Spiro[2,4,6-cycloheptatriene-1,9'-[9H]fluorene], 2,3,4,5,6,7-hexafluoro- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 88413-56-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,8,4,1 and 3 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 88413-56: (7*8)+(6*8)+(5*4)+(4*1)+(3*3)+(2*5)+(1*6)=153 153 % 10 = 3 So 88413-56-3 is a valid CAS Registry Number.