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144080-41-1

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144080-41-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144080-41-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,0,8 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 144080-41:
(8*1)+(7*4)+(6*4)+(5*0)+(4*8)+(3*0)+(2*4)+(1*1)=101
101 % 10 = 1
So 144080-41-1 is a valid CAS Registry Number.

144080-41-1Relevant articles and documents

Preheated fly-ash catalyzed aldol condensation: Efficient synthesis of chalcones and antimicrobial activities of some 3-thienyl chalcones

Arulkumaran, Ranganathan,Vijayakumar, Sambandhamoorthy,Sakthinathan, S. Pazhanivel,Kamalakkannan, Dakshnamoorthy,Ranganathan, Kaliyaperumal,Suresh, Ramamoorthy,Sundararajan, Rajasekaran,Vanangamudi, Ganesan,Thirunarayanan, Ganesamoorthy

, p. 1684 - 1690 (2013)

In the present study we have prepared a series of some chalcones using solvent - free Aldol - condensation by microwave irradiation. The yields of the ketones are more than 60%. The synthesised chalcones were characterized by their analytical, physical and spectral data. The antimicrobial activities of substituted styryl 3-thienyl ketones have been studied using Bauer-Kirby method.

Unexpected lactonization accompanying addition of ethyl acetoacetate to chalcones derived from 3-acetylthiophene

Budak, Yakup,Findik, Esra

scheme or table, p. 1255 - 1261 (2012/01/03)

Chalcone derivatives containing thiophene ring were prepared by the condensation of 3-acetylthiophene with aromatic aldehydes in excellent yields. The addition of ethyl acetoacetate to chalcone derivatives 3a-3h in the presence of solid NaOH in CH2Cl2 resulted in the formation of the mixture of bicyclic lactone derivatives 5a-5h and 6-(ethoxycarbonyl) cyclohexenone derivatives 6a-6h.

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