138100-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138100-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,1,0 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138100-25:
(8*1)+(7*3)+(6*8)+(5*1)+(4*0)+(3*0)+(2*2)+(1*5)=91
91 % 10 = 1
So 138100-25-1 is a valid CAS Registry Number.
138100-25-1Relevant articles and documents
Towards the total synthesis of clerodin. Part I
Bouchard,Renard,Lallemand
, p. 5953 - 5956 (2007/10/02)
A highly stereo- and enantioselective approach to clerodin 1, an insect antifeedant, is described. The key step involved the stereospecific formation of the C9-C11 bond, at an early stage of the synthesis, using a Claisen rearrangement.