663176-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663176-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,1,7 and 6 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 663176-45:
(8*6)+(7*6)+(6*3)+(5*1)+(4*7)+(3*6)+(2*4)+(1*5)=172
172 % 10 = 2
So 663176-45-2 is a valid CAS Registry Number.
663176-45-2Relevant academic research and scientific papers
Remarkable Effect of a Silicon Group on the Stereoselectivity of Radical 5-exo-Trig Cyclizations
James, Philippe,Landais, Yannick
, p. 325 - 328 (2007/10/03)
(Matrix presented) Sulfonyl radical mediated 5-exo-trig cyclization of chiral 3-silylhepta-1,6-dienes has been shown to provide cyclopentanes having up to four stereogenic centers with an unexpectedly high level of stereocontrol.
