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4-Formylphenylboronic acid

Also known as: 4-Formylbenzeneboronic acid, 4-Boronobenzaldehyde, 4-(Dihydroxyboryl)benzaldehyde, p-Formylphenylboronic acid, p-Formylbenzeneboronic acid, Boronic acid, B-(4-formylphenyl)-, Boronic acid, (4-formylphenyl)-, MFCD00151823, EINECS 438-670-5, RARECHEM AH PB 0193, TIMTEC-BB SBB004077, AKOS BRN-0111

4-Formylphenylboronic acid (CAS 87199-17-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H7BO3 and a molecular weight of 149.940 g/mol. Key properties include a melting point of 237-242 °C(lit.), a boiling point of 347.6±44.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 164.0±28.4 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
87199-17-5
Jingsj CID
J-28810-8
Molecular Formula
C7H7BO3
Molecular Weight
149.940 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point237-242 °C(lit.)
Boiling Point347.6±44.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point164.0±28.4 °C
Exact Mass150.048828
PSA57.53000
LogP1.01
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.548

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 4-Formylphenylboronic acid?

The CAS number of 4-Formylphenylboronic acid is 87199-17-5.

What are the molecular formula and molecular weight of 4-Formylphenylboronic acid?

4-Formylphenylboronic acid has molecular formula C7H7BO3 and molecular weight 149.940 g/mol.

Is 4-Formylphenylboronic acid hazardous?

4-Formylphenylboronic acid has GHS signal word Danger.

What are the upstream and downstream products of 4-Formylphenylboronic acid?

For 4-Formylphenylboronic acid, Upstream Products: 2-(4-Bromophenyl)-1,3-dioxane, 2-(4-Bromophenyl)-1,3-dioxolane, Triisopropyl borate; Downstream Products: 4-(1H-1,2,3-triazol-1-yl)benzaldehyde, 4'-Bromo-[1,1'-biphenyl]-4-carbaldehyde, 2'-Sulfamoyl-[1,1'-biphenyl]-4-carboxylic acid.

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-Formylphenylboronic acid (CAS 87199-17-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28810-8 (accessed 2026-11-09).

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