Phentolamine

酚妥拉明

Also known as: 3-[(4,5-Dihydro-1H-imidazol-2-ylmethyl)(4-methylphenyl)amino]phenol, 3-[N-(4,5-dihydro-1H-imidazol-2-ylmethyl)-4-methylanilino]phenol, 2-[N-(m-Hydroxyphenyl)-p-toluidinomethyl]imidazoline, Regitine, Regitin, Rogitine, Dibasin, Fentolamin, Fentolamina, Phentolaminum, m-[N-[2-Imidazolin-2-ylmethyl]-p-toluidino]phenol

Phentolamine (CAS 50-60-2) is a compound in the Alcohols category listed in the Jingsj chemical database. It has the molecular formula C17H19N3O and a molecular weight of 281.352 g/mol. It is also known as 3-[(4,5-Dihydro-1H-imidazol-2-ylmethyl)(4-methylphenyl)amino]phenol, 3-[N-(4,5-dihydro-1H-imidazol-2-ylmethyl)-4-methylanilino]phenol and 2-[N-(m-Hydroxyphenyl)-p-toluidinomethyl]imidazoline. Key properties include a melting point of 177 - 178ºC, a boiling point of 551.0±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 287.0±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 50-60-2
Jingsj CID: J-189-8
Molecular Formula: C₁₇H₁₉N₃O
Chinese Name: 酚妥拉明
Molecular Weight: 281.352 g/mol
Category: Alcohols
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	177 - 178ºC
Boiling Point	551.0±45.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	287.0±28.7 °C

Frequently Asked Questions

What is the CAS number of Phentolamine?

The CAS number of Phentolamine is 50-60-2.

What are the molecular formula and molecular weight of Phentolamine?

Phentolamine has molecular formula C17H19N3O and molecular weight 281.352 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Phentolamine (CAS 50-60-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-189-8 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.