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1,5-Bis(4-fluor-phenyl)-3-phenyl-pent-2-en-1,5-dion is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91231-90-2

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91231-90-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91231-90-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,2,3 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91231-90:
(7*9)+(6*1)+(5*2)+(4*3)+(3*1)+(2*9)+(1*0)=112
112 % 10 = 2
So 91231-90-2 is a valid CAS Registry Number.

91231-90-2Relevant academic research and scientific papers

Pyrylium Compounds. XXI. - Structure and Tautomerism of Pseudobases of Unsymmetrically Substituted 2,4,6-Triarylpyrylium Salts

Fischer, Gerhard W.,Herrmann, Michael

, p. 287 - 302 (2007/10/02)

Hydrolytic ring opening of unsymmetrically substituted 2,4,6-triarylpyrylium salts 11 results in a mixture of two tautomeric pseudobases, the penten-1,5-diones 13 and 14.In crystalline state as a rule one of these tautomers markedly predominates, whereas

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