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1643452

USP

Terazosin hydrochloride

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

Terazosin hydrochloride dihydrate, 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonyl]piperazine hydrochloride dihydrate

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About This Item

Empirical Formula (Hill Notation):
C19H25N5O4 · HCl · 2H2O
CAS Number:
70024-40-7
Molecular Weight:
459.92
NACRES:
NA.24
PubChem Substance ID:
329751228
UNSPSC Code:
41116107
MDL number:
MFCD00941408
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grade

pharmaceutical primary standard

API family

terazosin

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

O.O.Cl.COc1cc2nc(nc(N)c2cc1OC)N3CCN(CC3)C(=O)C4CCCO4

InChI

1S/C19H25N5O4.ClH.2H2O/c1-26-15-10-12-13(11-16(15)27-2)21-19(22-17(12)20)24-7-5-23(6-8-24)18(25)14-4-3-9-28-14;;;/h10-11,14H,3-9H2,1-2H3,(H2,20,21,22);1H;2*1H2

InChI key

NZMOFYDMGFQZLS-UHFFFAOYSA-N

Gene Information

human ... ADRA1A(148), ADRA1B(147), ADRA1D(146)

General description

Terazosin hydrochloride is a quinazoline derivative. It is a alpha-1-selective adrenoceptor blocking agent. It has been used to treat hypertension, as it helps the blood vessels to relax, expand and improves blood flow.

Application

Terazosin hydrochloride USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Terazosin Capsules
  • Terazosin Tablets

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

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pictograms

Exclamation mark
GHS07

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Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

11 - Combustible Solids

flash_point_f

Not applicable

flash_point_c

Not applicable

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Potentiometric and fluorimetric methods for the determination of terazosin HCl in drug substance and dosage forms.
Ismail, Nahla S., and Taghreed A. Mohamed.
International Journal of Electrochemical Science, 9, 7394-7394 (2014)
Terazosin potentiometric sensor for quantitative analysis of terazosin hydrochloride in pharmaceutical formulation based on computational study.
Hosseini, Morteza, Ensieh Nasli-Esfahani, and Parviz Norouzi.
International Journal of Electrochemical Science, 5, 200-214 (2010)
Peter B Schwarz et al.
The Journal of physiology, 592(16), 3597-3609 (2014-05-27)
Noradrenergic neurotransmission in the brainstem is closely coupled to changes in muscle activity across the sleep-wake cycle, and noradrenaline is considered to be a key excitatory neuromodulator that reinforces the arousal-related stimulus on motoneurons to drive movement. However, it is

Global Trade Item Number

SKUGTIN
1643452-200MG04061833855478