161561-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161561-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,5,6 and 1 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 161561-91:
(8*1)+(7*6)+(6*1)+(5*5)+(4*6)+(3*1)+(2*9)+(1*1)=127
127 % 10 = 7
So 161561-91-7 is a valid CAS Registry Number.
161561-91-7Relevant academic research and scientific papers
Stereocontrolled entry to negamycin from D-glucose
Socha, Darlusz,Jurczak, Margarita,Chmielewski, Marek
, p. 135 - 138 (2007/10/02)
Conjugate addition-rearrangement of N-benzylhydroxy-lamine to lactone 6 provides isoxazolidin-5-one 7 which was in turn mesylated at the hydroxy group and subjected to the next skeleton rearrangement to afford 3,5-disubstituted isoxazolidine 10. Standard
