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2,4-dioxo-4-phenyl-3-phenylhydrazono-butyric acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

147671-18-9

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147671-18-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 147671-18-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,6,7 and 1 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 147671-18:
(8*1)+(7*4)+(6*7)+(5*6)+(4*7)+(3*1)+(2*1)+(1*8)=149
149 % 10 = 9
So 147671-18-9 is a valid CAS Registry Number.

147671-18-9Relevant academic research and scientific papers

FIVE-MEMBERED 2,3-DIOXOHETEROCYCLES. XXIII. SYNTHESIS OF 1-ARYL-3-AROYL-4,5-DIHYDRO-4,5-PYRAZOLEDIONES AND THEIR REACTION WITH WATER AND ALCOHOLS

Pimenova, E. V.,Andreichikov, Yu. S.

, p. 302 - 315 (2007/10/02)

4-Aroyl-3-arylhydrazono-2,4-dioxobutyric acids were obtained by the azo coupling of aroylpyruvic acids with arenediazonium salts. Under the influence of thionyl chloride (benzene, 78 deg C, 1.5-4h) they undergo cyclization to 1-aryl-3-aroyl-4,5-dihydro-4,

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