221664-50-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221664-50-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,6 and 4 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 221664-50:
(8*2)+(7*2)+(6*1)+(5*6)+(4*6)+(3*4)+(2*5)+(1*0)=112
112 % 10 = 2
So 221664-50-2 is a valid CAS Registry Number.
221664-50-2Relevant academic research and scientific papers
Synthesis of chiral bicyclo[4.3.1]decanes via an intramolecular carbonyl ene-reaction
Srikrishna,Dinesh,Anebouselvy
, p. 1031 - 1034 (2007/10/03)
Synthesis of chiral bicyclo[4.3.1]decanes via an intramolecular acid catalysed type II ene reaction of chiral (5-isopropenylcyclohex-2- enyl)acetaldehydes derived from (R)-carvone is described.
