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1-(4-isopropylphenyl)-3-methyl-4,5-dihydropyrazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1033725-91-5

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1033725-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1033725-91-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,3,7,2 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1033725-91:
(9*1)+(8*0)+(7*3)+(6*3)+(5*7)+(4*2)+(3*5)+(2*9)+(1*1)=125
125 % 10 = 5
So 1033725-91-5 is a valid CAS Registry Number.

1033725-91-5Relevant academic research and scientific papers

Zinc-catalyzed synthesis of pyrazolines and pyrazoles via hydrohydrazination

Alex, Karolin,Tillack, Annegret,Schwarz, Nicolle,Beller, Matthias

, p. 2377 - 2379 (2008)

(Chemical Equation Presented) A novel regioselective synthesis of aryl-substituted pyrazolines and pyrazoles has been developed. Substituted phenylhydrazines react with 3-butynol in the presence of a catalytic amount of zinc triflate to give pyrazoline derivatives. The resulting products are easily oxidized in a one-pot procedure to the corresponding pyrazoles.

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