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923757-23-7

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923757-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 923757-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,2,3,7,5 and 7 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 923757-23:
(8*9)+(7*2)+(6*3)+(5*7)+(4*5)+(3*7)+(2*2)+(1*3)=187
187 % 10 = 7
So 923757-23-7 is a valid CAS Registry Number.

923757-23-7Upstream product

923757-23-7Relevant articles and documents

Interaction of 3-(2-Aminophenyl)-6-R1-1,2,4-triazin-5-ones with Acylating Reagents: An Efficient Method for Preparation of 6-Substituted 3-R1-2H-[1,2,4]triazino[2,3-c]quinazolin-2-ones

Voskoboynik, Alexey Yu.,Scorina, Dmitriy Yu.,Sergeieva, Tetiana Yu.,Kovalenko, Sergiy I.,Okovytyy, Sergiy I.,Omelchenko, Irina V.,Shishkin, Oleg V.

, p. 776 - 783 (2016/05/19)

The series of 6-substituted 3-R1-2H-[1,2,4]triazino[2,3-c]quinazolin-2-one was prepared via condensation of 3-(2-aminophenyl)-6-R1-1,2,4-triazin-5-ones with acylating reagents. Particularities of 1H NMR spectra have been also discussed based on the comparison of experimental and theoretical results for 3-methyl-6-phenyl-2H-[1,2,4]triazino[2,3-c]quinazolin-2-one and its 4,3-isomer.

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