(5S,5aS,7S,8aR)-7-(tert-Butyl-dimethyl-silanyloxy)-5-methoxymethoxy-1,4,5,5a,6,7,8,8a-octahydro-2H-as-indacen-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 204378-53-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,3,7 and 8 respectively; the second part has 2 digits, 5 and 3 respectively. Calculate Digit Verification of CAS Registry Number 204378-53: (8*2)+(7*0)+(6*4)+(5*3)+(4*7)+(3*8)+(2*5)+(1*3)=120 120 % 10 = 0 So 204378-53-0 is a valid CAS Registry Number.