117719-50-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117719-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,7,1 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 117719-50:
(8*1)+(7*1)+(6*7)+(5*7)+(4*1)+(3*9)+(2*5)+(1*0)=133
133 % 10 = 3
So 117719-50-3 is a valid CAS Registry Number.
117719-50-3Relevant academic research and scientific papers
ALCALOIDES MONOTERPENIQUES: SYNTHESE STEREOSPECIFIQUE DE LA Δ-7(7a) 4a-βH ISOTECOMANINE
Brayer, J.-L.,Alazard, J.-P.,Thal, C.
, p. 643 - 646 (2007/10/02)
The presence of an amine-borane group induces the stereoselective protonation in the γ position of the enolate 15 leading to the α,β-unsaturated ketone 4.
