1639452-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1639452-85-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,3,9,4,5 and 2 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1639452-85:
(9*1)+(8*6)+(7*3)+(6*9)+(5*4)+(4*5)+(3*2)+(2*8)+(1*5)=199
199 % 10 = 9
So 1639452-85-9 is a valid CAS Registry Number.
1639452-85-9Relevant academic research and scientific papers
A facile method for the synthesis of aroyl pyrazoles from functionalized ketene dithioacetals
Sreedevi,Mathews,Devaky,Anabha
, p. 562 - 565 (2014/06/10)
On treating with ammonium acetate in DMSO aroyl formyl ketene dithioacetals were transformed into valuable intermediates 3-amino-2-aroyl-3-(methylsulfanyl) -2-propenals, which could be explored for the synthesis of aroyl aminopyrazoles.
