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127662-21-9

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127662-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 127662-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,6,6 and 2 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 127662-21:
(8*1)+(7*2)+(6*7)+(5*6)+(4*6)+(3*2)+(2*2)+(1*1)=129
129 % 10 = 9
So 127662-21-9 is a valid CAS Registry Number.

127662-21-9Relevant articles and documents

Inverse-Electron-Demand [4+2]-Cycloaddition of 1,3,5-triazinanes: Facile Approaches to Tetrahydroquinazolines

Zheng, Yongsheng,Tu, Liang,Li, Na,Huang, Rong,Feng, Tao,Sun, Huan,Li, Zhenghui,Liu, Jikai

, p. 44 - 48 (2019)

An unprecedented inverse-electron-demand [4+2] cycloaddition reaction of in situ generated aza-o-quinone methides with 1,3,5-triazinanes has been developed under mild conditions, providing an efficient and mild approach to synthesize tetrahydroquinazoline

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