terazosin hydrochloride dihydrate and its Impurities

A quinazoline derivative which is an alpha-1-selective adrenoceptor blocking agent used on once-a-day basis for therapy of mild-to-moderate hypertension. Terazosin is indicated for the treatment of symptomatic benign prostatic hyperplasia (BPH). Reference standards of Terazosin Hydrochloride Dihydrate API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 19 results for terazosin hydrochloride dihydrate Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 20 11000

Terazosin Hydrochloride Dihydrate

Terazosin Hydrochloride Dihydrate

  • Catalogue No.:PA 20 11000

  • CAS :

    70024-40-7

  • Molecular Formula : C19H30ClN5O6

  • Molecular Weight : 459.92

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11010

Terazosin Hydrochloride Dihydrate - Impurity A

2-Chloro-6,7-dimethoxyquinazolin-4-amine

  • Catalogue No.:PA 20 11010

  • CAS :

    23680-84-4

  • Molecular Formula : C10H10ClN3O2

  • Molecular Weight : 239.66

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11020

Terazosin Hydrochloride Dihydrate - Impurity B

1-(4-Hydroxy-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine

  • Catalogue No.:PA 20 11020

  • CAS :

    1177261-73-2

  • Molecular Formula : C19H24N4O5

  • Molecular Weight : 388.42

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11030

Terazosin Hydrochloride Dihydrate - Impurity C

6,7-Dimethoxy-2-(piperazin- 1-yl)quinazolin-4-amine

  • Catalogue No.:PA 20 11030

  • CAS :

    60547-97-9

  • Molecular Formula : C14H19N5O2

  • Molecular Weight : 289.33

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11040

Terazosin Hydrochloride Dihydrate - Impurity D (Hydrochloride Salt)

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-formylpiperazine Hydrochloride

  • Catalogue No.:PA 20 11040

  • CAS :

    84050-21-5

  • Molecular Formula : C15H20ClN5O3

  • Molecular Weight : 353.8

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11050

Terazosin Hydrochloride Dihydrate - Impurity E

2,2′-(Piperazine-1,4-diyl)bis(6,7-dimethoxyquinazolin-4-amine)

  • Catalogue No.:PA 20 11050

  • CAS :

    102839-00-9

  • Molecular Formula : C24H28N8O4

  • Molecular Weight : 492.53

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11100

Terazosin Hydrochloride Dihydrate - Impurity J

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[(2RS)-2-hydroxypentanoyl]piperazine

Drug Reference Standards & Impurity Synthesis in India

  • Catalogue No.:PA 20 11100

  • CAS :

    152551-75-2

  • Molecular Formula : C19H27N5O4

  • Molecular Weight : 389.21

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11110

Terazosin - Impurity K

Prazosin Hydrochloride

  • Catalogue No.:PA 20 11110

  • CAS :

    19237-84-4

  • Molecular Formula : C19H22ClN5O4

  • Molecular Weight : 419.86

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11120

Terazosin Hydrochloride Dihydrate - Impurity L

1-(Furan-2-ylcarbonyl)piperazine

  • Catalogue No.:PA 20 11120

  • CAS :

    40172-95-0

  • Molecular Formula : C9H12N2O2

  • Molecular Weight : 180.2

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11130

Terazosin Hydrochloride Dihydrate - Impurity M

1,4-Bis(furan-2-ylcarbonyl)piperazine

  • Catalogue No.:PA 20 11130

  • CAS :

    31350-27-3

  • Molecular Formula : C14H14N2O4

  • Molecular Weight : 274.27

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11140

Terazosin Hydrochloride Dihydrate - Impurity N

1-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine

  • Catalogue No.:PA 20 11140

  • CAS :

    63074-07-7

  • Molecular Formula : C9H16N2O2

  • Molecular Weight : 184.24

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11150

Terazosin Hydrochloride Dihydrate - Impurity O

1,4-Bis[(tetrahydrofuran-2-yl)carbonyl]piperazine

  • Catalogue No.:PA 20 11150

  • CAS :

    547730-06-3

  • Molecular Formula : C14H22N2O4

  • Molecular Weight : 282.34

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11510

Terazosin Hydrochloride Dihydrate - Impurity I

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS,5S)-5-methyltetrahydrofuran-2-yl]carbonyl]piperazine

  • Catalogue No.:PA 20 11510

  • CAS :

    1177261-85-6

  • Molecular Formula : C20H27N5O4

  • Molecular Weight : 401.46

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11520

Terazosin Hydrochloride Dihydrate - Impurity G

1-(4-Amino-6-hydroxy-7-methoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine

  • Catalogue No.:PA 20 11520

  • CAS :

    105356-89-6

  • Molecular Formula : C18H23N5O4

  • Molecular Weight : 373.41

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Drug Reference Standards & Impurity Synthesis in India
PA 20 11530

Terazosin Hydrochloride Dihydrate - Impurity H

1-(4-Amino-7-hydroxy-6-methoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine

  • Catalogue No.:PA 20 11530

  • CAS :

    105356-90-9

  • Molecular Formula : C18H23N5O4

  • Molecular Weight : 373.41

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0110060

Terazosin Hydrochloride Dihydrate - Impurity F

1-(4-amino-6,7-dimethoxyquinazolin-2-yl)-4-(5-hydroxypentanoyl)piperazine,

  • Catalogue No.:PA 20 0110060

  • CAS :

    109678-71-9

  • Molecular Formula : C19H27N5O4

  • Molecular Weight : 389.46

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0110041

Terazosin Hydrochloride Dihydrate - Impurity D

1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-formylpiperazine

  • Catalogue No.:PA 20 0110041

  • CAS :

    102714-74-9

  • Molecular Formula : C15H19N5O3

  • Molecular Weight : 317.35

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0110160

Terazosin Hydrochloride Dihydrate - Impurity P

1-[4-(4-Amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl]pentane-1,2-dione

  • Catalogue No.:PA 20 0110160

  • CAS :

    2470437-02-4

  • Molecular Formula : C19H25N5O4

  • Molecular Weight : 387.44

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0110121

Terazosin Hydrochloride Dihydrate - Impurity L (Hydrochloride Salt)

1-(Furan-2-ylcarbonyl)piperazine Hydrochloride

  • Catalogue No.:PA 20 0110121

  • CAS :

    60548-09-6

  • Molecular Formula : C9H13ClN2O2

  • Molecular Weight : 216.67

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