104309-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 104309-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,3,0 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 104309-67:
(8*1)+(7*0)+(6*4)+(5*3)+(4*0)+(3*9)+(2*6)+(1*7)=93
93 % 10 = 3
So 104309-67-3 is a valid CAS Registry Number.
104309-67-3Relevant academic research and scientific papers
SYNTHESIS, HALOGENATION, AND NITRATION OF 6-METHYL-3-PHENYL-2-PYRONE DERIVATIVES
Lyukmanov, N. F.,Kovshev, E. I.
, p. 1215 - 1218 (2007/10/02)
Simple methods for the synthesis of 3-aryl-6-methyl-2-pyrones and 3-aryl-5-carbalkoxy-6-methyl-2-pyrones by the reaction of ethyl α-formylarylacetates with acetone and acetoacetic acid esters, respectively, are proposed.Some electrophilic substitution rea
