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31408-44-3

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31408-44-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31408-44-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,4,0 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 31408-44:
(7*3)+(6*1)+(5*4)+(4*0)+(3*8)+(2*4)+(1*4)=83
83 % 10 = 3
So 31408-44-3 is a valid CAS Registry Number.

31408-44-3Relevant articles and documents

SUBSTITUENT EFFECTS IN THE INTRAMOLECULAR INVERSE ELECTRON DEMAND DIELS-ALDER REACTIONS OF 5-(P-SUBSTITUTED PHENYL)-2-(1,1-DICYANOPENT-4-YN-1-YL)PYRIMIDINES.

Frissen, A. E.,Marcelis, A. T. M.,Melger, W. C.,Plas, H. C. van der

, p. 6891 - 6900 (2007/10/02)

2-(1,1-dicyanopent-4-yn-1-yl)-5-phenylpyrimidines and some p-substituted phenyl derivatives undergo an intramolecular inverse electron demand Diels-Alder reaction to give the corresponding 3-aryl-7,7-dicyano-6,7-dihydro-5H-1-pyrindines.A Hammett plot of l

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