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1257976-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257976-34-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,9,7 and 6 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1257976-34:
203 % 10 = 3
So 1257976-34-3 is a valid CAS Registry Number.

1257976-34-3Relevant articles and documents

Synthesis and evaluation of pyrazolone compounds as SARS-coronavirus 3C-like protease inhibitors

Ramajayam,Tan, Kian-Pin,Liu, Hun-Ge,Liang, Po-Huang

experimental part, p. 7849 - 7854 (2011/02/23)

A series of pyrazolone compounds as possible SARS-CoV 3CL protease inhibitors were designed, synthesized, and evaluated by in vitro protease assay using fluorogenic substrate peptide in which several showed potent inhibition against the 3CL protease. Interestingly, one of the inhibitors was also active against 3C protease from coxsackievirus B3. These inhibitors could be potentially developed into anti-coronaviral and anti-picornaviral agents.

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