anastrozole and its Impurities

Anastrozole was first approved for use in the United States in 1995.It is used in the treatment and prevention of breast cancer in women. Reference standards of Anastrozole API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

Displaying 48 results for anastrozole Impurities
Drug Reference Standards & Impurity Synthesis in India
PA 01 96000

Anastrozole

Anastrozole

  • Catalogue No.:PA 01 96000

  • CAS :

    120511-73-1

  • Molecular Formula : C17H19N5

  • Molecular Weight : 293.37

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96010

Anastrozole - Impurity A

α-Desmethyl Anastrozole

  • Catalogue No.:PA 01 96010

  • CAS :

    1215780-15-6

  • Molecular Formula : C16H17N5

  • Molecular Weight : 279.34

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96020

Anastrozole - Impurity B

Anastrozole Dimer Impurity

  • Catalogue No.:PA 01 96020

  • CAS :

    1216898-82-6

  • Molecular Formula : C30H31N9

  • Molecular Weight : 517.63

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96030

Anastrozole - Impurity C

2,2'-[5-(Bromomethyl)benzene-1,3-diyl]bis(2-methylpropanenitrile)

  • Catalogue No.:PA 01 96030

  • CAS :

    120511-84-4

  • Molecular Formula : C15H17BrN2

  • Molecular Weight : 305.21

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96040

Anastrozole - Impurity D

2,2'-[5-(Dibromomethyl)benzene-1,3-diyl]bis(2-methylpropanenitrile)

  • Catalogue No.:PA 01 96040

  • CAS :

    1027160-12-8

  • Molecular Formula : C15H16Br2N2

  • Molecular Weight : 384.11

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96050

Anastrozole - Impurity E

2,2'-[5-(Hydroxymethyl)benzene-1,3-diyl]bis(2-methylpropanenitrile)

  • Catalogue No.:PA 01 96050

  • CAS :

    120511-88-8

  • Molecular Formula : C15H18N2O

  • Molecular Weight : 242.32

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96060

Anastrozole - Impurity F

4-Methylbenzenesulfonic Acid

  • Catalogue No.:PA 01 96060

  • CAS :

    104-15-4

  • Molecular Formula : C7H8O3S

  • Molecular Weight : 172.2

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96070

Anastrozole - Impurity G

Isoanastrozole

  • Catalogue No.:PA 01 96070

  • CAS :

    120511-92-4

  • Molecular Formula : C17H19N5

  • Molecular Weight : 293.37

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96080

Anastrozole - Impurity H

2,2'-(5-Methylbenzene-1,3-diyl)bis(2-methylpropanenitrile)

  • Catalogue No.:PA 01 96080

  • CAS :

    120511-72-0

  • Molecular Formula : C15H18N2

  • Molecular Weight : 226.32

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96090

Anastrozole - Impurity I

2,2'-[5-(Chloromethyl)benzene-1,3-diyl]bis(2-methylpropanenitrile)

  • Catalogue No.:PA 01 96090

  • CAS :

    120511-91-3

  • Molecular Formula : C15H17ClN2

  • Molecular Weight : 260.76

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96510

Anastrozole Diamide Impurity

Anastrozole Diamide Impurity

  • Catalogue No.:PA 01 96510

  • CAS :

    120512-04-1

  • Molecular Formula : C17H23N5O2

  • Molecular Weight : 329.4

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96520

Anastrozole Diacid

Anastrozole Diacid

  • Catalogue No.:PA 01 96520

  • CAS :

    1338800-81-9

  • Molecular Formula : C17H21N3O4

  • Molecular Weight : 331.37

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96530

Anastrozole Mono Acid

Anastrozole Mono Acid

  • Catalogue No.:PA 01 96530

  • CAS :

    1338800-82-0

  • Molecular Formula : C17H20N4O2

  • Molecular Weight : 312.37

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96540

Anastrozole Monoamide

Anastrozole Monoamide

  • Catalogue No.:PA 01 96540

  • CAS :

    120512-03-0

  • Molecular Formula : C17H21N5O

  • Molecular Weight : 311.38

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96550

5-Methyl-1,3-benzenediacetonitrile

5-Methyl-1,3-benzenediacetonitrile

  • Catalogue No.:PA 01 96550

  • CAS :

    120511-74-2

  • Molecular Formula : C11H10N2

  • Molecular Weight : 170.21

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96560

Anastrozole Acid Amide

Anastrozole Acid Amide

  • Catalogue No.:PA 01 96560

  • CAS :

    2469244-33-3

  • Molecular Formula : C17H22N4O3

  • Molecular Weight : 330.38

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Drug Reference Standards & Impurity Synthesis in India
PA STI 007800

Anastrozole-d12

Anastrozole-d12

  • Catalogue No.:PA STI 007800

  • CAS :

    120512-32-5

  • Molecular Formula : C17H7D12N5

  • Molecular Weight : 305.44

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Drug Reference Standards & Impurity Synthesis in India
PA STI 007810

