140866-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 140866-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,8,6 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 140866-91:
(8*1)+(7*4)+(6*0)+(5*8)+(4*6)+(3*6)+(2*9)+(1*1)=137
137 % 10 = 7
So 140866-91-7 is a valid CAS Registry Number.
140866-91-7Relevant academic research and scientific papers
A Concise Synthesis of the C(9)-C(17) Fragment of the Avermectins
Booker-Milburn, Kevin I.,Heffernan, Gavin D.,Parsons, Philip J.
, p. 350 - 351 (2007/10/02)
A rapid entry into the C(9)-C(17) fragment of the avermectins is described which uses a sigmatropic rearrangement of a functionalised allylic as the key step.
