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4-Isoquinolineboronic acid pinacol ester

Also known as: 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)isoquinoline, Isoquinoline-4-boronic acid pinacol ester, 2-(4-Isoquinolyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolane-2-yl)isoquinoline

4-Isoquinolineboronic acid pinacol ester (CAS 685103-98-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C15H18BNO2 and a molecular weight of 255.120 g/mol. Key properties include a melting point of 98-102 °C(lit.), a boiling point of 397.5±15.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 194.2±20.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
685103-98-4
Jingsj CID
J-36720-4
Molecular Formula
C15H18BNO2
Molecular Weight
255.120 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point98-102 °C(lit.)
Boiling Point397.5±15.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point194.2±20.4 °C
Exact Mass255.143066
PSA31.35000
LogP2.53400
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.559

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 4-Isoquinolineboronic acid pinacol ester?

The CAS number of 4-Isoquinolineboronic acid pinacol ester is 685103-98-4.

What are the molecular formula and molecular weight of 4-Isoquinolineboronic acid pinacol ester?

4-Isoquinolineboronic acid pinacol ester has molecular formula C15H18BNO2 and molecular weight 255.120 g/mol.

What are the upstream and downstream products of 4-Isoquinolineboronic acid pinacol ester?

For 4-Isoquinolineboronic acid pinacol ester, Downstream Products: 4-Iodoisoquinoline, 4-Methylisoquinoline.

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

Last updated:

How to cite: Jingsj. "4-Isoquinolineboronic acid pinacol ester (CAS 685103-98-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36720-4 (accessed 2026-11-09).

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