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3H-Pyrazol-3-one, 2,4-dihydro-4-(1-iminoethyl)-5-methyl-2-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128256-47-3

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128256-47-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128256-47-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,2,5 and 6 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128256-47:
(8*1)+(7*2)+(6*8)+(5*2)+(4*5)+(3*6)+(2*4)+(1*7)=133
133 % 10 = 3
So 128256-47-3 is a valid CAS Registry Number.

128256-47-3Relevant academic research and scientific papers

Synthesis and reactions of 2-amino-6-(3-methyl-5-oxo-1-phenyl-2-pyrazolin-4-yl)-4-phenylpyridine-3- carbonitrile

Ahmed,Kandeel,Abbady,Youssef

, p. 309 - 314 (2002)

2-Amino-6-(3-methyl-5-oxo-1-phenyl-2-pyrazolin-4-yl)-4-phenylpyridine-3- carbonitrile (1) obtained by the reaction of 4-(1-iminoethyl)-3-methyl-1-phenyl-2-pyrazolin-5-one with benzylidenemalononitrile, was reacted with triethyl orthoformate followed by hydrazine hydrate, acetic anhydride, acetyl chloride, alkyl halides, benzoyl chloride, sulphuric acid followed by formamide, phenyl isothiocyanate, carbon disulphide followed by ethyl iodide, formamide, trichloroacetonitrile, nitrous acid, giving new oxopyrazolinylpyridines (2,3,5,6,8,9,10) and related pyridopyrimidines (11-17) and pyridotriazine (18).

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