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4-(Dimethylamino)phenylboronic acid

Also known as: 4-(N,N-Dimethylamino)phenylboronic acid, 4-(Dimethylamino)benzeneboronic acid, p-(Dimethylamino)benzeneboronic acid, 4-(N,N-Dimethylamino)benzeneboronic acid, 4-Me2N(C6H4)B(OH)2, [4-(Dimethylamino)phenyl]boronic acid, p-dimethylaminophenylboronic acid

4-(Dimethylamino)phenylboronic acid (CAS 28611-39-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H12BNO2 and a molecular weight of 164.997 g/mol. Key properties include a melting point of 227 °C(lit.), a boiling point of 329.9±44.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 153.3±28.4 °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.
28611-39-4
Jingsj CID
J-22537-6
Molecular Formula
C8H12BNO2
Molecular Weight
164.997 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point227 °C(lit.)
Boiling Point329.9±44.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point153.3±28.4 °C
Exact Mass165.096115
PSA43.70000
LogP1.70
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.547

GHS Safety & Compliance

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

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 4-(Dimethylamino)phenylboronic acid?

The CAS number of 4-(Dimethylamino)phenylboronic acid is 28611-39-4.

What are the molecular formula and molecular weight of 4-(Dimethylamino)phenylboronic acid?

4-(Dimethylamino)phenylboronic acid has molecular formula C8H12BNO2 and molecular weight 164.997 g/mol.

Is 4-(Dimethylamino)phenylboronic acid hazardous?

4-(Dimethylamino)phenylboronic 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 4-(Dimethylamino)phenylboronic acid?

For 4-(Dimethylamino)phenylboronic acid, Upstream Products: 4-Bromo-N,N-dimethylaniline, Tributyl borate, Water; Downstream Products: 4-(6-Methoxybenzo[d]thiazol-2-yl)-N,N-dimethylaniline, N,N,N',N'-Tetramethylbenzidine, N,N-Dimethyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline.

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-(Dimethylamino)phenylboronic acid (CAS 28611-39-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-22537-6 (accessed 2026-11-09).

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