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140196-57-2

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140196-57-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140196-57-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,1,9 and 6 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 140196-57:
(8*1)+(7*4)+(6*0)+(5*1)+(4*9)+(3*6)+(2*5)+(1*7)=112
112 % 10 = 2
So 140196-57-2 is a valid CAS Registry Number.

140196-57-2Relevant articles and documents

Expedient solid-phase synthesis of both symmetric and asymmetric diol libraries targeting aspartic proteases

Shi, Haibin,Liu, Kai,Leong, Wendy W.Y.,Yao, Shao Q.

supporting information; experimental part, p. 3945 - 3948 (2010/03/30)

C2-symmetric diols have been shown to be highly potent against HIV-1 protease (PR). However, gaining access to these compounds has been hampered by the need of multistep solution-phase reactions which are often tedious and inefficient. In this Letter, we have disclosed a solid-phase strategy for rapid preparation of small molecule-based, symmetric and asymmetric diols as potential HIV-1 protease inhibitors. Upon biological screening, we found one of them, SYM-5, to be a potent and selective inhibitor (Ki = 400 nM) against HIV-1 protease.

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