1027403-42-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1027403-42-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,7,4,0 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1027403-42:
(9*1)+(8*0)+(7*2)+(6*7)+(5*4)+(4*0)+(3*3)+(2*4)+(1*2)=104
104 % 10 = 4
So 1027403-42-4 is a valid CAS Registry Number.
1027403-42-4Relevant academic research and scientific papers
Synthesis of C13-C22 fragment of the marine sponge polyketide callystatin A
Dias, Luiz C.,Meira, Paulo R.R.
, p. 185 - 187 (2007/10/03)
We wish to report here our initial efforts towards the total synthesis of callystatin A, describing the synthesis of the C13-C22 fragment. This asymmetric approach uses an efficient syn-aldol reaction, and a diastereoselective epoxidation of an allylic al
