N,N'-[oxybis(4,1-phenyleneiminosulfonyl-4,1-phenylene)]diacetamide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 121609-89-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,6,0 and 9 respectively; the second part has 2 digits, 8 and 9 respectively. Calculate Digit Verification of CAS Registry Number 121609-89: (8*1)+(7*2)+(6*1)+(5*6)+(4*0)+(3*9)+(2*8)+(1*9)=110 110 % 10 = 0 So 121609-89-0 is a valid CAS Registry Number.