84637-21-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84637-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,6,3 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84637-21:
(7*8)+(6*4)+(5*6)+(4*3)+(3*7)+(2*2)+(1*1)=148
148 % 10 = 8
So 84637-21-8 is a valid CAS Registry Number.
84637-21-8Relevant articles and documents
Synthesis and Reactions of 1-(2'-Furyl)-3-(substituted-2''-hydroxyphenyl)propanediones
Nair, S. B.,Wadodkar, K. N.
, p. 573 - 574 (2007/10/02)
The title compounds (III) have been synthesised by the base-catalysed Baker-Venkataraman transformation of furoyl esters (II) of substituted 2-hydroxyacetophenones.These propanediones (III) on acid cyclization, bromination, treatment with SO2Cl2, and cond