4,6,10,12,16,18,11,24-octahydroxy-2,8,14,20-tetranonyl-5,11,17,23-tetrakis(piperidino)methylcalix[4]arene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 393510-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,3,5,1 and 0 respectively; the second part has 2 digits, 8 and 9 respectively. Calculate Digit Verification of CAS Registry Number 393510-89: (8*3)+(7*9)+(6*3)+(5*5)+(4*1)+(3*0)+(2*8)+(1*9)=159 159 % 10 = 9 So 393510-89-9 is a valid CAS Registry Number.