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1040402-56-9

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1040402-56-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1040402-56-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,4,0 and 2 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1040402-56:
(9*1)+(8*0)+(7*4)+(6*0)+(5*4)+(4*0)+(3*2)+(2*5)+(1*6)=79
79 % 10 = 9
So 1040402-56-9 is a valid CAS Registry Number.

1040402-56-9Downstream Products

1040402-56-9Relevant articles and documents

Three-component coupling using arynes and aminosilanes for ortho-selective double functionalization of aromatic skeletons

Morishita, Takami,Fukushima, Hiroyuki,Yoshida, Hiroto,Ohshita, Joji,Kunai, Atsutaka

, p. 5452 - 5457 (2008/12/20)

(Chemical Equation Presented) Arynes were found to couple with aminosilanes and carbonyl compounds in the presence of benzoic acid to provide 2-aminobenzhydrols. Sulfonylimines could also be applied to the reaction, enabling amino and aminomethyl moieties to be incorporated into contiguous positions of aromatic skeletons. Only a small amount of the three-component coupling product was obtained in the absence of benzoic acid, which confirms its vital role in the present reaction.

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