Anastrozole Mono Acid -d12

Anastrozole Mono Acid -d12

  • Catalogue No.:PA STI 007810

  • CAS :

    NA

  • Molecular Formula : C17H8D12N4O2

  • Molecular Weight : 324.44

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Drug Reference Standards & Impurity Synthesis in India
PA STI 007820

Anastrozole-d3 Dimer Impurity

Anastrozole-d3 Dimer Impurity

  • Catalogue No.:PA STI 007820

  • CAS :

    1329809-14-4

  • Molecular Formula : C30H28D3N9

  • Molecular Weight : 520.65

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Drug Reference Standards & Impurity Synthesis in India
PA STI 028010

α-Desmethyl Anastrozole-d3

α-Desmethyl Anastrozole-d3

  • Catalogue No.:PA STI 028010

  • CAS :

    1346601-01-1

  • Molecular Formula : C16H14D3N5

  • Molecular Weight : 282.36

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Drug Reference Standards & Impurity Synthesis in India
PA STI 081770

α,α,α',α'-(Tetramethyl-d12)-5-bromomethyl-1,3-benzenediacetonitrile

α,α,α',α'-(Tetramethyl-d12)-5-bromomethyl-1,3-benzenediacetonitrile

  • Catalogue No.:PA STI 081770

  • CAS :

    1185016-59-4

  • Molecular Formula : C15H5D12BrN2

  • Molecular Weight : 317.29

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Drug Reference Standards & Impurity Synthesis in India
PA STI 082390

α,α,α’,α’-Tetramethyl-5-methyl-1,3-benzenediacetonitrile-d12

α,α,α’,α’-Tetramethyl-5-methyl-1,3-benzenediacetonitrile-d12

  • Catalogue No.:PA STI 082390

  • CAS :

    1185098-75-2

  • Molecular Formula : C15H6D12N2

  • Molecular Weight : 238.4

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Drug Reference Standards & Impurity Synthesis in India
PA USP1034818

Anastrozole Related Compound A (2,2'-(5-methyl-1,3-phenylene)bis(2-methylpropanenitrile)) (1034818)

Anastrozole Related Compound A (2,2'-(5-methyl-1,3-phenylene)bis(2-methylpropanenitrile)) (1034818)

  • Catalogue No.:PA USP1034818

  • CAS :

    120511-72-0

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA USP1034807

Anastrozole (1034807)

Anastrozole (1034807)

  • Catalogue No.:PA USP1034807

  • CAS :

    120511-73-1

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0001522

Anastrozole (Y0001522)

Anastrozole (Y0001522)

  • Catalogue No.:PA EPY0001522

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA EPY0001531

Anastrozole impurity E (Y0001531)

Anastrozole impurity E (Y0001531)

  • Catalogue No.:PA EPY0001531

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96570

2,2'-(5-(di(1H-1,2,4-Triazol-1-yl)methyl)-1,3-phenylene)bis(2-methylpropanenitrile)

2,2'-(5-(di(1H-1,2,4-Triazol-1-yl)methyl)-1,3-phenylene)bis(2-methylpropanenitrile)

  • Catalogue No.:PA 01 96570

  • CAS :

    1186102-55-5

  • Molecular Formula : C19H20N8

  • Molecular Weight : 360.43

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96580

2,6-di-tert-Butyl-4-(2-hydroxyethyl)phenol

2,6-di-tert-Butyl-4-(2-hydroxyethyl)phenol

  • Catalogue No.:PA 01 96580

  • CAS :

    3673-68-5

  • Molecular Formula : C16H26O2

  • Molecular Weight : 250.38

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Drug Reference Standards & Impurity Synthesis in India
PA 01 96590

4-Aminoanastrozolium Bromide

4-Aminoanastrozolium Bromide

  • Catalogue No.:PA 01 96590

  • CAS :

    906813-01-2

  • Molecular Formula : C17H21BrN6

  • Molecular Weight : 389.29

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Drug Reference Standards & Impurity Synthesis in India
PA IPIPRS 119 12

Anastrozole (IPRS/119/12)-from IPC

Anastrozole (IPRS/119/12)-from IPC

  • Catalogue No.:PA IPIPRS 119 12

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961000

3,5-Bis(bromomethyl)toluene

3,5-Bis(bromomethyl)toluene

  • Catalogue No.:PA 01 0961000

  • CAS :

    19294-04-3 

  • Molecular Formula : C9H10Br2

  • Molecular Weight : 277.99

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961001

5-Formyl-α,α,α’,α’-tetramethyl-1,3-benzenediacetonitrile

Anastrozole Formyl Impurity

  • Catalogue No.:PA 01 0961001

  • CAS :

    120511-89-9

  • Molecular Formula : C15H16N2O

  • Molecular Weight : 240.31

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961002

5-Methylisophthalonitrile

5-Methylisophthalonitrile

  • Catalogue No.:PA 01 0961002

  • CAS :

