4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde

Also known as: 4-Formylphenylboronic acid neopentyl glycol cyclic ester, 4-Formylbenzeneboronic acid neopentyl glycol ester, 5,5-Dimethyl-2-(4-formylphenyl)-1,3,2-dioxaborinane, Benzaldehyde, 4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-, MFCD06796332

4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde (CAS 128376-65-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H15BO3 and a molecular weight of 218.057 g/mol. Key properties include a boiling point of 350.5±25.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 165.8±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 128376-65-8
Jingsj CID: J-1059401-1
Molecular Formula: C₁₂H₁₅BO₃
Molecular Weight: 218.057 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	350.5±25.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	165.8±23.2 °C
Exact Mass	218.111420
PSA	35.53000
LogP	1.26730
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.505

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 4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde?

The CAS number of 4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde is 128376-65-8.

What are the molecular formula and molecular weight of 4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde?

4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde has molecular formula C12H15BO3 and molecular weight 218.057 g/mol.

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. "4-(5,5-Dimethyl-1,3,2-dioxaborinan-2-yl)benzaldehyde (CAS 128376-65-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1059401-1 (accessed 2026-11-09).

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