Cas 77588-77-3,6-Phenyl-3-(2-thienyl)-4-pyridazincarbonsaeure-ethylester

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Check Digit Verification of cas no

The CAS Registry Mumber 77588-77-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,8 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 77588-77:
(7*7)+(6*7)+(5*5)+(4*8)+(3*8)+(2*7)+(1*7)=193
193 % 10 = 3
So 77588-77-3 is a valid CAS Registry Number.

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77588-77-3Relevant academic research and scientific papers

Addition of Aldehydes to Activated Double Bonds, XXV. Syntheses and Reactions of Branched Tricarbonyl Compounds

Stetter, Hermann,Jonas, Friedrich

, p. 564 - 580 (2007/10/02)

Thiazolium salt-catalyzed addition of aldehydes to arylidene- and alkylidene-β-dicarbonyl compounds as well as to 3-acylacrylic esters leads to branched tricarbonyl compounds (1 - 26), which are useful reagents for the synthesis of heterocyclic compounds.

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