133523-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133523-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,5,2 and 3 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 133523-40:
(8*1)+(7*3)+(6*3)+(5*5)+(4*2)+(3*3)+(2*4)+(1*0)=97
97 % 10 = 7
So 133523-40-7 is a valid CAS Registry Number.
133523-40-7Relevant articles and documents
Studies on the chemistry of rapamycin: Novel transformations under Lewis-acid catalysis
Luengo,Konialian,Holt
, p. 991 - 994 (2007/10/02)
The reactivity of rapamycin under mild Lewis-acid catalysis has been investigated. The molecule has been found to be extremely sensitive to basic reagents due to carboxylate elimination β to the C24 ketone. However, transformations normally eff
