1,1,3,3,5,5,7,7-octachloro-3,7-dihydro-1H,5H-benzo[1,2-c;4,5-c']difuran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 628302-83-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,8,3,0 and 2 respectively; the second part has 2 digits, 8 and 3 respectively. Calculate Digit Verification of CAS Registry Number 628302-83: (8*6)+(7*2)+(6*8)+(5*3)+(4*0)+(3*2)+(2*8)+(1*3)=150 150 % 10 = 0 So 628302-83-0 is a valid CAS Registry Number.