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N-ethoxycarbonyl-N'-(5-phenyl-1,3,4-oxadiazol-2-yl)urea is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

133712-77-3

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133712-77-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133712-77-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,7,1 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133712-77:
(8*1)+(7*3)+(6*3)+(5*7)+(4*1)+(3*2)+(2*7)+(1*7)=113
113 % 10 = 3
So 133712-77-3 is a valid CAS Registry Number.

133712-77-3Relevant academic research and scientific papers

Oxadiazole Condensed Ring Systems, II : Synthesis of New 2-Aryl-1,3,4-oxadiazolo-s-triazine-5,7(6H)-diones

Hassan, Ahmed M. M.,Badawey, El-Sayed A. M.

, p. 43 - 46 (2007/10/02)

The syntheses of 1,3,4-oxadiazolo-s-triazine-5,7(6H)-diones 4 through the condensation of 2-amino-5-aryl-1,3,4-oxadiazoles 1 with ethoxycarbonyl isocyanate 2 is described.Methylation of 4b with trimethyl phosphate yielded the N-methyl derivative 5.

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