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3-(4-Methoxy-benzenesulfonyl)-2-oxo-4,4-diphenyl-butyric acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

91173-69-2

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91173-69-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91173-69-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,1,7 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91173-69:
(7*9)+(6*1)+(5*1)+(4*7)+(3*3)+(2*6)+(1*9)=132
132 % 10 = 2
So 91173-69-2 is a valid CAS Registry Number.

91173-69-2Downstream Products

91173-69-2Relevant academic research and scientific papers

CHEMISTRY OF OXALYL DERIVATIVES OF METHYL KETONES. XXXVI. REACTION OF DIPHENYLDIAZOMETHANE WITH ARYLSULFONYLPYRUVIC ESTERS

Andreichikov, Yu.S.,Gein, V.L.,Shapet'ko, N.N.

, p. 757 - 762 (2007/10/02)

Diphenyldiazomethane reacts with arylsulfonylpyruvic esters, forming O-alkylation products, oxetanes, and 1,3-dioxolanes.The thermal rearrangement of the O-alkylation products into ethyl 2-oxo-3-(arylsulfonyl)-4,4-diphenylbutyrates was discovered.

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