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486994-31-4

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486994-31-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 486994-31-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,6,9,9 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 486994-31:
(8*4)+(7*8)+(6*6)+(5*9)+(4*9)+(3*4)+(2*3)+(1*1)=224
224 % 10 = 4
So 486994-31-4 is a valid CAS Registry Number.

486994-31-4Downstream Products

486994-31-4Relevant articles and documents

Autoxidation/Aldol Tandem Reaction of 2-Oxindoles with Ketones: A Green Approach for the Synthesis of 3-Hydroxy-2-Oxindoles

Zhang, Qing-Bao,Jia, Wen-Liang,Ban, Yong-Liang,Zheng, Yong,Liu, Qiang,Wu, Li-Zhu

, p. 2595 - 2598 (2016/02/27)

In the presence of tetrabutylammonium fluoride and molecular sieves (MS) 4 ? in DMF, an efficient autoxidation reaction of 2-oxindoles with ketones under air at room temperature has been developed. This approach may provide a green, practical, and metal-free protocol for a wide range of biologically important 3-hydroxy-3-(2-oxo-alkyl)-2-oxindoles.

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