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C25H19ClN2O2 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1031691-20-9

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1031691-20-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1031691-20-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,1,6,9 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1031691-20:
(9*1)+(8*0)+(7*3)+(6*1)+(5*6)+(4*9)+(3*1)+(2*2)+(1*0)=109
109 % 10 = 9
So 1031691-20-9 is a valid CAS Registry Number.

1031691-20-9Relevant academic research and scientific papers

Synthesis and crystal structure of 1,3-disubstituted-2-propyleno-1-one containing pyrazole moiety

Zhou,Wu,Liu, Fang-Ming

, p. 449 - 452 (2011)

A series of novel 1,3-disubstituted-2-propyleno-1-one derivatives containing pyrazole ring were synthesized and characterized by IR, MS, H1NMR and elemental analysis. The structure of C25H20N 2O2 (3a) was determ

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