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1311144-34-9

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1311144-34-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1311144-34-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,1,1,4 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1311144-34:
(9*1)+(8*3)+(7*1)+(6*1)+(5*1)+(4*4)+(3*4)+(2*3)+(1*4)=89
89 % 10 = 9
So 1311144-34-9 is a valid CAS Registry Number.

1311144-34-9Downstream Products

1311144-34-9Relevant articles and documents

Novel Vilsmeier-type methylenation for synthesis of dipyrazolylmethane derivatives using formamide or N-methylformamide

Wong, Fung Fuh,Huang, Yu-Ying

supporting information; experimental part, p. 3863 - 3867 (2011/06/21)

A novel Vilsmeier-type methylenation for synthesis of dipyrazolylmethanes was developed by reacting pyrazolones with formamide or N-methylformamide in the presence of phosphorous oxychloride POCl3 coupling agent. This method can efficiently provide a series of dipyrazolylmethane derivatives as the main products in excellent yields without the formylated products. Our experimental result was different with the classical Vilsmeier-type reaction.

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