(1α,5aα,9aβ,9bα)-1,3,5,5a,6,7,8,9,9a,9b-decahydro-3-acetoxy-5-oxo-6,6,9a-trimethyl-1,9b-oxirenonaphtho<1,2-c>furan is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 78424-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,4,2 and 4 respectively; the second part has 2 digits, 4 and 2 respectively. Calculate Digit Verification of CAS Registry Number 78424-42: (7*7)+(6*8)+(5*4)+(4*2)+(3*4)+(2*4)+(1*2)=147 147 % 10 = 7 So 78424-42-7 is a valid CAS Registry Number.