78175-09-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78175-09-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,7 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 78175-09:
(7*7)+(6*8)+(5*1)+(4*7)+(3*5)+(2*0)+(1*9)=154
154 % 10 = 4
So 78175-09-4 is a valid CAS Registry Number.
78175-09-4Relevant academic research and scientific papers
Synthesis of Optically Active Pyrrolizidine Bases
Robins, David J.,Sakdarat, Santi
, p. 909 - 913 (2007/10/02)
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
