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77245-15-9

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77245-15-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77245-15-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,2,4 and 5 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77245-15:
(7*7)+(6*7)+(5*2)+(4*4)+(3*5)+(2*1)+(1*5)=139
139 % 10 = 9
So 77245-15-9 is a valid CAS Registry Number.

77245-15-9Downstream Products

77245-15-9Relevant articles and documents

Michael Reactions of β-(2,4-Dimethylbenzoyl)- and β-(ar-2-Tetroyl)-acrylic Acids and their Amides

Salem, M. A. I.,Hassan, M. A.,Guber, A. M.

, p. 269 - 271 (2007/10/02)

β-(2,4-Dimethylbenzoyl)- and β-(ar-2-tetroyl)-acrylic acids (I and II) react under Michael conditions with diethylmalonate, ethylphenylacetate, ethyl acetoacetate and benzyl methyl ketone to give cyclic (IX,X) or normal Michael addition products (III, IV)

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