188716-72-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188716-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,7,1 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 188716-72:
(8*1)+(7*8)+(6*8)+(5*7)+(4*1)+(3*6)+(2*7)+(1*2)=185
185 % 10 = 5
So 188716-72-5 is a valid CAS Registry Number.
188716-72-5Relevant academic research and scientific papers
Synthesis of Phenylpyrrolylpyrroles. Part III
Dumoulin,Rault,Robba
, p. 13 - 16 (2007/10/03)
Several ethyl 3-[(3-aryl-4-methyl)-2(1H)-pyrrolyl]-4-methyl-1H-pyrrole-2-carboxylates have been synthesized using two successive ethyl isocyanide addition-cyclizations to the appropriate nitropropene derivatives.
