106659-87-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 106659-87-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,6,5 and 9 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 106659-87:
(8*1)+(7*0)+(6*6)+(5*6)+(4*5)+(3*9)+(2*8)+(1*7)=144
144 % 10 = 4
So 106659-87-4 is a valid CAS Registry Number.
106659-87-4Relevant academic research and scientific papers
A Convenient Synthesis of 1-Substituted-2,5(4H)-piperazinediones
Lovelette, C. A.,Geagan, K.
, p. 229 - 231 (2007/10/02)
1-Substituted-2,5(4H)-piperazinediones are prepared by the Michael addition of acrylonitrile and methyl acrylate and glycylglycine, DL-alanyl-DL-alanine and DL-alanyl-DL-phenylalanine followed by cyclodehydration in refluxing xylenes.
