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2,9-diphenyl-5r,13c;6t,12t-dietheno-5ac,12ac-[2]oxapropano-[1,2,4]triazolo[1,2-a][1,2,4]triazolo[1',2':1,2]pyridazino[4,5-d]pyridazine-1,3,8,10,17-pentaone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

69915-25-9

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69915-25-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69915-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,9,1 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 69915-25:
(7*6)+(6*9)+(5*9)+(4*1)+(3*5)+(2*2)+(1*5)=169
169 % 10 = 9
So 69915-25-9 is a valid CAS Registry Number.
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