(4aS,5S,8aS)-(+)-3,4,4a,7,8,8a-Hexahydro-5,8a-dimethyl-5-(prop-2-enyl)naphthalene-1,6(2H,5H)-dione 1-(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 91547-51-2 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 1 respectively. Calculate Digit Verification of CAS Registry Number 91547-51: (7*9)+(6*1)+(5*5)+(4*4)+(3*7)+(2*5)+(1*1)=142 142 % 10 = 2 So 91547-51-2 is a valid CAS Registry Number.