1,9-bis(2,4-dinitrophenyl)-1,3,5,7,9-pentathia-2,4,6,8-tetraaza-2,3,6,7-nonatetraene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 64822-25-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,8,2 and 2 respectively; the second part has 2 digits, 2 and 5 respectively. Calculate Digit Verification of CAS Registry Number 64822-25: (7*6)+(6*4)+(5*8)+(4*2)+(3*2)+(2*2)+(1*5)=129 129 % 10 = 9 So 64822-25-9 is a valid CAS Registry Number.