140867-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140867-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,8,6 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140867-03:
(8*1)+(7*4)+(6*0)+(5*8)+(4*6)+(3*7)+(2*0)+(1*3)=124
124 % 10 = 4
So 140867-03-4 is a valid CAS Registry Number.
140867-03-4Relevant articles and documents
On the Mechanism of the Wolff-Kishner Reduction
Taber, Douglass F.,Stachel, Shawn J.
, p. 903 - 906 (1992)
The observation that Wolff-Kishner reduction of a δ,ε-unsaturated ketone leads to the trans cyclized product supports the proposal intermediacy of a carbanion in this reaction. Key Words: Wolff-Kishner; carbonyl; reduction; anionic cyclization; free radical cyclization
