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
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[weight] => 285.30
[form] => C17H11N5
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Catalogue No.:PA 12 53010
Molecular Formula : C17H11N5
Molecular Weight : 285.30
stdClass Object
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[pname] => Letrozole - Impurity B
[catalogue_number] => PA 12 53020
[category_ids] => ,80,75,71,78,70,82,
[chemical_name] =>
[weight] => 319.36
[form] => C22H13N3
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Catalogue No.:PA 12 53020
Molecular Formula : C22H13N3
Molecular Weight : 319.36
stdClass Object
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[pname] => 4-(4-Cyanobenzyl)-1,2,4-triazole
[catalogue_number] => PA 12 0531000
[category_ids] => ,123,81,78,75,76,82,
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[weight] => 184.2
[form] => C10H8N4
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4-(4-Cyanobenzyl)-1,2,4-triazole
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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4,4'-((1H-1,2,4-Triazol-1-yl)methylene)dibenzamide
Catalogue No.:PA 12 0531001
Molecular Formula : C17H15N5O2
Molecular Weight : 321.34
stdClass Object
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[pname] => Tris(4-cyanophenyl)methanol
[catalogue_number] => PA 12 0531002
[category_ids] => ,75,76,78,70,82,
[chemical_name] =>
[weight] => 335.37
[form] => C22H13N3O
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Tris(4-cyanophenyl)methanol
Catalogue No.:PA 12 0531002
Molecular Formula : C22H13N3O
Molecular Weight : 335.37
stdClass Object
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[pname] => Letrozole (IPRS/12/18) -from IPC
[catalogue_number] => PA IPRS 12 18
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[weight] => NA
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Letrozole (IPRS/12/18) -from IPC
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
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Letrozole Mono-Amide Impurity
Catalogue No.:PA 12 0531003
Molecular Formula : C17H13N5O
Molecular Weight : 303.33