633337-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 633337-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,3,3,3 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 633337-31:
(8*6)+(7*3)+(6*3)+(5*3)+(4*3)+(3*7)+(2*3)+(1*1)=142
142 % 10 = 2
So 633337-31-2 is a valid CAS Registry Number.
633337-31-2Relevant academic research and scientific papers
A novel synthetic approach to (±)-desoxynoreseroline
Mekhael, Maged K. G.,Heimgartner, Heinz
, p. 2805 - 2813 (2007/10/03)
(±)-Desoxynoreseroline (3), the basic ring structure of the pharmacologically active alkaloid physostigmine (1), was synthesized starting from 3-allyl-1,3-dimethyloxindole (9). The latter was prepared from the corresponding 2H-azirin-3-amine 6 by a BFsub
