terazosin 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 API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 26 results for terazosin Impurities
Drug Reference Standards & Impurity Synthesis in India
PA STI 088226

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

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

  • Catalogue No.:PA STI 088226

  • CAS :

    2732980-69-5

  • Molecular Formula : C19H19D8N5O4

  • Molecular Weight : 397.50

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088227

[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl][(5S)-tetrahydro-5-methyl-2-furanyl]methanone-d8

[4-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-1-piperazinyl][(5S)-tetrahydro-5-methyl-2-furanyl]methanone-d8

  • Catalogue No.:PA STI 088227

  • CAS :

    2714488-83-0

  • Molecular Formula : C20H19D8N5O4

  • Molecular Weight : 409.51

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088228

1-(4-(4-Amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)-2-hydroxypentan-1-one

1-(4-(4-Amino-6,7-dimethoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)-2-hydroxypentan-1-one

  • Catalogue No.:PA STI 088228

  • CAS :

    2714408-48-5

  • Molecular Formula : C19H19D8N5O4

  • Molecular Weight : 397.50

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088229

(4-(4-Amino-6-hydroxy-7-methoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone

(4-(4-Amino-6-hydroxy-7-methoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone

  • Catalogue No.:PA STI 088229

  • CAS :

    2714485-00-2

  • Molecular Formula : C18H15D8N5O4

  • Molecular Weight : 381.46

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088230

(4-(4-Amino-7-hydroxy-6-methoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone

(4-(4-Amino-7-hydroxy-6-methoxyquinazolin-2-yl)piperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone

  • Catalogue No.:PA STI 088230

  • CAS :

    2714430-62-1

  • Molecular Formula : C18H15D8N5O4

  • Molecular Weight : 381.46

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Drug Reference Standards & Impurity Synthesis in India
PA IPIMP 005 13

6,7-dimethoxy-2-(piperazin-1-yl) quinazolin-4- amine (Terazosin Impurity C) (IMP/005/13)

6,7-dimethoxy-2-(piperazin-1-yl) quinazolin-4- amine (Terazosin Impurity C) (IMP/005/13)

  • Catalogue No.:PA IPIMP 005 13

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA IPIMP 006 13

2-chloro-6,7-dimethoxyquinazolin-4-amine (Terazosin Impurity A) (IMP/006/13)

2-chloro-6,7-dimethoxyquinazolin-4-amine (Terazosin Impurity A) (IMP/006/13)

  • Catalogue No.:PA IPIMP 006 13

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 130 12

Terazosin Hydrochloride (IPRS/130/12)-from IPC

Terazosin Hydrochloride (IPRS/130/12)-from IPC

  • Catalogue No.:PA IPIPRS 130 12

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0000621

Terazosin hydrochloride dihydrate (Y0000621)

Terazosin hydrochloride dihydrate (Y0000621)

  • Catalogue No.:PA EPY0000621

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0000624

Terazosin impurity N (Y0000624)

Terazosin impurity N (Y0000624)

  • Catalogue No.:PA EPY0000624

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0000665

Terazosin impurity E (Y0000665)

Terazosin impurity E (Y0000665)

  • Catalogue No.:PA EPY0000665

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1643452

Terazosin Hydrochloride (1643452)

Terazosin Hydrochloride (1643452)

  • Catalogue No.:PA USP1643452

  • CAS :

    70024-40-7

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1643463

Terazosin Related Compound A (1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)piperazine dihydrochloride) (1643463)

Terazosin Related Compound A (1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)piperazine dihydrochloride) (1643463)

  • Catalogue No.:PA USP1643463

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1643474

Terazosin Related Compound B (1-(4-hydroxy-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)c (1643474)

Terazosin Related Compound B (1-(4-hydroxy-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)c (1643474)

  • Catalogue No.:PA USP1643474

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1643485

Terazosin Related Compound C (1,4-bis(4-amino-6,7-dimethoxy-2-quinazolinyl)piperazine dihydrochlori (1643485)

