109556-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109556-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,5 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 109556-83:
(8*1)+(7*0)+(6*9)+(5*5)+(4*5)+(3*6)+(2*8)+(1*3)=144
144 % 10 = 4
So 109556-83-4 is a valid CAS Registry Number.
109556-83-4Relevant academic research and scientific papers
Lead Tetraacetate Oxidation of 4-Oximinoflavans
Kale, Arun V.,Berge, Diwakar D.
, p. 408 - 410 (2007/10/02)
4-Oximinoflavans (I) give the corresponding flavanones (II), flavones (III), 3-acetoxyflavonols (IV) and 3-acetoxydihydroflavonols (V) on oxidation with lead tetraacetate in dry benzene.The yields of the major products, flavanones (II) range between 24 and 36percent.
