1,1,1',1'-tetramethyl-1,4,1',4'-tetrahydro-2H,2'H-[3,3']spirobi(benzo[d][1,3]azasilinium); iodide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 54848-58-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,8,4 and 8 respectively; the second part has 2 digits, 5 and 8 respectively. Calculate Digit Verification of CAS Registry Number 54848-58: (7*5)+(6*4)+(5*8)+(4*4)+(3*8)+(2*5)+(1*8)=157 157 % 10 = 7 So 54848-58-7 is a valid CAS Registry Number.