1280504-38-2

Basic information

• Product Name: 2-(propan-2-ylidine)-1-[di-(4-cyanophenyl)methyl]hydrazine
• Synonyms: 2-(propan-2-ylidine)-1-[di-(4-cyanophenyl)methyl]hydrazine
• CAS NO: 1280504-38-2
• Molecular Weight: 288.352
• Mol File: 1280504-38-2.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 2-(propan-2-ylidine)-1-[di-(4-cyanophenyl)methyl]hydrazine(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(propan-2-ylidine)-1-[di-(4-cyanophenyl)methyl]hydrazine(1280504-38-2)
• EPA Substance Registry System: 2-(propan-2-ylidine)-1-[di-(4-cyanophenyl)methyl]hydrazine(1280504-38-2)

Safety Data

• Hazardous Substances Data: 1280504-38-2(Hazardous Substances Data)

Upstream product

• 64568-34-9 4-[(4-cyanophenyl)methanehydrazonoyl]benzonitrile 
• 67-64-1 acetone 

Downstream Products

• 112809-51-5 letrozol 

Relevant articles and documents

REGIOSELECTIVE SYNTHESIS OF LETROZOLE

The present invention relates to an improved process for the preparation of letrozole (I) and its pharmaceutically acceptable salts, to compositions comprising letrozole or a pharmaceutically acceptable salt thereof, and to uses of such compositions. In particular it relates to a process and to novel intermediates for preparing letrozole and its salts substantially free from regioisomeric impurities.