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137280-46-7

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137280-46-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137280-46-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,2,8 and 0 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 137280-46:
(8*1)+(7*3)+(6*7)+(5*2)+(4*8)+(3*0)+(2*4)+(1*6)=127
127 % 10 = 7
So 137280-46-7 is a valid CAS Registry Number.

137280-46-7Downstream Products

137280-46-7Relevant articles and documents

Catalyst-free sulfenylation of indoles with sulfinic esters in ethanol

Yang, Xiuqin,Bao, Yishu,Dai, Zonghao,Zhou, Qingfa,Yang, Fulai

supporting information, p. 3727 - 3731 (2018/08/21)

A novel catalyst-free method for the synthesis of structurally diverse indole thioethers in moderate to excellent yields has been developed. In this reaction, sulfinic esters serve as new sulfur electrophiles.

NMR of Terminal Oxygen, 6 - 17O NMR of the S-O 'Double Bond': Derivatives of Arylsulphinic and Arylsulphonic Acids

Dahn, Hans,Toan, Vien Van,Ung-Truong, My-Ngoc

, p. 897 - 903 (2007/10/02)

The 17O NMR spectra of terminal oxygen atoms in esters, anions and amides of substituted arenesulphinic acids and in esters and amides of substituted arenesulphonic acids were measured.The signals of the terminal O appear close to those of the bridge O.Co

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