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(5-Formyl-2-methoxyphenyl)boronic acid

Also known as: 5-Formyl-2-methoxyphenylboronic acid, 2-Methoxy-5-formylphenylboronic acid, 5-Formyl-2-methoxybenzeneboronic acid, Boronic acid, B-(5-formyl-2-methoxyphenyl)-

(5-Formyl-2-methoxyphenyl)boronic acid (CAS 127972-02-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H9BO4 and a molecular weight of 179.966 g/mol. Key properties include a melting point of 154-157 °C(lit.), a boiling point of 417.4±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 206.2±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
127972-02-5
Jingsj CID
J-1526466-1
Molecular Formula
C8H9BO4
Molecular Weight
179.966 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point154-157 °C(lit.)
Boiling Point417.4±55.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point206.2±31.5 °C
Exact Mass180.059387
PSA66.76000
LogP1.07
Vapor Pressure0.0±1.0 mmHg at 25°C
Refractive Index1.537

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (5-Formyl-2-methoxyphenyl)boronic acid?

The CAS number of (5-Formyl-2-methoxyphenyl)boronic acid is 127972-02-5.

What are the molecular formula and molecular weight of (5-Formyl-2-methoxyphenyl)boronic acid?

(5-Formyl-2-methoxyphenyl)boronic acid has molecular formula C8H9BO4 and molecular weight 179.966 g/mol.

What are the upstream and downstream products of (5-Formyl-2-methoxyphenyl)boronic acid?

For (5-Formyl-2-methoxyphenyl)boronic acid, Upstream Products: 3-Bromo-4-methoxybenzaldehyde, 4-Methoxybenzaldehyde, Trimethyl borate.

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

Last updated:

How to cite: Jingsj. "(5-Formyl-2-methoxyphenyl)boronic acid (CAS 127972-02-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1526466-1 (accessed 2026-11-09).

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