6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one

Also known as: 3-oxo-2H,4H-benzo[b][1,4]oxazine-6-boronic acid pinacol ester, 3-oxo-3,4-dihydro-2H-1,4-benzoxazine-6-boronic acid pinacol ester, 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4H-1,4-benzoxazin-3-one, 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-1,4-benzoxazin-3(4H)-one, 6-(tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydro-2H-1,4-benzoxazin-3-one, 3-hydroxy-2,3-dimethylbutan-2-yl hydrogen (3-oxo-3,4-dihydro-2H-benzo[b][1,4]oxazin-6-yl)boronate

6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 943994-02-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H18BNO4 and a molecular weight of 275.108 g/mol. Key properties include a boiling point of 441.1±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 220.6±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 943994-02-3
Jingsj CID: J-1428801-8
Molecular Formula: C₁₄H₁₈BNO₄
Molecular Weight: 275.108 g/mol
Category: Organic Acids
Last updated: 8/21/2026

Request MSDS / TDS

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point	441.1±45.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	220.6±28.7 °C
Exact Mass	275.132904
PSA	56.79000
LogP	1.45470
Vapor Pressure	0.0±1.1 mmHg at 25°C
Refractive Index	1.543
Storage Conditions	2-8°C

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-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one?

The CAS number of 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one is 943994-02-3.

What are the molecular formula and molecular weight of 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one?

6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one has molecular formula C14H18BNO4 and molecular weight 275.108 g/mol.

What are the upstream and downstream products of 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one?

For 6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one, Upstream Products: 6-Bromo-2H-1,4-benzoxazin-3(4H)-one, Bis(pinacolato)diboron.

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-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2H-benzo[b][1,4]oxazin-3(4H)-one (CAS 943994-02-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1428801-8 (accessed 2026-11-09).

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