291506-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291506-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,5,0 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 291506-57:
(8*2)+(7*9)+(6*1)+(5*5)+(4*0)+(3*6)+(2*5)+(1*7)=145
145 % 10 = 5
So 291506-57-5 is a valid CAS Registry Number.
291506-57-5Relevant academic research and scientific papers
Diels-Alder cycloaddition of 5-aryl-2-pyrones
Afarinkia, Kamyar,Berna-Canovas, Jose
, p. 4955 - 4958 (2007/10/03)
Regio- and stereoselectivity of the Dieis-Alder cycloadditions of a range of 5-aryl-2-pyrones are reported. (C) 2000 Elsevier Science Ltd.
