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3-Isoxazolecarboxylic acid, 5-methyl-4-[[[4-(trifluoromethyl)phenyl]amino]carbonyl]-, ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

134889-01-3

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134889-01-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 134889-01-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,4,8,8 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 134889-01:
(8*1)+(7*3)+(6*4)+(5*8)+(4*8)+(3*9)+(2*0)+(1*1)=153
153 % 10 = 3
So 134889-01-3 is a valid CAS Registry Number.

134889-01-3Relevant academic research and scientific papers

3-Carboxy-5-methyl-N-[4-(trifluoromethyl)phenyl]-4-isoxazolecarboxamide, a new prodrug for the antiarthritic agent 2-cyano-3-hydroxy-N-[4- (trifluoromethyl)phenyl]-2-butenamide

Patterson,Cheung,Ernest

, p. 507 - 510 (1992)

The title compound 3-carboxyisoxazole 3 was synthesized by cycloaddition of carbethoxyformonitrile oxide to N-[4-(trifluoromethyl)phenyl]-3- pyrrolidino-2-butenamide (6) with spontaneous elimination of pyrrolidine followed by hydrolysis of the ethyl ester

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