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199657-02-8

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199657-02-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199657-02-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,6,5 and 7 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 199657-02:
(8*1)+(7*9)+(6*9)+(5*6)+(4*5)+(3*7)+(2*0)+(1*2)=198
198 % 10 = 8
So 199657-02-8 is a valid CAS Registry Number.

199657-02-8Relevant articles and documents

Modulation of photochemical oxidation of thioethers to sulfoxides or sulfones using an aromatic ketone as the photocatalyst

Zhao, Bin,Hammond, Gerald B.,Xu, Bo

supporting information, (2021/09/13)

We have developed an eco-friendly and chemo-selective photocatalytic synthesis of sulfoxides or sulfones via oxidation of sulfides (thioethers) at ambient temperature using air or O2 as the oxidant. An inexpensive thioxanthone was used as the photocatalyst. Our method offers excellent chemical yields and good functional group tolerance. The hydrogen bonding between hexafluoro-2-propanol (HFIP) and sulfoxides may play an important role in minimizing the over-oxidization of sulfoxides.

INDOLE DERIVATIVE USED AS CRTH2 INHIBITOR

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, (2019/06/07)

The present application discloses an indole as represented by formula (I) used as a CRTH2 inhibitor, and a pharmaceutically acceptable salt or tautomer of the indole, and an application of same in treating a disease related to a CRTH2 receptor.

1,2,5-THIAZOLIDINE DERIVATIVES USEFUL FOR TREATING CONDITIONS MEDIATED BY PROTEIN TYROSINE PHOSPHATASES (PTPASE)

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Page/Page column 53-54, (2010/11/27)

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