102140-79-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102140-79-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,1,4 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 102140-79:
(8*1)+(7*0)+(6*2)+(5*1)+(4*4)+(3*0)+(2*7)+(1*9)=64
64 % 10 = 4
So 102140-79-4 is a valid CAS Registry Number.
102140-79-4Relevant academic research and scientific papers
Total Synthesis of (+)-Milbemycin β3
Attwood, Stephen V.,Barrett, Anthony G. M.,Carr, Robin A. E.,Richardson, Geoffrey
, p. 479 - 481 (2007/10/02)
(+)-Milbemycin β3 (1) was prepared by total synthesis from (6S,8R,9S)-methyl 8,9-dimethyl-4-oxo-1,7-dioxaspiroundec-2-ene-2-carboxylate (2), (4R,6R)-4-methyl-6-phenylsulphonyl-(E)-hept-2-en-1-ol (3a), and 2-ethyl-4-methoxy-5-methylbenzoic
