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4-(4-nitrophenyl)-2,4-dioxobutanoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

66328-67-4

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66328-67-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 66328-67-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,3,2 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 66328-67:
(7*6)+(6*6)+(5*3)+(4*2)+(3*8)+(2*6)+(1*7)=144
144 % 10 = 4
So 66328-67-4 is a valid CAS Registry Number.

66328-67-4Upstream product

66328-67-4Relevant academic research and scientific papers

Furan-2,3-diones as masked dipoles: synthesis of isotetronic acids and mechanistic considerations

Barbier, Vincent,Couty, Fran?ois,David, Olivier R.P.

, p. 5646 - 5651 (2016/08/17)

The formal dipolar behaviour of furan-2,3-diones is illustrated by their reaction with ethyl glyoxylate under Lewis basic activation uniquely, giving access to isotetronic derivatives. The Janus-type nature of the activated species, both nucleophilic and

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