133343-13-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133343-13-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,3,4 and 3 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 133343-13:
(8*1)+(7*3)+(6*3)+(5*3)+(4*4)+(3*3)+(2*1)+(1*3)=92
92 % 10 = 2
So 133343-13-2 is a valid CAS Registry Number.
133343-13-2Relevant academic research and scientific papers
A Chiral Total Synthesis of (-)-Physostigmine
Node, Manabu,Hao, Xiao-jiang,Fuji, Kaoru
, p. 57 - 60 (2007/10/02)
A chiral total synthesis of (-)-physostigmine via (-)-eserethole has been achieved starting from (S)-(-)-2-methyl-2-(2'-nitrovinyl)-δ-valerolactone.
