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69416-27-9

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69416-27-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69416-27-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,4,1 and 6 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 69416-27:
(7*6)+(6*9)+(5*4)+(4*1)+(3*6)+(2*2)+(1*7)=149
149 % 10 = 9
So 69416-27-9 is a valid CAS Registry Number.

69416-27-9Downstream Products

69416-27-9Relevant articles and documents

KINETICS AND MECHANISM OF HYDROLYSIS OF ARYL N-METHOXYCARBAMATES AND THEIR DERIVATIVES

Mindl, Jaromir,Sterba, Vojeslav

, p. 900 - 905 (2007/10/02)

Hydrolysis kinetics have been studied of 3- and 4-substituted phenyl N-methoxycarbamates and their N-methyl derivatives in aqueous buffers at 60 deg C.The N-methyl derivatives show linear dependence of the rate constants on concentration of hydroxyl ion in the pH range measured.Hydrolysis of aryl N-methoxycarbamates is independent of hydroxyl ion concentration at higher pH values.Logarithms of the rate constants have been correlated with the substituent constants ?.The calculated values 0.9 for N-methyl derivatives, 4.5 and 3.3 for aryl N-methoxy-carbamates in theregions of linear pH-dependency and pH-independency, respectively, suggest that the hydrolysis follows the BAc2 and ElcB mechanisms in the case of the N-methyl derivatives and aryl N-methoxycarbamates, respectively.Difference between the two ρ constants for the hydrolysis of aryl N-methoxycarbamates agrees with the found value ρ=1.2 for dissociation constants of these compounds.The elimination mechanism has been confirmed by reaction of the isocyanate formed with added aniline to give the respective urea.

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