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956593-19-4

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956593-19-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 956593-19-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,6,5,9 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 956593-19:
(8*9)+(7*5)+(6*6)+(5*5)+(4*9)+(3*3)+(2*1)+(1*9)=224
224 % 10 = 4
So 956593-19-4 is a valid CAS Registry Number.

956593-19-4Downstream Products

956593-19-4Relevant articles and documents

Synthesis and investigation of some 1,4-disubstituted 2-pyrrolidinones

Brokaite,Mickevicius,Mikulskiene

, p. 1158 - 1167 (2008/09/20)

A series of condensation products of 1-aryl-4-hydrazinecarbonyl-2- pyrrolidinones with acetone, 2,4-pentanedione, and aromatic aldehydes was obtained and identified by the combination of IR, mass and 1H, 13C NMR spectroscopy. The results of their structural studies by NMR spectroscopy are provided. It was ascertained that the presence of the NH group determines the existence of the mixtures of the Z/E-isomers of compounds under study. The availability of Z-isomer as a sterically favorable one was also verified by computer molecular modeling. Springer Science+Business Media, Inc. 2006.

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