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2-Formylfuran-5-boronic acid

Also known as: 5-Formyl-2-furylboronic acid, 5-Formylfuran-2-ylboronic acid, 5-Formyl-2-furanboronic acid, 5-Formyl-2-furanylboronic acid, (5-Formyl-2-furanyl)boronic acid, (5-Formyl-2-furyl)boronic acid, 5-formylfuran-2-boronic acid, 5-formylfuran-2-ylboronic acid, 2-Formylfuran-5-Boronic Acid, 2-Formylfuran-5-boronicacid, FFBA, MFCD01114696, RARECHEM AH PB 0213, TIMTEC-BB SBB004171, CHEMBRDG-BB 3200975, Boronic acid, B-(5-formyl-2-furanyl)-

2-Formylfuran-5-boronic acid (CAS 27329-70-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H5BO4 and a molecular weight of 139.902 g/mol. Key properties include a melting point of 136 °C (dec.)(lit.), a boiling point of 379.3±52.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 183.2±30.7 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
27329-70-0
Jingsj CID
J-44599-8
Molecular Formula
C5H5BO4
Molecular Weight
139.902 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point136 °C (dec.)(lit.)
Boiling Point379.3±52.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point183.2±30.7 °C
Exact Mass140.028091
PSA70.67000
LogP0.10
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.511
Storage Conditions0-6℃

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2942000000

Frequently Asked Questions

What is the CAS number of 2-Formylfuran-5-boronic acid?

The CAS number of 2-Formylfuran-5-boronic acid is 27329-70-0.

What are the molecular formula and molecular weight of 2-Formylfuran-5-boronic acid?

2-Formylfuran-5-boronic acid has molecular formula C5H5BO4 and molecular weight 139.902 g/mol.

Is 2-Formylfuran-5-boronic acid hazardous?

2-Formylfuran-5-boronic acid has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 2-Formylfuran-5-boronic acid?

For 2-Formylfuran-5-boronic acid, Upstream Products: 2-(Diethoxymethyl)furan, Trimethyl borate, 1,3-Dioxolane, 2-(2-furanyl)-; Downstream Products: Methyl 4-(5-formylfuran-2-yl)benzoate, 5-[2-chloro-4-(trifluoromethyl)phenyl]furan-2-carbaldehyde, 5-(4-Chlorophenyl)furan-2-carbaldehyde.

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

Last updated:

How to cite: Jingsj. "2-Formylfuran-5-boronic acid (CAS 27329-70-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44599-8 (accessed 2026-11-09).

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