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1496458-21-9

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1496458-21-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1496458-21-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,9,6,4,5 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1496458-21:
(9*1)+(8*4)+(7*9)+(6*6)+(5*4)+(4*5)+(3*8)+(2*2)+(1*1)=209
209 % 10 = 9
So 1496458-21-9 is a valid CAS Registry Number.

1496458-21-9Relevant articles and documents

Oxidative Sulfonylation of Hydrazones Enabled by Synergistic Copper/Silver Catalysis

Xu, Jun,Shen, Chao,Qin, Xian,Wu, Jie,Zhang, Pengfei,Liu, Xiaogang

, p. 3706 - 3720 (2021/02/05)

A copper/silver-cocatalyzed protocol for oxidative sulfonylation of hydrazones is demonstrated. A wide range of β-ketosulfones and N-acylsulfonamides are directly synthesized in moderate to good yields. Our work provides a viable method for scalable preparation of β-ketosulfone derivatives that have found wide applications in the pharmaceutical industry.

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