2-(7,8,9,10,12,13,16,17,18,19-decahydro-6H,15H-5,11,14,20-tetraoxa-8,17-diaza-benzocyclooctadecen-1-yloxy)-ethanol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 740809-08-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,0,8,0 and 9 respectively; the second part has 2 digits, 0 and 8 respectively. Calculate Digit Verification of CAS Registry Number 740809-08: (8*7)+(7*4)+(6*0)+(5*8)+(4*0)+(3*9)+(2*0)+(1*8)=159 159 % 10 = 9 So 740809-08-9 is a valid CAS Registry Number.