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1443005-79-5

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1443005-79-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1443005-79-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,0,0 and 5 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1443005-79:
(9*1)+(8*4)+(7*4)+(6*3)+(5*0)+(4*0)+(3*5)+(2*7)+(1*9)=125
125 % 10 = 5
So 1443005-79-5 is a valid CAS Registry Number.

1443005-79-5Relevant academic research and scientific papers

Metal-free oxidation/C(sp3)iH functionalization of unactivated alkynes using pyridine-N-oxide as the external oxidant

Chen, Dian-Feng,Han, Zhi-Yong,He, Yu-Ping,Yu, Jie,Gong, Liu-Zhu

, p. 12307 - 12310 (2013/02/22)

Externally yours: 2,3-Dihydroquinolin-4(1H)-ones are obtained in moderate to good yields (40-84 %, see scheme) in a metal-free oxidation/C(sp 3)iH functionalization of unactivated aryl alkynes. 2,6-Dichloropyridine-N-oxide is used as an external oxidant. In the reaction, a Bronsted acid, not a metal, plays a key role in the triple CiC bond activation. Copyright

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