497103-64-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 497103-64-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,1,0 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 497103-64:
(8*4)+(7*9)+(6*7)+(5*1)+(4*0)+(3*3)+(2*6)+(1*4)=167
167 % 10 = 7
So 497103-64-7 is a valid CAS Registry Number.
497103-64-7Relevant academic research and scientific papers
Synthesis of Boc-protected cis- and trans-4-trifluoromethyl-D-prolines
Qiu, Xiao-Long,Qing, Feng-Ling
, p. 2052 - 2057 (2007/10/03)
Both Boc-protected trans- and cis-4-trifluoromethyl prolines were synthesized starting from L-serine simultaneously. In our synthetic route, the key intermediate 4 was obtained through the reaction of Garner's aldehyde 1 with ylide 2 followed by trifluoro
