1,5,1',5'-tetramethyl-2,2'-diphenyl-1,2,2',4'-tetrahydro-4,4'methanylylidene-bis-pyrazol-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 58789-60-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,7,8 and 9 respectively; the second part has 2 digits, 6 and 0 respectively. Calculate Digit Verification of CAS Registry Number 58789-60: (7*5)+(6*8)+(5*7)+(4*8)+(3*9)+(2*6)+(1*0)=189 189 % 10 = 9 So 58789-60-9 is a valid CAS Registry Number.