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Bis(neopentyl glycolato)diboron

Also known as: 5,5,5',5'-Tetramethyl-2,2'-bi(1,3,2-dioxaborinane), Bis(2,2-dimethyl-1,3-propanediolato)diboron, 2,2'-Bi-1,3,2-dioxaborinane, 5,5,5',5'-tetramethyl-, 2-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)-5,5-dimethyl-1,3,2-dioxaborinane, bis(neopentanediolato)diboron

Bis(neopentyl glycolato)diboron (CAS 201733-56-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H20B2O4 and a molecular weight of 225.885 g/mol. Key properties include a melting point of 180.5-184.5 °C(lit.), a boiling point of 214.3±7.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 83.4±18.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
201733-56-4
Jingsj CID
J-42703-2
Molecular Formula
C10H20B2O4
Molecular Weight
225.885 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point180.5-184.5 °C(lit.)
Boiling Point214.3±7.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point83.4±18.2 °C
Exact Mass226.154770
PSA36.92000
LogP1.18720
Vapor Pressure0.2±0.4 mmHg at 25°C
Refractive Index1.427

Frequently Asked Questions

What is the CAS number of Bis(neopentyl glycolato)diboron?

The CAS number of Bis(neopentyl glycolato)diboron is 201733-56-4.

What are the molecular formula and molecular weight of Bis(neopentyl glycolato)diboron?

Bis(neopentyl glycolato)diboron has molecular formula C10H20B2O4 and molecular weight 225.885 g/mol.

What are the upstream and downstream products of Bis(neopentyl glycolato)diboron?

For Bis(neopentyl glycolato)diboron, Upstream Products: Neopentyl glycol, Tetrahydroxydiboron, Tetrakis(dimethylamino)diboron; Downstream Products: (4-Amino-3-fluorophenyl)boronic acid, 2-(2-Fluorophenyl)-5,5-dimethyl-1,3,2-dioxaborinane, 5,5-dimethyl-2-(p-tolyl)-1,3,2-dioxaborinane.

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

Last updated:

How to cite: Jingsj. "Bis(neopentyl glycolato)diboron (CAS 201733-56-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42703-2 (accessed 2026-11-09).

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