TERT-BUTYLCALIX[4]ARENE-TETRAKIS(N,N-DIMETHYLACETAMIDE) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 145237-45-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,5,2,3 and 7 respectively; the second part has 2 digits, 4 and 5 respectively. Calculate Digit Verification of CAS Registry Number 145237-45: (8*1)+(7*4)+(6*5)+(5*2)+(4*3)+(3*7)+(2*4)+(1*5)=122 122 % 10 = 2 So 145237-45-2 is a valid CAS Registry Number.