Naphthalene-2-boronic acid pinacol ester

Also known as: 2-Naphthaleneboronic acid, pinacol ester, 4,4,5,5-Tetramethyl-2-(2-naphthyl)-1,3,2-dioxaborolane, 4,4,5,5-Tetramethyl-2-(naphthalen-2-yl)-1,3,2-dioxaborolane, 2-(Naphth-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 2-Napthaleneboronic acid, pinacol ester, Naphthalene-2-boronic acid pinacol ester97%, BM181, MFCD05663868

Naphthalene-2-boronic acid pinacol ester (CAS 256652-04-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H19BO2 and a molecular weight of 254.13200 g/mol. Key properties include a melting point of 64.0 to 68.0 °C, a boiling point of 378.7ºC at 760mmHg, a density of 1.06g/cm3 and a flash point of 182.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 256652-04-7
Jingsj CID: J-1308584-2
Molecular Formula: C₁₆H₁₉BO₂
Molecular Weight: 254.13200 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	64.0 to 68.0 °C
Boiling Point	378.7ºC at 760mmHg
Density	1.06g/cm3
Flash Point	182.8ºC
Exact Mass	254.14800
PSA	18.46000
LogP	3.13900
Appearance	Solid
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.558
Storage Conditions	2-8°C
Additional Property	Slightly soluble in water.

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 Naphthalene-2-boronic acid pinacol ester?

The CAS number of Naphthalene-2-boronic acid pinacol ester is 256652-04-7.

What are the molecular formula and molecular weight of Naphthalene-2-boronic acid pinacol ester?

Naphthalene-2-boronic acid pinacol ester has molecular formula C16H19BO2 and molecular weight 254.13200 g/mol.

What are the upstream and downstream products of Naphthalene-2-boronic acid pinacol ester?

For Naphthalene-2-boronic acid pinacol ester, Upstream Products: 2-Iodonaphthalene, Pinacolborane, 2-Bromonaphthalene; Downstream Products: 2-Bromonaphthalene, Methyl 2-naphthoate, 2,2'-Binaphthalene.

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. "Naphthalene-2-boronic acid pinacol ester (CAS 256652-04-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1308584-2 (accessed 2026-11-09).

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