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1047623-91-5

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1047623-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1047623-91-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,7,6,2 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1047623-91:
(9*1)+(8*0)+(7*4)+(6*7)+(5*6)+(4*2)+(3*3)+(2*9)+(1*1)=145
145 % 10 = 5
So 1047623-91-5 is a valid CAS Registry Number.

1047623-91-5Downstream Products

1047623-91-5Relevant articles and documents

Kinetics of the reaction of substituted 4-nitrophenyl benzoates with benzenethiol in the presence of potassium carbonate in dimethylformamide

Os'kina,Vlasov

, p. 561 - 569 (2008)

The effect of the substituent nature on the rate and activation parameters of transesterification of a series of 4-nitrophenyl benzoates with benzenethiol in dimethylformamide in the presence of potassium carbonate was studied by the competing reaction method. In all cases, change of the Gibbs energy of activation is determined mainly by variation of the enthalpy of activation. 4-Nitrophenyl benzoates having electron-withdrawing substituents in the benzoyl fragment were found to fit an isokinetic relation with an isokinetic temperature β of 318 K. Enthalpy-entropy compensation effect was observed in the reactions with all the examined 4-nitrophenyl benzoates. The relation between the reactivity and polarizability of nucleophilic center in S-and O-nucleophiles is discussed.

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