2(1),2(4),12(1),12(4)-tetraphenyldibenzo[b,l]-7,8,17,18-tetrapropyl-21H,23H-5,10,15,20-tetraazaporphyrin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 445489-38-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,5,4,8 and 9 respectively; the second part has 2 digits, 3 and 8 respectively. Calculate Digit Verification of CAS Registry Number 445489-38: (8*4)+(7*4)+(6*5)+(5*4)+(4*8)+(3*9)+(2*3)+(1*8)=183 183 % 10 = 3 So 445489-38-3 is a valid CAS Registry Number.