6-Methyl-8-oxo-1,2,3,4,4a,5,6,7,8,9,10,11,12b-dodecahydrotetraphen is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 28740-33-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,7,4 and 0 respectively; the second part has 2 digits, 3 and 3 respectively. Calculate Digit Verification of CAS Registry Number 28740-33: (7*2)+(6*8)+(5*7)+(4*4)+(3*0)+(2*3)+(1*3)=122 122 % 10 = 2 So 28740-33-2 is a valid CAS Registry Number.