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2-[5-(4-Methoxy-phenyl)-1-phenyl-1H-pyrazol-3-yl]-5-methyl-phenol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81902-10-5

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81902-10-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81902-10-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,0 and 2 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 81902-10:
(7*8)+(6*1)+(5*9)+(4*0)+(3*2)+(2*1)+(1*0)=115
115 % 10 = 5
So 81902-10-5 is a valid CAS Registry Number.

81902-10-5Downstream Products

81902-10-5Relevant academic research and scientific papers

Reaction of 3-Iodoflavanones with Hydrazine Hydrate & Phenylhydrazine: Synthesis of Pyrazoles

Joshi, M. G.,Wadokar, K. N.

, p. 1089 - 1090 (2007/10/02)

3-Iodoflavanones (IIa-d), obtained from 2'-hydroxy-4-methoxychalkones and ICl in acetic acid, when reacted with N2H4 * H2O in ethanol at room temperature give 3,5-diarylpyrazoles (IIIa-d) while with C6H5NH-NH2 * HCl in pyridine, 3,5-diaryl-1-phenylpyrazoles (IVa-d) are obtained.The identity of III and IV has been confirmed by independent and unambiguous synthesis of these pyrazoles from 2-hydroxydibenzoylmethanes.

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