trans-1,2,3,4,4a,5,6,8a-octahydro-1,1-dimethyl-6,6-ethylenedioxynaphthalene-4a-carboxaldehyde is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 71886-92-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,8 and 6 respectively; the second part has 2 digits, 9 and 2 respectively. Calculate Digit Verification of CAS Registry Number 71886-92: (7*7)+(6*1)+(5*8)+(4*8)+(3*6)+(2*9)+(1*2)=165 165 % 10 = 5 So 71886-92-5 is a valid CAS Registry Number.