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73764-14-4

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73764-14-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73764-14-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,7,6 and 4 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 73764-14:
(7*7)+(6*3)+(5*7)+(4*6)+(3*4)+(2*1)+(1*4)=144
144 % 10 = 4
So 73764-14-4 is a valid CAS Registry Number.

73764-14-4Relevant articles and documents

7. Substituent and Isotope Effects on the Hydrolysis Rates of 2-Aryl-2-diazocarboxylic Esters

Bui-Nguyen, Mai-Huong,Dahn, Hans,McGarrity, John F.

, p. 63 - 75 (1980)

The overall kinetic solvent isotope effects on the acid catalyzed hydrolysis of a series of 2-diazo-2-carboxylic esters ArCN2COOCH3, and one 2-aryl-2-diazocarboxamide C6H5CH2CON(CH3)2 very inversely with the reactivity of the substrate, between limits of 3.14 and 1.46.A linear Hammett plot for the hydrolysis rates of the α-diazocarboxylic esters indicates that there is no mechanistic change for the hydronium-ion-catalyzed reaction.The relation between hydrolysis rate and buffer acid concentration deviates from linearity for high values of the latter.It is shown on the basis of the solvent isotope effects for the non-linear region that this deviation does not stem from a mechanistic change caused by the buffer base component.The specific salt effects on the general acid-catalyzed reaction are discussed.

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