73354-02-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73354-02-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,3,5 and 4 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73354-02:
(7*7)+(6*3)+(5*3)+(4*5)+(3*4)+(2*0)+(1*2)=116
116 % 10 = 6
So 73354-02-6 is a valid CAS Registry Number.
73354-02-6Relevant articles and documents
Synthesis of Optically Active Pyrrolizidine Bases
Robins, David J.,Sakdarat, Santi
, p. 909 - 913 (1981)
Regiospecific 1,3-dipolar cycloaddition of ethyl propiolate to the NO-diformyl derivative (1) of natural (-)-4-hydroxy-L-proline followed by stereospecific hydrogenation gave ethyl (+)-6α-hydroxy-β-pyrrolizidine-1α-carboxylate (4).Confirmation of the abso