136287-56-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136287-56-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,2,8 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 136287-56:
(8*1)+(7*3)+(6*6)+(5*2)+(4*8)+(3*7)+(2*5)+(1*6)=144
144 % 10 = 4
So 136287-56-4 is a valid CAS Registry Number.
136287-56-4Relevant 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).