CAS 109678-71-9

Terazosin EP Impurity F

CAS: 109678-71-9

Formula: C₁₉H₂₇N₅O₄

Color and Shape: White To Off-White Solid

Molecular weight: 389.46

Ref: 4Z-T-756

1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone Hydrochloride

Controlled Product

CAS: 109678-71-9

Impurity Terazosin EP Impurity F
Applications 1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone Hydrochloride is an impurity (1) of Terazosin (T105000), an α-1-adrenergic blocker (2) that is related to Prazosin (P702325).
References 1. Patterson, E. et al.: J. Chromatogr. 1984 Nov 9;311(1):206-12.2. Fort F. et al.: Drug Chem. Toxicol. 1984;7(5):435-49.

Formula: C₁₉H₂₈ClN₅O₄

Color and Shape: Neat

Molecular weight: 425.91

Ref: TR-A605020

1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone-d8

Controlled Product

CAS: 109678-71-9

Applications Isotope labelled 1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone is an impurity of Terazosin (T105000), an α-1-adrenergic blocker that is related to Prazosin (P702325).
References Patterson, S.E., et al.: J. Chromatog., 311, 206 (1984), Fort, F.L., et al.: Drug Chem. Toxicol., 7, 435 (1984), Lepor, H., et al.: J. Urol., 148, 1467 (1992),

Formula: C₁₉D₈H₁₉N₅O₄

Color and Shape: Neat

Molecular weight: 397.498

Ref: TR-A605022

1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone

CAS: 109678-71-9

1-[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl]-5-hydroxy-1-pentanone is a drug product that is used as an HPLC standard. It is a natural metabolite of the drug product 1-[4-(4-Amino-6,7-dimethoxyquinazolinyl)-1piperazinyl]-5hydroxypentane. The synthesis of this compound has been reported in the literature.
The impurity content of this compound meets the pharmacopoeia requirements for an analytical reference standard for API impurities.

Formula: C₁₉H₂₇N₅O₄

Purity: Min. 95%

Molecular weight: 389.45 g/mol

Ref: 3D-IA63845

Terazosin EP Impurity F

CAS: 109678-71-9

Formula: C₁₉H₂₇N₅O₄

Molecular weight: 389.5

Ref: ST-EA-CP-T17006