889657-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 889657-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,9,6,5 and 7 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 889657-56:
(8*8)+(7*8)+(6*9)+(5*6)+(4*5)+(3*7)+(2*5)+(1*6)=261
261 % 10 = 1
So 889657-56-1 is a valid CAS Registry Number.
889657-56-1Relevant academic research and scientific papers
NEW PYRIDOTHIENOPYRIMIDINE DERIVATIVES
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Page/Page column 66, (2008/06/13)
Use of a pyrido[3',2':4,5]thieno[3,2-d]pyrimidine derivative of formula (I), wherein n is an integer selected from 0 or 1 R1 and R2 are independently selected from hydrogen atoms and C1-4 alkyl groups R3 represe
