4,4-dimethyl-1,2,3b,5,6b-pentaphenyl-1,3a,3b,4,6a,6b-hexahydro-silolo[2',3':3,4]cyclobuta[1,2-b]phosphole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 28124-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,2 and 4 respectively; the second part has 2 digits, 2 and 3 respectively. Calculate Digit Verification of CAS Registry Number 28124-23: (7*2)+(6*8)+(5*1)+(4*2)+(3*4)+(2*2)+(1*3)=94 94 % 10 = 4 So 28124-23-4 is a valid CAS Registry Number.