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1440429-84-4

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1440429-84-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1440429-84-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,0,4,2 and 9 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1440429-84:
(9*1)+(8*4)+(7*4)+(6*0)+(5*4)+(4*2)+(3*9)+(2*8)+(1*4)=144
144 % 10 = 4
So 1440429-84-4 is a valid CAS Registry Number.

1440429-84-4Relevant academic research and scientific papers

Thermal induced intramolecular [2 + 2] cycloaddition of allene-ACPs

Chen, Kai,Sun, Run,Xu, Qin,Wei, Yin,Shi, Min

supporting information, p. 3949 - 3953 (2013/07/05)

A facile synthetic method for preparation of bicyclo[4.2.0] nitrogen heterocycles has been developed via a thermal induced intramolecular [2 + 2] cycloaddition reaction of allene-ACPs. The DFT calculations indicate that this intramolecular cycloaddition proceeds in a concerted manner and a strained small ring is essential. The Royal Society of Chemistry 2013.

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