(4aS,6S,7R,7aS)-1,6-Diacetoxy-7-methyl-1,4a,5,6,7,7a-hexahydro-cyclopenta[c]pyran-4-carboxylic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 39947-80-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,9,4 and 7 respectively; the second part has 2 digits, 8 and 0 respectively. Calculate Digit Verification of CAS Registry Number 39947-80: (7*3)+(6*9)+(5*9)+(4*4)+(3*7)+(2*8)+(1*0)=173 173 % 10 = 3 So 39947-80-3 is a valid CAS Registry Number.