128504-32-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128504-32-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,0 and 4 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 128504-32:
(8*1)+(7*2)+(6*8)+(5*5)+(4*0)+(3*4)+(2*3)+(1*2)=115
115 % 10 = 5
So 128504-32-5 is a valid CAS Registry Number.
128504-32-5Relevant academic research and scientific papers
Synthesis of 4H-Pyranopyrimidines
Marchalin, Stefan,Ilavsky, Dusan,Bruncko, Milan
, p. 1101 - 1106 (2007/10/02)
Good yields of substituted 5-(5R-2-furyl)-4H-pyranopyrimidines 4 were obtained in the reaction of 2-ethoxymethyleneamino-3-cyano-4H-pyranes 2 with ammonia.Compounds 2 were prepared by the condensation of the starting 2-amino-5-acetyl-3-cyano-6-meth
