1147271-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1147271-05-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,4,7,2,7 and 1 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1147271-05:
(9*1)+(8*1)+(7*4)+(6*7)+(5*2)+(4*7)+(3*1)+(2*0)+(1*5)=133
133 % 10 = 3
So 1147271-05-3 is a valid CAS Registry Number.
1147271-05-3Relevant articles and documents
Stereoselective synthesis of (+)-secosyrin 1
Gautam,Venkateswara Rao
scheme or table, p. 1693 - 1695 (2009/09/05)
A Chiron approach for the synthesis of (+)-secosyrin 1 from d-mannitol has been described. The key steps are a stereoselective Wittig reaction and an intramolecular Michael addition on the disubstituted butenolide, leading to a highly stereoselective form
