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1224730-53-3

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1224730-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1224730-53-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,4,7,3 and 0 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1224730-53:
(9*1)+(8*2)+(7*2)+(6*4)+(5*7)+(4*3)+(3*0)+(2*5)+(1*3)=123
123 % 10 = 3
So 1224730-53-3 is a valid CAS Registry Number.

1224730-53-3Relevant articles and documents

Efficient routes to pyrazolo[3,4-e][1,2,4]triazines and a new ring system: [1,2,4]triazino[5,6-d][1,2,3]triazines

Al-Matar, Hamad Mohamed,Khalil, Khaled Dessouky,Al-Dorri, Doa'A Mohamed,Elnagdi, Mohamed Helmy

experimental part, p. 3302 - 3310 (2010/09/15)

Arylhydrazonomalononitriles 1a,b react with Phenylhydrazine to yield amidrazones 2a,b that cyclize to give 2-aryl-5-phenylhydrazono-2,5-dihydro-[1,2, 4]-triazine-6-carbonitriles 5a,b upon reaction with dimethylformamide dimethylacetal (DMFDMA). Refluxing 5a,b in glacial acetic acid resulted in the formation of the pyrazolo-1,2,4-triazines 6a,b. Compounds 6a,b were also formedupon treatment of 3-amino-4-phenylhydrazono-1-phenyl-2-pyrazolin-5-ones 7a,b with DMFDMA. Reacting these triazinyl arylhydrazononitriles 5a,b with hydroxylamine hydrochloride in ethanolic sodium acetate afforded amidrazones 8a,b that are readily cyclized in refluxing dimethylformamide into [1,2,4]triazino[1,2,3]triazines 10a,b.

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