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(6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one

Also known as: 4H-Thieno[2,3-b]thiopyran-4-one,5,6-dihydro-6-methyl-, (6S)-, (6S)-6-Methyl-5,6-dihydrothieno[2,3-b]thiopyran-4-one, Dorzolamide Impurity 40, Intermediate Of Dorzolamide

(6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one (CAS 147086-79-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8OS2 and a molecular weight of 184.27900 g/mol. Key properties include a boiling point of 307.5ºC at 760 mmHg and a density of 1.3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
147086-79-1
Jingsj CID
J-1121600-5
Molecular Formula
C8H8OS2
Molecular Weight
184.27900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point307.5ºC at 760 mmHg
Density1.3
Exact Mass184.00200
PSA70.61000
LogP2.81510
Vapor Pressure0.000722mmHg at 25°C
Refractive Index1.62

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 (6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one?

The CAS number of (6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one is 147086-79-1.

What are the molecular formula and molecular weight of (6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one?

(6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one has molecular formula C8H8OS2 and molecular weight 184.27900 g/mol.

What are the upstream and downstream products of (6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one?

For (6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one, Upstream Products: (3S)-3-(2-thienylthio)butanoic acid, Methyl (3S)-3-(thiophen-2-ylthio)butanoate; Downstream Products: (4R,6S)-6-Methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-ol, Dorzolamide, N-[(4S,6S)-6-methyl-7,7-dioxo-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl]acetamide.

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

Last updated:

How to cite: Jingsj. "(6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one (CAS 147086-79-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1121600-5 (accessed 2026-11-09).

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