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203453-89-8

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203453-89-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203453-89-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,4,5 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 203453-89:
(8*2)+(7*0)+(6*3)+(5*4)+(4*5)+(3*3)+(2*8)+(1*9)=108
108 % 10 = 8
So 203453-89-8 is a valid CAS Registry Number.

203453-89-8Downstream Products

203453-89-8Relevant articles and documents

High-throughput synthesis and optimization of thrombin inhibitors via urazole α-addition and Michael addition

Boatman, P. Douglas,Urban, Jan,Nguyen, Minh,Qabar, Maher,Kahn, Michael

, p. 1445 - 1449 (2007/10/03)

A novel α-addition of propiolates to urazoles followed by Michael addition of a variety of nucleophiles has been developed for rapid production and optimization of peptidomimetic drug leads. This technology has produced a number of highly potent and selective inhibitors of the serine protease, thrombin.

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