2-(9,9-Diphenyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

9,9-二苯基-9H-芴-4-基硼酸频哪醇酯

Also known as: 4-Pinacol ester-9,9-diphenylfluorene, 9,9-Diphenylfluorene-4-boronic acid pinacol ester, 9,9-Diphenyl-9H-fluoren-4-ylboronic acid pinacol ester, 4-Boronic acid pinacol ester-9,9-diphenylfluorene, 4-Picol ester-9,9-diphenylfluorene, 4-boric acid pinacol ester-9,9-diphenylfluorene, 9,9-diphenylfluorene-4-pinacol ester

2-(9,9-Diphenyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1259280-37-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C31H29BO2 and a molecular weight of 444.372 g/mol. It is also known as 4-Pinacol ester-9,9-diphenylfluorene, 9,9-Diphenylfluorene-4-boronic acid pinacol ester and 9,9-Diphenyl-9H-fluoren-4-ylboronic acid pinacol ester. Key properties include a melting point of 168.0 to 172.0 °C, a boiling point of 556.2±29.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 290.2±24.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1259280-37-9
Jingsj CID
J-1528223-3
Molecular Formula
C31H29BO2
Chinese Name
9,9-二苯基-9H-芴-4-基硼酸频哪醇酯
Molecular Weight
444.372 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point168.0 to 172.0 °C
Boiling Point556.2±29.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point290.2±24.3 °C

Frequently Asked Questions

What is the CAS number of 2-(9,9-Diphenyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?

The CAS number of 2-(9,9-Diphenyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is 1259280-37-9.

What are the molecular formula and molecular weight of 2-(9,9-Diphenyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane?

2-(9,9-Diphenyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane has molecular formula C31H29BO2 and molecular weight 444.372 g/mol.

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

Last updated:

How to cite: Jingsj. "2-(9,9-Diphenyl-9H-fluoren-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1259280-37-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1528223-3 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.