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6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone

Also known as: 4(1H)-Pyrimidinone, 6-(1,1-dimethylethyl)-2,3-dihydro-2-thioxo-, 4-tert-butyl-2-thioxopyrimidin-6-one, 6-tert-Butyl-2-thiouracil, 6-tert-Butyl-2-thioxo-2,3-dihydropyrimidin-4(1H)-one, 6-tert-butyl-2-sulfanylpyrimidin-4-ol, 6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(H)-pyrimidinone

6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone (CAS 66698-66-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H12N2OS and a molecular weight of 184.25900 g/mol. Key properties include a melting point of 176-178ºC and a density of 1.19g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
66698-66-6
Jingsj CID
J-1113454-6
Molecular Formula
C8H12N2OS
Molecular Weight
184.25900 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point176-178ºC
Density1.19g/cm3
Exact Mass184.06700
PSA80.74000
LogP1.73000
Refractive Index1.58

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring in the structure. 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-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone?

The CAS number of 6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone is 66698-66-6.

What are the molecular formula and molecular weight of 6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone?

6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone has molecular formula C8H12N2OS and molecular weight 184.25900 g/mol.

What are the upstream and downstream products of 6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone?

For 6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone, Upstream Products: Methyl 4,4-dimethyl-3-oxopentanoate, Ethyl 4,4-dimethyl-3-oxovalerate.

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

Last updated:

How to cite: Jingsj. "6-(tert-Butyl)-2-thioxo-2,3-dihydro-4(1H)-pyrimidinone (CAS 66698-66-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1113454-6 (accessed 2026-11-09).

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