(4aS,5S,5aS,9aS)-2-Benzyl-5-phenyl-1,2,4,4a,5,5a-hexahydro-2-aza-cyclobuta[1,2:1,4]dibenzen-3-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 128644-19-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,4 and 4 respectively; the second part has 2 digits, 1 and 9 respectively. Calculate Digit Verification of CAS Registry Number 128644-19: (8*1)+(7*2)+(6*8)+(5*6)+(4*4)+(3*4)+(2*1)+(1*9)=139 139 % 10 = 9 So 128644-19-9 is a valid CAS Registry Number.