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81683-76-3

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81683-76-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81683-76-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,8 and 3 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81683-76:
(7*8)+(6*1)+(5*6)+(4*8)+(3*3)+(2*7)+(1*6)=153
153 % 10 = 3
So 81683-76-3 is a valid CAS Registry Number.

81683-76-3Downstream Products

81683-76-3Relevant articles and documents

REGIOSELECTIVITY OF REACTIONS OF 2-FUROYL-N-ARYL NITRILE IMINE WITH SOME DIPOLAROPHILES

Shawali, Ahmad Sami,Hassaneen, Hamdi Mahmoud,Shetta, Abdel-Fattah,Osman, Abdou,Abdel-Galil, Fathi

, p. 57 - 66 (2007/10/02)

The regioselectivity of the cycloadditions of nitrile imines (1a-d), derived from 2-furoylhydrazidoyl chlorides (3a-d), to the C=C and C=S double bonds of the enol tautomer of acetylacetone and the resonance stabilized thiocyanate anion respectively was investigated.The results indicate that the reactions studied are dipole-LUMO controlled and that the larger orbital coefficient in the LUMO of 7 is on the carbon atom.

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