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3-p-nitrophenylbut-3-enoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

87931-46-2

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87931-46-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87931-46-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,9,3 and 1 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 87931-46:
(7*8)+(6*7)+(5*9)+(4*3)+(3*1)+(2*4)+(1*6)=172
172 % 10 = 2
So 87931-46-2 is a valid CAS Registry Number.

87931-46-2Relevant academic research and scientific papers

Studies in Decarboxylation. Part 16. Steric Inhibition of Resonance in a 1,5-Sigmatropic Reaction

al-Borno, Amal,Bigley, David B.

, p. 1311 - 1312 (1983)

The rates of gas-phase decarboxylation of some 3-phenyl-substituted but-3-enoic acids are best rationalized in terms of steric inhibition of resonance in the more sterically crowded members.

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