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766557-54-4

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766557-54-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 766557-54-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,6,6,5,5 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 766557-54:
(8*7)+(7*6)+(6*6)+(5*5)+(4*5)+(3*7)+(2*5)+(1*4)=214
214 % 10 = 4
So 766557-54-4 is a valid CAS Registry Number.

766557-54-4Relevant articles and documents

Active site inhibitors of HCV NS5B polymerase. The development and pharmacophore of 2-thienyl-5,6-dihydroxypyrimidine-4-carboxylic acid

Stansfield, Ian,Avolio, Salvatore,Colarusso, Stefania,Gennari, Nadia,Narjes, Frank,Pacini, Barbara,Ponzi, Simona,Harper, Steven

, p. 5085 - 5088 (2004)

The discovery of a simple 2-thienyl substituted 5,6-dihydroxypyrimidine-4- carboxylic acid active-site inhibitor of the HCV NS5B polymerase inhibitor is reported. Structure-activity relationships that led to an understanding of the pharmacophore around the pyrimidine ring is also described.

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