433961-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 433961-91-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,3,9,6 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 433961-91:
(8*4)+(7*3)+(6*3)+(5*9)+(4*6)+(3*1)+(2*9)+(1*1)=162
162 % 10 = 2
So 433961-91-2 is a valid CAS Registry Number.
433961-91-2Relevant articles and documents
Synthesis and heterocyclization of β-aroyl-α- diphenylphosphorylpropionic acids
Khachatryan,Khachikyan,Karamyan,Panosyan,Indzhikyan
, p. 446 - 451 (2004)
It has been established that diphenylphosphine oxide reacts smoothly with β-aroylacrylic acids with the formation of β-aroyl-α- diphenylphosphorylpropionic acids, which were cyclized under the action of hydroxylamine, hydrazine hydrate, and phenylhydrazin
