733744-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 733744-41-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,3,3,7,4 and 4 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 733744-41:
(8*7)+(7*3)+(6*3)+(5*7)+(4*4)+(3*4)+(2*4)+(1*1)=167
167 % 10 = 7
So 733744-41-7 is a valid CAS Registry Number.
733744-41-7Relevant academic research and scientific papers
Studies towards the total synthesis of contignasterol
Izzo, Irene,Della Monica, Carmela,Bifulco, Giuseppe,De Riccardis, Francesco
, p. 5577 - 5586 (2007/10/03)
The (17R,20S,22S,24S) C20-C29 segment of contignasterol has been stereoselectively prepared in 8 steps and 40% overall yield from (S)-carvone. Synthetic studies towards contignasterol's C/D ring functionalization/isomerization are al