144709-85-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144709-85-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,7,0 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 144709-85:
(8*1)+(7*4)+(6*4)+(5*7)+(4*0)+(3*9)+(2*8)+(1*5)=143
143 % 10 = 3
So 144709-85-3 is a valid CAS Registry Number.
144709-85-3Relevant academic research and scientific papers
Studies on cyclisation of 3--4-hydroxy-1-benzopyran-2(H)-one
Majumdar, K C,Khan, A T,Gupta, A K,Kundu, A K,Choudhury, P K
, p. 667 - 672 (2007/10/02)
Benzofurobenzopyran-6-one (9) has been synthesised from 3--4-hydroxy-1-benzopyran-2(H)-one (5) via oxymercuration with mercuric acetate in methanol followed by dehydrogenative demercuration with Pd-C in refluxing diphenyl ether.I
