1,4,9,9-Tetramethyl-5-acetoxy-1,2,4,5,6,7,8,8a-octahydro-3H-3a,7-methano-azulen is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 98032-80-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,0,3 and 2 respectively; the second part has 2 digits, 8 and 0 respectively. Calculate Digit Verification of CAS Registry Number 98032-80: (7*9)+(6*8)+(5*0)+(4*3)+(3*2)+(2*8)+(1*0)=145 145 % 10 = 5 So 98032-80-5 is a valid CAS Registry Number.