1,2,8,8-tetramethyl-4-oxo-1,2,3,4,6,7,8,8a-octahydro-naphthalene-2-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 877659-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,7,6,5 and 9 respectively; the second part has 2 digits, 5 and 7 respectively. Calculate Digit Verification of CAS Registry Number 877659-57: (8*8)+(7*7)+(6*7)+(5*6)+(4*5)+(3*9)+(2*5)+(1*7)=249 249 % 10 = 9 So 877659-57-9 is a valid CAS Registry Number.