiophene, 4,5,6,7-tetrahydrobenzothiophene, Benzothiophene, 4,5,6,7-tetrahydro-, 4,5,6,7-Tetrahydro-benzo[b]thiophene, 4,5,6,7 tetrahydro thiaindene

4,5,6,7-Tetrahydrobenzo[b]thiophene (CAS 13129-17-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H10S and a molecular weight of 138.23000 g/mol. Key property: a density of 1.099±0.06 g/cm3(Predicted). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 13129-17-4
Jingsj CID: J-1495520-5
Molecular Formula: C₈H₁₀S
Molecular Weight: 138.23000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.099±0.06 g/cm3(Predicted)
Exact Mass	138.05000
PSA	28.24000
LogP	2.62690

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 4,5,6,7-Tetrahydrobenzo[b]thiophene?

The CAS number of 4,5,6,7-Tetrahydrobenzo[b]thiophene is 13129-17-4.

What are the molecular formula and molecular weight of 4,5,6,7-Tetrahydrobenzo[b]thiophene?

4,5,6,7-Tetrahydrobenzo[b]thiophene has molecular formula C8H10S and molecular weight 138.23000 g/mol.

What are the upstream and downstream products of 4,5,6,7-Tetrahydrobenzo[b]thiophene?

For 4,5,6,7-Tetrahydrobenzo[b]thiophene, Upstream Products: 6,7-Dihydro-1-benzothiophen-4(5H)-one, 4-(2-Thienyl)butyric acid, 4-Oxo-4-(2-thienyl)butyric acid; Downstream Products: 4,5,6,7-Tetrahydrobenzo[b]thiophene-2-carboxylic acid, Benzo[b]thiophene-2-carbonyl chloride, 4,5,6,7-tetrahydro- (9CI), 5,6-Dihydrobenzo[b]thiophen-7(4H)-one.

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. "4,5,6,7-Tetrahydrobenzo[b]thiophene (CAS 13129-17-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495520-5 (accessed 2026-11-09).

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