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2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one

Also known as: 2H-oxazolo[2,3-b]quinazolin-5(3H)-one, 2,3-dihydro-5H-[1,3]oxazolo[2,3-b]quinazolin-5-one, 2,3-dihydro-[1,3]oxazolo[2,3-b]quinazolin-5-one, MFCD00209576

2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one (CAS 52727-44-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C10H8N2O2 and a molecular weight of 188.18300 g/mol. Key properties include a melting point of 160-163ºC(lit.), a boiling point of 330ºC at 760 mmHg, a density of 1.47g/cm3 and a flash point of 153.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
52727-44-3
Jingsj CID
J-5833-3
Molecular Formula
C10H8N2O2
Molecular Weight
188.18300 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point160-163ºC(lit.)
Boiling Point330ºC at 760 mmHg
Density1.47g/cm3
Flash Point153.4ºC
Exact Mass188.05900
PSA44.12000
LogP0.78890
Refractive Index1.719

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 2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one?

The CAS number of 2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one is 52727-44-3.

What are the molecular formula and molecular weight of 2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one?

2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one has molecular formula C10H8N2O2 and molecular weight 188.18300 g/mol.

What are the upstream and downstream products of 2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one?

For 2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one, Upstream Products: methyl 2-(2-chloroethylcarbamoylamino)benzoate, 3-(2-chloroethyl)quinazoline-2,4(1H,3H)-dione, 2-Aminobenzonitrile; Downstream Products: 3-(2-chloroethyl)quinazoline-2,4(1H,3H)-dione, Ketanserin, 3-(2-bromoethyl)-1H-quinazoline-2,4-dione.

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

Last updated:

How to cite: Jingsj. "2,3-dihydro-5H-oxazolo[2,3-b]quinazolin-5-one (CAS 52727-44-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5833-3 (accessed 2026-11-09).

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