138252-28-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138252-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,5 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138252-28:
(8*1)+(7*3)+(6*8)+(5*2)+(4*5)+(3*2)+(2*2)+(1*8)=125
125 % 10 = 5
So 138252-28-5 is a valid CAS Registry Number.
138252-28-5Relevant articles and documents
Chemistry of Insect Antifeedants from Azadirachta indica, Part 14: Absolute Configuration of Azadirachtin
Ley, Steven V.,Lovell, Helen,Williams, David J.
, p. 1304 - 1306 (2007/10/02)
The absolute configuration of the insect antifeedant azadirachtin is determined by high field NMR application of the Mosher method and confirmed by X-ray crystallographic analysis.
