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 - API Standards
[catalogue_number] => PA 12 53000
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[weight] => 285.30
[form] => C17H11N5
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Letrozole - API Standards
Catalogue No.:PA 12 53000
Molecular Formula : C17H11N5
Molecular Weight : 285.30
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[pname] => Letrozole-d4 (major)
[catalogue_number] => PA STI 056360
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[weight] => 289.33
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Catalogue No.:PA STI 056360
Molecular Formula : C17H7D4N5
Molecular Weight : 289.33
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[catalogue_number] => PA 12 0531000
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4-(4-Cyanobenzyl)-1,2,4-triazole