methyl 1,2,4,4a,6a,7,8,9-octahydro-8,8-dimethyl-2-oxopentaleno<1,6a-c>pyran-5-carboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 83648-43-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,4 and 8 respectively; the second part has 2 digits, 4 and 3 respectively. Calculate Digit Verification of CAS Registry Number 83648-43: (7*8)+(6*3)+(5*6)+(4*4)+(3*8)+(2*4)+(1*3)=155 155 % 10 = 5 So 83648-43-5 is a valid CAS Registry Number.