7,13,21,27-tetra-tert-butyl-29,30,31,32-tetrahydroxy-2,3,16,17-tetrahomo-3,17-dioxacalix<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 85097-23-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,0,9 and 7 respectively; the second part has 2 digits, 2 and 3 respectively. Calculate Digit Verification of CAS Registry Number 85097-23: (7*8)+(6*5)+(5*0)+(4*9)+(3*7)+(2*2)+(1*3)=150 150 % 10 = 0 So 85097-23-0 is a valid CAS Registry Number.