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37551-50-1

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37551-50-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 37551-50-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,7,5,5 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 37551-50:
(7*3)+(6*7)+(5*5)+(4*5)+(3*1)+(2*5)+(1*0)=121
121 % 10 = 1
So 37551-50-1 is a valid CAS Registry Number.

37551-50-1Downstream Products

37551-50-1Relevant articles and documents

A convenient and efficient H2SO4-promoted regioselective monobromination of phenol derivatives using N-bromosuccinimide

Wu, Yong-Qi,Lu, Hai-Jia,Zhao, Wen-Ting,Zhao, Hong-Yi,Lin, Zi-Yun,Zhang, Dong-Feng,Huang, Hai-Hong

, p. 813 - 822 (2020)

A convenient, rapid H2SO4-promoted regioselective monobromination reaction with N-bromosuccinimide was developed. The desired para-monobrominated or ortho-monobrominated products of phenol derivatives were obtained in good to excellent yields with high selectivity. Regioselective chlorination and iodination were also achieved in the presence of H2SO4 using N-chlorosuccinimide and N-iodosuccinimide, respectively.

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