Cinnoline, 3-methyl-4-(3-pyridinyl)- (9CI) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 817209-05-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,7,2,0 and 9 respectively; the second part has 2 digits, 0 and 5 respectively. Calculate Digit Verification of CAS Registry Number 817209-05: (8*8)+(7*1)+(6*7)+(5*2)+(4*0)+(3*9)+(2*0)+(1*5)=155 155 % 10 = 5 So 817209-05-5 is a valid CAS Registry Number.
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