142429-82-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 142429-82-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,4,2 and 9 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 142429-82:
(8*1)+(7*4)+(6*2)+(5*4)+(4*2)+(3*9)+(2*8)+(1*2)=121
121 % 10 = 1
So 142429-82-1 is a valid CAS Registry Number.
142429-82-1Relevant articles and documents
INVERSION DE POLARITE a4 DES CETONES α-ALLENIQUES PAR LE GROUPE TRIPHENYLPHOSPHONIO
Cristau, Henri-Jean,Viala, Jacques,Christol, Henri
, p. 1569 - 1572 (2007/10/02)
The a4 umpolung of α-allenic ketones is performed using the triphenylphosphonio group.It results in inducing an electrophilic character at the carbon γ to the carbonyl function and in changing the regioselectivity of the additions of active hyd