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1607800-22-5

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1607800-22-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1607800-22-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,7,8,0 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1607800-22:
(9*1)+(8*6)+(7*0)+(6*7)+(5*8)+(4*0)+(3*0)+(2*2)+(1*2)=145
145 % 10 = 5
So 1607800-22-5 is a valid CAS Registry Number.

1607800-22-5Relevant articles and documents

RE12 derivatives displaying Vaccinia H1-related phosphatase (VHR) inhibition in the presence of detergent and their anti-proliferative activity against HeLa cells

Thuaud, Frederic,Kojima, Shuntaro,Hirai, Go,Oonuma, Kana,Tsuchiya, Ayako,Uchida, Takako,Tsuchimoto, Teruhisa,Sodeoka, Mikiko

, p. 2771 - 2782 (2014/05/06)

New derivatives of Vaccinia H1-related phosphatase (VHR) inhibitor RE12 (5) were designed by replacing the long straight alkyl chain with other hydrophobic functionalities containing two aromatic rings, with the aim of obtaining potent, cell-active inhibitors. We established a direct coupling reaction between tetronic acid derivative and thioimidate to prepare the RE derivatives 6a-6i efficiently. These compounds all showed VHR-inhibitory activity in the presence of 0.001% NP-40, whereas RE12 (5) was inactive under this condition, even at 100 μM. Further structure-activity studies focused on terminal substitution afforded trifluoromethyl derivative 6k (RE176) and nitro derivative 6l (RE177). The IC50 value of 6l in the presence of NP-40 was almost equivalent to that of RE12 (5) in its absence. Compound 6k (RE176) potently inhibited proliferation of HeLa cells.

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