Letrozole-impurities | Pharmaffiliates

letrozole

Letrozole is also used to help prevent the cancer from returning. Some breast cancers are made to grow faster by a natural hormone called estrogen. It is sold under the brand name Femara. Reference standards of Letrozole API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.

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    [pname] => Letrozole - Impurity A
    [catalogue_number] => PA 12 53010
    [category_ids] => ,80,75,71,78,70,82,
    [chemical_name] => 
    [weight] => 285.30
    [form] => C17H11N5
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PA 12 53010

Letrozole - Impurity A


  • Catalogue No.:PA 12 53010

  • CAS :

    112809-52-6

  • Molecular Formula : C17H11N5

  • Molecular Weight : 285.30

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stdClass Object
(
    [pname] => Letrozole - Impurity B
    [catalogue_number] => PA 12 53020
    [category_ids] => ,80,75,71,78,70,82,
    [chemical_name] => 
    [weight] => 319.36
    [form] => C22H13N3
    [cas] => 113402-31-6
    [pslug] => 113402-31-6-letrozole-impurity-b-pa1253020
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PA 12 53020

Letrozole - Impurity B


  • Catalogue No.:PA 12 53020

  • CAS :

    113402-31-6

  • Molecular Formula : C22H13N3

  • Molecular Weight : 319.36

stdClass Object
(
    [pname] => 4-(4-Cyanobenzyl)-1,2,4-triazole
    [catalogue_number] => PA 12 0531000
    [category_ids] => ,123,81,78,75,76,82,
    [chemical_name] => 
    [weight] => 184.2
    [form] => C10H8N4
    [cas] => 112809-27-5
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PA 12 0531000

4-(4-Cyanobenzyl)-1,2,4-triazole


  • Catalogue No.:PA 12 0531000

  • CAS :

    112809-27-5

  • Molecular Formula : C10H8N4

  • Molecular Weight : 184.2

stdClass Object
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    [pname] => 4,4'-((1H-1,2,4-Triazol-1-yl)methylene)dibenzamide
    [catalogue_number] => PA 12 0531001
    [category_ids] => ,78,75,76,82,
    [chemical_name] => 
    [weight] => 321.34
    [form] => C17H15N5O2
    [cas] => 2170106-13-3
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PA 12 0531001

4,4'-((1H-1,2,4-Triazol-1-yl)methylene)dibenzamide


  • Catalogue No.:PA 12 0531001

  • CAS :

    2170106-13-3

  • Molecular Formula : C17H15N5O2

  • Molecular Weight : 321.34

stdClass Object
(
    [pname] => Tris(4-cyanophenyl)methanol
    [catalogue_number] => PA 12 0531002
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 335.37
    [form] => C22H13N3O
    [cas] => 117678-98-5
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PA 12 0531002

Tris(4-cyanophenyl)methanol


  • Catalogue No.:PA 12 0531002

  • CAS :

    117678-98-5

  • Molecular Formula : C22H13N3O

  • Molecular Weight : 335.37

stdClass Object
(
    [pname] => Letrozole (IPRS/12/18) -from IPC
    [catalogue_number] => PA IPRS 12 18
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => NA
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Letrozole (IPRS/12/18) -from IPC


  • Catalogue No.:PA IPRS 12 18

  • CAS :

    NA

  • Molecular Formula : NA

  • Molecular Weight : NA

stdClass Object
(
    [pname] => Letrozole Mono-Amide Impurity
    [catalogue_number] => PA 12 0531003
    [category_ids] => ,75,76,78,70,82,
    [chemical_name] => 
    [weight] => 303.33
    [form] => C17H13N5O
    [cas] => 2500927-47-7
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PA 12 0531003

Letrozole Mono-Amide Impurity


  • Catalogue No.:PA 12 0531003

  • CAS :

    2500927-47-7

  • Molecular Formula : C17H13N5O

  • Molecular Weight : 303.33