6,6,16,16-tetraphenyl-2,10,12,20-tetraoxa-6,16-diphospha-1,11(1,4)-dibenzena-cycloeicosaphanediium; diiodide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 72988-06-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,8 and 8 respectively; the second part has 2 digits, 0 and 6 respectively. Calculate Digit Verification of CAS Registry Number 72988-06: (7*7)+(6*2)+(5*9)+(4*8)+(3*8)+(2*0)+(1*6)=168 168 % 10 = 8 So 72988-06-8 is a valid CAS Registry Number.