all-trans-1-benzyloxy-3,7,11,15,19,23-hexamethyl-9-(p-tolylsulfonyl)-2,6,10,14,18,22-tetracosahexaene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 68690-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,6,9 and 0 respectively; the second part has 2 digits, 5 and 3 respectively. Calculate Digit Verification of CAS Registry Number 68690-53: (7*6)+(6*8)+(5*6)+(4*9)+(3*0)+(2*5)+(1*3)=169 169 % 10 = 9 So 68690-53-9 is a valid CAS Registry Number.