220049-48-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 220049-48-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,0,4 and 9 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 220049-48:
(8*2)+(7*2)+(6*0)+(5*0)+(4*4)+(3*9)+(2*4)+(1*8)=89
89 % 10 = 9
So 220049-48-9 is a valid CAS Registry Number.
220049-48-9Relevant academic research and scientific papers
Diastereoselective cyclopropanation of α,β-unsaturated acetals of a novel camphor-derived chiral auxiliary
Kaye, Perry T.,Molema, Warner E.
, p. 2479 - 2480 (2007/10/03)
Reaction of selected α,β-unsaturated aldehydes with phenyl 2,3-dihydroxybornane-10-sulfonate affords acetals which undergo diastereoselective (> 99% de) Simmons-Smith cyclopropanation.
