2,11-diphenyl-13,20-di(pyrrolidin-1-ylcarbonyl)-5,6,7,8-tetrahydrotribenzo{b,f,l}{1,4,8,11}-tetraazacyclotetradecine-6,7-dionato(2-)nickel(II) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 109111-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,1 and 1 respectively; the second part has 2 digits, 8 and 9 respectively. Calculate Digit Verification of CAS Registry Number 109111-89: (8*1)+(7*0)+(6*9)+(5*1)+(4*1)+(3*1)+(2*8)+(1*9)=99 99 % 10 = 9 So 109111-89-9 is a valid CAS Registry Number.
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