(1R,2aR,4aS,6S,6aR,6bS)-1,2,2a,4a,5,6,6a,6b-Octahydro-cyclopenta[cd]pentalene-1,6-diol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 42501-44-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,5,0 and 1 respectively; the second part has 2 digits, 4 and 4 respectively. Calculate Digit Verification of CAS Registry Number 42501-44: (7*4)+(6*2)+(5*5)+(4*0)+(3*1)+(2*4)+(1*4)=80 80 % 10 = 0 So 42501-44-0 is a valid CAS Registry Number.