1333240-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1333240-91-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,3,2,4 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1333240-91:
(9*1)+(8*3)+(7*3)+(6*3)+(5*2)+(4*4)+(3*0)+(2*9)+(1*1)=117
117 % 10 = 7
So 1333240-91-7 is a valid CAS Registry Number.
1333240-91-7Relevant academic research and scientific papers
Synthesis and biological screening of new pyrazolyl chromones
Karale,Chaudharl,Jadhav,Akolkar
, p. 381 - 384 (2013/09/24)
Difluorinated 2-hydroxyacetophenone or acetamido 2-hydroxyacetophenone were converted into 3 by condensation with substituted pyrazole aldehydes. 3 were converted into 3-chlorochromones 4 by treatment with DMSO/CuCl2 while 3 when treated with D
