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5-Oxo-3,4,5-triphenyl-pentanoic acid hydroxyamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

85503-41-9

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85503-41-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85503-41-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,5,0 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 85503-41:
(7*8)+(6*5)+(5*5)+(4*0)+(3*3)+(2*4)+(1*1)=129
129 % 10 = 9
So 85503-41-9 is a valid CAS Registry Number.

85503-41-9Relevant academic research and scientific papers

Preparation and Reactions of 3,4-Dihydro-2H-pyran-2-ones

El-Kholy, Ibrahim El-Sayed,Mishrikey, Morcos Michael,Abdoul-Ela, Salah Loutfi

, p. 1329 - 1334 (2007/10/02)

The Michael reaction of ethyl cinnamates with deoxybenzoin gave ethyl 3,4,5-triaryl-5-oxopentanoates which were hydrolysed to the corresponding acids.The latter could be cyclized to the respective 3,4-dihydro-2H-pyran-2-ones which underwent ring opening w

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