Terazosin Related Compound C (1,4-bis(4-amino-6,7-dimethoxy-2-quinazolinyl)piperazine dihydrochlori (1643485)

  • Catalogue No.:PA USP1643485

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA STI 088231

Terazosin-d8

  • Catalogue No.:PA STI 088231

  • CAS :

    1006718-20-2

  • Molecular Formula : C19H17D8N5O4

  • Molecular Weight : 395.49

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0111001

4-Amino-6,7-dimethoxyquinazolin-2(1H)-one Hydrochloride

4-Amino-6,7-dimethoxyquinazolin-2(1H)-one Hydrochloride

  • Catalogue No.:PA 20 0111001

  • CAS :

    134749-43-2

  • Molecular Formula : C10H12ClN3O3

  • Molecular Weight : 257.67

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Drug Reference Standards & Impurity Synthesis in India
PA 20 3060000

Terazosin

Terazosin

  • Catalogue No.:PA 20 3060000

  • CAS :

    63590-64-7

  • Molecular Formula : C19H25N5O4

  • Molecular Weight : 387.44

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Drug Reference Standards & Impurity Synthesis in India
PAI 20 306002

2-Hydroxy-1-(piperazin-1-yl)pentan-1-one

2-Hydroxy-1-(piperazin-1-yl)pentan-1-one

  • Catalogue No.:PAI 20 306002

  • CAS :

    1537852-27-9

  • Molecular Formula : C9H18N2O2

  • Molecular Weight : 186.26

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Drug Reference Standards & Impurity Synthesis in India
PAI 20 306001

Tert-butyl 4-(2-hydroxypentanoyl)piperazine-1-carboxylate

Tert-butyl 4-(2-hydroxypentanoyl)piperazine-1-carboxylate

  • Catalogue No.:PAI 20 306001

  • CAS :

    NA

  • Molecular Formula : C14H26N2O4

  • Molecular Weight : 286.37

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Drug Reference Standards & Impurity Synthesis in India
PA 20 0111000

N'-Methyl-N,N-diphenylurea

N'-Methyl-N,N-diphenylurea

  • Catalogue No.:PA 20 0111000

  • CAS :

    13114-72-2

  • Molecular Formula : C14H14N2O

  • Molecular Weight : 226.28

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Drug Reference Standards & Impurity Synthesis in India
PAI 20 306003

2-Hydroxypentanoyl Chloride

2-Hydroxypentanoyl Chloride

  • Catalogue No.:PAI 20 306003

  • CAS :

    NA

  • Molecular Formula : C5H9ClO2

  • Molecular Weight : 136.58

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Drug Reference Standards & Impurity Synthesis in India
PA 20 3061000

(4-Nitrosopiperazin-1-yl)(tetrahydrofuran-2-yl)methanone

(4-Nitrosopiperazin-1-yl)(tetrahydrofuran-2-yl)methanone

  • Catalogue No.:PA 20 3061000

  • CAS :

    2470438-57-2

  • Molecular Formula : C9H15N3O3

  • Molecular Weight : 213.24

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0002286

Terazosin for system suitability A (Y0002286)

Terazosin for system suitability A (Y0002286)

  • Catalogue No.:PA EPY0002286

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA STI 089737

(4-Nitrosopiperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone

(4-Nitrosopiperazin-1-yl-2,2,3,3,5,5,6,6-d8)(tetrahydrofuran-2-yl)methanone

  • Catalogue No.:PA STI 089737

  • CAS :

    NA

  • Molecular Formula : C9H7D8N3O3

  • Molecular Weight : 221.29

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Drug Reference Standards & Impurity Synthesis in India
PA STI 089987

6,7-Dimethoxy-2-(4-nitrosopiperazin-1-yl-2,2,3,3,5,5,6,6-d8)quinazolin-4-amine

6,7-Dimethoxy-2-(4-nitrosopiperazin-1-yl-2,2,3,3,5,5,6,6-d8)quinazolin-4-amine

  • Catalogue No.:PA STI 089987

  • CAS :

    NA

  • Molecular Formula : C14H10D8N6O3

  • Molecular Weight : 326.39

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