145586-74-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 145586-74-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,5,8 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 145586-74:
(8*1)+(7*4)+(6*5)+(5*5)+(4*8)+(3*6)+(2*7)+(1*4)=159
159 % 10 = 9
So 145586-74-9 is a valid CAS Registry Number.
145586-74-9Relevant academic research and scientific papers
SYNTHESIS OF SOME DIETHYLPHOSPHONO SUBSTITUTED 2,5-DIHYDROFURAN, 2H-1-BENZOPYRANS AND 3H-NAPHTHOPYRAN
Guervenou, J.,Sturtz, G.
, p. 255 - 262 (2007/10/02)
The preparation of α,β unsaturated monophosphonate heterocycles is reported. 9-Diethylphosphono-7-oxabicyclonon-1(9)-ene, some 3-diethylphosphono-2H-1-benzopyrans and 2-diethylphosphono-3H-naphthopyran have been prepared from tetraethyl ethy
