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1,1-dimethyl-2,5-dioxo-4-phenyl-1,4-dihydro-2H,5H-pyrano<3,4-c><1>benzopyran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

114873-95-9

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114873-95-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 114873-95-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,4,8,7 and 3 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 114873-95:
(8*1)+(7*1)+(6*4)+(5*8)+(4*7)+(3*3)+(2*9)+(1*5)=139
139 % 10 = 9
So 114873-95-9 is a valid CAS Registry Number.

114873-95-9Downstream Products

114873-95-9Relevant academic research and scientific papers

Thermal Transformations of Some 3-Acyl-2-oxo-2H-1-benzopyrans with Acid Anhydrides

Bojilova, Anka,Ivanov, Christo

, p. 731 - 735 (2007/10/02)

The reaction of 3-benzoyl- and 3-acetyl-2-oxo-2H-1-benzopyrans (4 and 5) with acid anhydrides in the presence of sodium acetate or triethylamine has been studied.With propionic, butyric and isobutyric acid anhydrides, 4 affords the rearrangement products 6 and 7, dilactones (8) and benzyl esters (9), whereas with acetic anhydride 6a, 10, 11 and 12 are obtained.The reaction of 5 with acetic and propionic acid anhydrides affords 6e, 8f and 9f.Conversion of 9c into different products under acidic conditions has also been studied.

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