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Prazosin hydrochloride

Also known as: Prazosin HCl, Furazosin hydrochloride, Hypovase, Minipress, Deprazolin, Peripress, Pratsiol, Vasoflex, Adversuten, Alpress LP, CP 12299-1, Eurex, Sinetens, 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-(2-furanylcarbonyl)piperazine hydrochloride, [4-(4-Amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl](furan-2-yl)methanone hydrochloride

Prazosin hydrochloride (CAS 19237-84-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C19H22ClN5O4 and a molecular weight of 419.862 g/mol. Key properties include a melting point of 277 - 280 °C, a boiling point of 638.4ºC at 760 mmHg and a flash point of 339.9ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19237-84-4
Jingsj CID
J-36235-6
Molecular Formula
C19H22ClN5O4
Molecular Weight
419.862 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point277 - 280 °C
Boiling Point638.4ºC at 760 mmHg
Flash Point339.9ºC
Exact Mass419.136017
PSA107.68000
LogP2.51960
Vapor Pressure3.4E-16mmHg at 25°C
Storage ConditionsStore at RT
Additional PropertyH2O: 1 mg/mL, clear, colorless

GHS Safety & Compliance

Irritant / Health HazardSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H361 — Suspected of damaging fertility or the unborn child

Activity & Biological Data

Additional Information[1]. Day HE, et al. Distribution of alpha 1a-, alpha 1b- and alpha 1d-adrenergic receptor mRNA in the rat brain and spinal cord. J Chem Neuroanat. 1997 Jul;13(2):115-39. [2]. Yu CX, et al. Selective MT(2) melatonin receptor antagonist blocks melatonin-induced antinociception in rats. Neurosci Lett. 2000 Mar 24;282(3):161-4.

Frequently Asked Questions

What is the CAS number of Prazosin hydrochloride?

The CAS number of Prazosin hydrochloride is 19237-84-4.

What are the molecular formula and molecular weight of Prazosin hydrochloride?

Prazosin hydrochloride has molecular formula C19H22ClN5O4 and molecular weight 419.862 g/mol.

Is Prazosin hydrochloride hazardous?

Prazosin hydrochloride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.

What are the upstream and downstream products of Prazosin hydrochloride?

For Prazosin hydrochloride, Upstream Products: 2-Furoyl chloride, 3-Methyl-1-butanol, 6,7-dimethoxy-2-(piperazin-1-yl)quinazolin-4-amine; Downstream Products: Terazosin.

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

Last updated:

How to cite: Jingsj. "Prazosin hydrochloride (CAS 19237-84-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36235-6 (accessed 2026-11-09).

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