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216436-72-5

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216436-72-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216436-72-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,4,3 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 216436-72:
(8*2)+(7*1)+(6*6)+(5*4)+(4*3)+(3*6)+(2*7)+(1*2)=125
125 % 10 = 5
So 216436-72-5 is a valid CAS Registry Number.

216436-72-5Relevant articles and documents

A novel synthesis of 2-(2-quinoxalino)-3,5-diarylfurans

Duffy, Kevin J.,Haltiwanger, R. Curtius,Huang, Yifang,Konialian-Beck, Arda,Luengo, Juan I.

, p. 8017 - 8020 (2007/10/03)

A short synthesis of 2-(2-quinoxalino)-3,5-diarylfurans, allowing the stepwise introduction of the aromatic rings, is designed and implemented utilizing the DDQ promoted cyclization of 4-(2-quinoxalino)-1,3- diarylbutanones as the key transformation.

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