252648-42-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 252648-42-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,2,6,4 and 8 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 252648-42:
(8*2)+(7*5)+(6*2)+(5*6)+(4*4)+(3*8)+(2*4)+(1*2)=143
143 % 10 = 3
So 252648-42-3 is a valid CAS Registry Number.
252648-42-3Relevant articles and documents
Gold-catalyzed cycloisomerizations of ene-ynamides
Couty, Sylvain,Meyer, Christophe,Cossy, Janine
experimental part, p. 1809 - 1832 (2009/06/28)
The gold-catalyzed cycloisomerizations of 1,6-ene-ynamides proceed under mild conditions and lead to cyclobutanones from terminal or trimethylsilyl substituted ynamides, or to carbonyl compounds bearing a 2,3-methanopyrrolidine subunit from substrates pos