291506-54-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 291506-54-2 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 4 respectively.
Calculate Digit Verification of CAS Registry Number 291506-54:
(8*2)+(7*9)+(6*1)+(5*5)+(4*0)+(3*6)+(2*5)+(1*4)=142
142 % 10 = 2
So 291506-54-2 is a valid CAS Registry Number.
291506-54-2Relevant articles and documents
Diels-Alder cycloaddition of 5-aryl-2-pyrones
Afarinkia, Kamyar,Berna-Canovas, Jose
, p. 4955 - 4958 (2000)
Regio- and stereoselectivity of the Dieis-Alder cycloadditions of a range of 5-aryl-2-pyrones are reported. (C) 2000 Elsevier Science Ltd.