175843-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 175843-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,5,8,4 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 175843-91:
(8*1)+(7*7)+(6*5)+(5*8)+(4*4)+(3*3)+(2*9)+(1*1)=171
171 % 10 = 1
So 175843-91-1 is a valid CAS Registry Number.
175843-91-1Relevant articles and documents
Synthesis of 'push-pull' enynes
Berger, Daniel,Bartlome, Andreas,Neuenschwander, Markus
, p. 179 - 191 (2007/10/03)
'Push-pull' enynes 1a-1f are easily available by Pd catalyzed coupling of stannyl-ynamines 15 and silylynamines 16 with β-iodo-enones 8 (Schemes 7 and 8).