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189747-55-5

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189747-55-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 189747-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,7,4 and 7 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 189747-55:
(8*1)+(7*8)+(6*9)+(5*7)+(4*4)+(3*7)+(2*5)+(1*5)=205
205 % 10 = 5
So 189747-55-5 is a valid CAS Registry Number.

189747-55-5Downstream Products

189747-55-5Relevant articles and documents

Tyrosine kinase inhibitors. 12. Synthesis and structure-activity relationships for 6-substituted 4-(phenylamino)pyrimido[5,4-d]pyrimidines designed as inhibitors of the epidermal growth factor receptor

Rewcastle, Gordon W.,Bridges, Alexander J.,Fry, David W.,Rubin, J. Ronald,Denny, William A.

, p. 1820 - 1826 (2007/10/03)

A series of 6-substituted 4-anilinopyrimido[5,4-d]pyrimidines has been prepared and shown to be potent inhibitors of the tyrosine kinase activity of the epidermal growth factor receptor (EGFR). These compounds are structurally related to the pyrido[3,2-d]

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