(4aS,8aS)-3,4,4a,5,6,7,8,8a-Octahydro-5,5,8a-trimethylnaphthalen-1(2H)-one ethylene acetal is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 91547-54-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,5,4 and 7 respectively; the second part has 2 digits, 5 and 4 respectively. Calculate Digit Verification of CAS Registry Number 91547-54: (7*9)+(6*1)+(5*5)+(4*4)+(3*7)+(2*5)+(1*4)=145 145 % 10 = 5 So 91547-54-5 is a valid CAS Registry Number.