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1286990-00-8

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1286990-00-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1286990-00-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,6,9,9 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1286990-00:
(9*1)+(8*2)+(7*8)+(6*6)+(5*9)+(4*9)+(3*0)+(2*0)+(1*0)=198
198 % 10 = 8
So 1286990-00-8 is a valid CAS Registry Number.

1286990-00-8Relevant articles and documents

Practical Electro-Oxidative Sulfonylation of Phenols with Sodium Arenesulfinates Generating Arylsulfonate Esters

Tian, Zhibin,Gong, Qihang,Huang, Tianzeng,Liu, Long,Chen, Tieqiao

, p. 15914 - 15926 (2021/05/04)

A practical and sustainable synthesis of arylsulfonate esters has been developed through electro-oxidation. This reaction employed the stable and readily available phenols and sodium arenesulfinates as the starting materials and took place under mild reaction conditions without additional oxidants. A wide range of arylsulfonate esters including those bearing functional groups were produced in good to excellent yields. This reaction could also be conducted at a gram scale without a decrease of reaction efficiency. Those results well demonstrated the potential synthetic value of this reaction in organic synthesis.

A PROCESS FOR PREPARING BENZO[B]THIOPHENE DERIVATIVES

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Page/Page column 44, (2011/05/06)

The present invention relates in general to the field of organic chemistry, and in particular to the preparation of benzo[b]thiophene derivatives. These benzo[b]thiophene derivatives are useful as intermediates in the synthesis of pharmaceutically active agents such as raloxifene or derivatives thereof.

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