1380234-52-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1380234-52-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,0,2,3 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1380234-52:
(9*1)+(8*3)+(7*8)+(6*0)+(5*2)+(4*3)+(3*4)+(2*5)+(1*2)=135
135 % 10 = 5
So 1380234-52-5 is a valid CAS Registry Number.
1380234-52-5Relevant articles and documents
A new stereocontrolled synthetic route to (-)-echinosporin from d-glucose via Padwa allenylsulfone [3 + 2]-anionic cycloadditive elimination
Flasz, Jakub T.,Hale, Karl J.
, p. 3024 - 3027 (2012/08/07)
A new formal total synthesis of (-)-echinosporin has been developed based upon the Padwa [3 + 2]-cycloadditive elimination reaction of allenylsulfone 4 with the d-glucose-derived enone 14 which provides cycloadduct 12.
