144940-34-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144940-34-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,9,4 and 0 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 144940-34:
(8*1)+(7*4)+(6*4)+(5*9)+(4*4)+(3*0)+(2*3)+(1*4)=131
131 % 10 = 1
So 144940-34-1 is a valid CAS Registry Number.
144940-34-1Relevant articles and documents
Asymmetric hydroformylation of deltacyclene
Kollar,Wada,Lautens
, p. 1011 - 1014 (1992)
Deltacyclene (tetracyclo[4,3,0,02,903,7]non-4-ene was stereoselectively hydroformylated to exo-formyl-deltacyclane in the presence of rhodium and platinum catalysts. In the case of optically active bisphosphines up to 22% e.e-s were achieved.
