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1,5-Dimethyl-3-phenylethynyl-1H-pyrazole-4-carboxylic acid amide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

133053-65-3

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133053-65-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133053-65-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,0,5 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 133053-65:
(8*1)+(7*3)+(6*3)+(5*0)+(4*5)+(3*3)+(2*6)+(1*5)=93
93 % 10 = 3
So 133053-65-3 is a valid CAS Registry Number.

133053-65-3Relevant academic research and scientific papers

CYCLIZATION OF VICINAL ACETYLENIC DERIVATIVES OF PYRAZOLECARBONAMIDES AND BENZAMIDES

Vasilevskii, S. F.,Shvartsberg, M. S.

, p. 1901 - 1905 (1990)

Vicinal acetylenic derivatives of pyrazolecarbonamides and benzamides cyclize in alcoholic solution in the presence of KOH with closure of the six- or five-membered lactam ring.The formation of γ-lactam (from o-phenylethynylbenzamide) has been noted for t

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