74729-92-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74729-92-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,7,2 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74729-92:
(7*7)+(6*4)+(5*7)+(4*2)+(3*9)+(2*9)+(1*2)=163
163 % 10 = 3
So 74729-92-3 is a valid CAS Registry Number.
74729-92-3Relevant academic research and scientific papers
Diethyl Malonodiimidate in Pyrimidine Synthesis
Meyer, Horst
, p. 673 - 676 (2007/10/02)
Diethyl malonodiimidate (4) and the aldehydes 2 undergo condensation to give the 6-ethoxy-4-oxo-2,3,4,5-tetrahydropyrimidines 5a-e.Condensation of the heterocumulenes 6 with 4 leads to the 4-amino-6-ethoxy-2-oxo(thioxo)-2,3-dihydropyrimidines 7a-d.
