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91563-72-3

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91563-72-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91563-72-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,6 and 3 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91563-72:
(7*9)+(6*1)+(5*5)+(4*6)+(3*3)+(2*7)+(1*2)=143
143 % 10 = 3
So 91563-72-3 is a valid CAS Registry Number.

91563-72-3Relevant articles and documents

Direct access to anthranilic acid derivatives via CO2 incorporation reaction using arynes

Yoshida, Hiroto,Morishita, Takami,Ohshita, Joji

supporting information; experimental part, p. 3845 - 3847 (2009/05/31)

(Chemical Equation Presented) CO2 was found to be directly convertible into anthranilic acid derivatives of great synthetic value through a three-component coupling using arynes and amines. Zwitterions arising from nucleophilic attack of amines to arynes serve as key intermediates in the coupling.

Decomposition of 2-dialkylaminobenzoyl azides to yield isocyanates and 1,1 -dialky lindazol-1-ium-3-olates

Waldron, Norman M.,Raza, Muhammad

, p. 271 - 276 (2007/10/03)

Substituted benzoyl azides normally yield the correspondingly substituted isocyanates but when a dialkylated amino group is in the 2-position, in addition to the isocyanate, the 1,1-dialkylated indazol-1-ium-3-olate is produced. The ratio of the two products is very variable depending upon the substitution in the benzene ring. Largest yields of the zwitterionic products were found when there was a substituent in the 3-position regardless of whether the substituent was electron-donating or -withdrawing.

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