6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime

Also known as: (E)-6,7-dihydrobenzo[b]thiophen-4(5H)-one oxime, (NE)-N-(6,7-dihydro-5H-1-benzothiophen-4-ylidene)hydroxylamine, 4-Oximino-4,5,6,7-tetrahydrothianaphthene, Benzo[b]thiophen-4(5H)-one, 6,7-dihydro-, oxime, N-(4,5,6,7-tetrahydro-1-benzothiophen-4-ylidene)hydroxylamine

6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime (CAS 19995-19-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9NOS and a molecular weight of 167.22800 g/mol. Key properties include a boiling point of 333.4ºC at 760mmHg, a density of 1.38g/cm3 and a flash point of 155.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19995-19-8
Jingsj CID: J-1031489-3
Molecular Formula: C₈H₉NOS
Molecular Weight: 167.22800 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	333.4ºC at 760mmHg
Density	1.38g/cm3
Flash Point	155.4ºC
Exact Mass	167.04000
PSA	60.83000
LogP	2.26270
Vapor Pressure	5.42E-05mmHg at 25°C
Refractive Index	1.688

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 6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime?

The CAS number of 6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime is 19995-19-8.

What are the molecular formula and molecular weight of 6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime?

6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime has molecular formula C8H9NOS and molecular weight 167.22800 g/mol.

What are the upstream and downstream products of 6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime?

For 6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime, 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-Tetrahydro-1-benzothiophen-4-amine, 5,6,7,8-Tetrahydro-4H-thieno[3,2-b]azepine, 1-benzothiophen-4-amine.

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. "6,7-Dihydrobenzo[b]thiophen-4(5H)-one oxime (CAS 19995-19-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1031489-3 (accessed 2026-11-09).

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