Acetic acid (2aS,4aR,6aR,6bS)-6-oxo-1,2,2a,4a,5,6,6a,6b-octahydro-cyclopenta[cd]pentalen-1-yl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 42501-35-9 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, 3 and 5 respectively. Calculate Digit Verification of CAS Registry Number 42501-35: (7*4)+(6*2)+(5*5)+(4*0)+(3*1)+(2*3)+(1*5)=79 79 % 10 = 9 So 42501-35-9 is a valid CAS Registry Number.