    39718-07-5

  • Molecular Formula : C9H6N2

  • Molecular Weight : 142.16

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961003

2,2'-(5-Methyl-1,3-phenylene)dipropanenitrile

2,2'-(5-Methyl-1,3-phenylene)dipropanenitrile

  • Catalogue No.:PA 01 0961003

  • CAS :

    NA

  • Molecular Formula : C13H14N2

  • Molecular Weight : 198.27

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961004

2-(3-(Cyanomethyl)-5-methylphenyl)propanenitrile

2-(3-(Cyanomethyl)-5-methylphenyl)propanenitrile

  • Catalogue No.:PA 01 0961004

  • CAS :

    NA

  • Molecular Formula : C12H12N2

  • Molecular Weight : 184.24

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961005

3-(Bromomethyl)-α,α,5-trimethyl-benzeneacetonitrile

3-(Bromomethyl)-α,α,5-trimethyl-benzeneacetonitrile

  • Catalogue No.:PA 01 0961005

  • CAS :

    120512-36-9

  • Molecular Formula : C12H14BrN

  • Molecular Weight : 252.16

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961006

α,α,α',5-Tetramethyl-1,​3-​benzenediacetonitril​e

α,α,α',5-Tetramethyl-1,​3-​benzenediacetonitril​e

  • Catalogue No.:PA 01 0961006

  • CAS :

    120512-38-1

  • Molecular Formula : C14H16N2

  • Molecular Weight : 212.3

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961007

2-(3-(Bromomethyl)-5-methylphenyl)propanenitrile

2-(3-(Bromomethyl)-5-methylphenyl)propanenitrile

  • Catalogue No.:PA 01 0961007

  • CAS :

    NA

  • Molecular Formula : C11H12BrN

  • Molecular Weight : 238.13

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961008

2-(3-(Bromomethyl)-5-methylphenyl)acetonitrile

2-(3-(Bromomethyl)-5-methylphenyl)acetonitrile

  • Catalogue No.:PA 01 0961008

  • CAS :

    2384659-42-9

  • Molecular Formula : C10H10BrN

  • Molecular Weight : 224.1

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961009

Didestriazole anastrozole dimer impurity

Didestriazole anastrozole dimer impurity

  • Catalogue No.:PA 01 0961009

  • CAS :

    918312-71-7

  • Molecular Formula : C26H29N3

  • Molecular Weight : 383.54

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961010

2-(3-(Bromomethyl)-5-(1-cyanoethyl)phenyl)-2-methylpropanenitrile

2-(3-(Bromomethyl)-5-(1-cyanoethyl)phenyl)-2-methylpropanenitrile

  • Catalogue No.:PA 01 0961010

  • CAS :

    2518116-15-7

  • Molecular Formula : C14H15BrN2

  • Molecular Weight : 291.19

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961011

2-(3,4-Dimethylphenyl)propanenitrile

2-(3,4-Dimethylphenyl)propanenitrile

  • Catalogue No.:PA 01 0961011

  • CAS :

    105371-71-9

  • Molecular Formula : C11H13N

  • Molecular Weight : 159.23

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Drug Reference Standards & Impurity Synthesis in India
PA 01 3421000

4-Amino-1,2,4-triazole Hydrochloride

4-Amino-1,2,4-triazole Hydrochloride

  • Catalogue No.:PA 01 3421000

  • CAS :

    25545-88-4

  • Molecular Formula : C2H5ClN4

  • Molecular Weight : 120.54

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961012

4H-1,2,4-triazol-4-amine Sulfate

4H-1,2,4-triazol-4-amine Sulfate

  • Catalogue No.:PA 01 0961012

  • CAS :

    38104-46-0

  • Molecular Formula : C2H6N4O4S

  • Molecular Weight : 182.15

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961013

1,2,4-Triazol-4-amine Hydrobromide

1,2,4-Triazol-4-amine Hydrobromide

  • Catalogue No.:PA 01 0961013

  • CAS :

    746654-49-9

  • Molecular Formula : C2H5BrN4

  • Molecular Weight : 164.99

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Drug Reference Standards & Impurity Synthesis in India
PA 01 0961014

2,6-Di-tert-butyl-4-(chloromethyl)phenol

2,6-Di-tert-butyl-4-(chloromethyl)phenol

  • Catalogue No.:PA 01 0961014

  • CAS :

    955-01-1

  • Molecular Formula : C15H23ClO

  • Molecular Weight : 254.8

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Drug Reference Standards & Impurity Synthesis in India
PA IPRS 11 19

Anastrozole (IPRS/11/19)

Anastrozole (IPRS/11/19)

  • Catalogue No.:PA IPRS 11 19

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

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Drug Reference Standards & Impurity Synthesis in India
PA BSC 0960101112

p-Toluenesulfonic acid (BSC)

p-Toluenesulfonic acid (BSC)

  • Catalogue No.:PA BSC 0960101112

  • CAS :

    104-15-4 (BSC)

  • Molecular Formula : C7H8O3S

  • Molecular Weight : 172.2

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