1-Oxo-ethyl-butylphosphinsaeure-butylester, also known as butyl 1-oxoethyl butylphosphinate, is an organic compound with the chemical formula C8H17O3P. It is a derivative of phosphinic acid, featuring a phosphorus atom bonded to a butyl group, an ethyl group, and a keto-ethyl group. <1-Oxo-ethyl>-butylphosphinsaeure-butylester is characterized by its phosphorus-carbon bond and is used in various applications, including as a flame retardant, a stabilizer in plastics, and as an intermediate in the synthesis of other organophosphorus compounds. It is important to handle this chemical with care due to its potential reactivity and toxicity.
The CAS Registry Mumber 7016-66-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,0,1 and 6 respectively; the second part has 2 digits, 6 and 6 respectively. Calculate Digit Verification of CAS Registry Number 7016-66: (6*7)+(5*0)+(4*1)+(3*6)+(2*6)+(1*6)=82 82 % 10 = 2 So 7016-66-2 is a valid CAS Registry Number.