149253-26-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149253-26-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,2,5 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 149253-26:
(8*1)+(7*4)+(6*9)+(5*2)+(4*5)+(3*3)+(2*2)+(1*6)=139
139 % 10 = 9
So 149253-26-9 is a valid CAS Registry Number.
149253-26-9Relevant articles and documents
Rhodium catalysed decarbonylation of optically active campholenal analogues
Chapuis,Winter,Schulte-Elte
, p. 6135 - 6138 (2007/10/02)
Campholenal analogues (+)-1a-d were decarbonylated with a catalytic amount of Rh/Al2O3 with only slight racemization. Experiment with other catalysts showed that racemization increases with the ability of the metal to form a π-allyl