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141939-07-3

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141939-07-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 141939-07-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,1,9,3 and 9 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 141939-07:
(8*1)+(7*4)+(6*1)+(5*9)+(4*3)+(3*9)+(2*0)+(1*7)=133
133 % 10 = 3
So 141939-07-3 is a valid CAS Registry Number.

141939-07-3Relevant articles and documents

An unprecedented protocol for the synthesis of 3-hydroxy-3-phenacyloxindole derivatives with indolin-2-ones and α-substituted ketones

Bai, Mei,You, Yong,Chen, Yong-Zheng,Xiang, Guang-Yan,Xu, Xiao-Ying,Zhang, Xiao-Mei,Yuan, Wei-Cheng

, p. 1395 - 1401 (2016/02/03)

An unprecedented reaction between indolin-2-ones and α-substituted ketones has been developed. Using this protocol, a wide range of biologically important 3-hydroxy-3-phenacyloxindole derivatives could be obtained in good yield (up to 93%) under mild reaction conditions. A possible mechanism of this reaction was tentatively proposed based on some control experiments and MS spectrometry analysis.

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