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1H-Indol-5-ylboronic acid

Also known as: 5-Indolylboronic acid, Indole-5-boronic acid, 5-Indoleboronic acid, 5-Indoylboronic acid, 5-Borono-1H-indole, AKOS BRN-0120, MFCD01319013

1H-Indol-5-ylboronic acid (CAS 144104-59-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H8BNO2 and a molecular weight of 160.966 g/mol. Key properties include a melting point of 170-175 °C, a boiling point of 433.2±37.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 215.8±26.5 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
144104-59-6
Jingsj CID
J-29532-9
Molecular Formula
C8H8BNO2
Molecular Weight
160.966 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point170-175 °C
Boiling Point433.2±37.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point215.8±26.5 °C
Exact Mass161.064804
PSA56.25000
LogP1.51
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.662

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 1H-Indol-5-ylboronic acid?

The CAS number of 1H-Indol-5-ylboronic acid is 144104-59-6.

What are the molecular formula and molecular weight of 1H-Indol-5-ylboronic acid?

1H-Indol-5-ylboronic acid has molecular formula C8H8BNO2 and molecular weight 160.966 g/mol.

Is 1H-Indol-5-ylboronic acid hazardous?

1H-Indol-5-ylboronic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1H-Indol-5-ylboronic acid?

For 1H-Indol-5-ylboronic acid, Upstream Products: 5-Bromoindole, Tributyl borate; Downstream Products: 5-(Furan-3-yl)-1H-indole, 5-(4-fluorophenyl)-1H-indole, 5-(2-Thienyl)-1H-indole.

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

Last updated:

How to cite: Jingsj. "1H-Indol-5-ylboronic acid (CAS 144104-59-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29532-9 (accessed 2026-11-09).

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