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663923-69-1

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663923-69-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 663923-69-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,9,2 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 663923-69:
(8*6)+(7*6)+(6*3)+(5*9)+(4*2)+(3*3)+(2*6)+(1*9)=191
191 % 10 = 1
So 663923-69-1 is a valid CAS Registry Number.

663923-69-1Downstream Products

663923-69-1Relevant articles and documents

New cyanopeptide-derived low molecular weight inhibitors of trypsin-like serine proteases

Radau, Gregor,Schermuly, Sonja,Fritsche, Alexandra

, p. 300 - 309 (2007/10/03)

This paper deals with the design, syntheses, and inhibition tests of new low molecular weight thrombin inhibitors utilizing cyanopeptides, the secondary metabolites of cyanobacteria with interesting biological activities, as new lead structures. Starting with aeruginosin 98-B (1) as a lead structure, we have developed and synthesised new, selective acting inhibitors of serine proteases (RA-1005 and RA-1009), which are suitable targets for further structure-activity studies.

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