2-Chlor-2-butyryl-ethylphosphinsaeure-dichlorid, also known as 2-chloro-2-butyryl-ethylphosphonic dichloride, is a chemical compound with the molecular formula C6H10Cl3O3P. It is a derivative of phosphonic acid, featuring a chlorinated butyryl group and an ethyl group attached to the phosphorus atom. 2-Chlor-2-butyryl-ethylphosphinsaeure-dichlorid is primarily used as an intermediate in the synthesis of various organophosphorus compounds, which have applications in the fields of agriculture, pharmaceuticals, and materials science. Due to its reactivity and potential toxicity, it is essential to handle this chemical with proper safety precautions and in accordance with established guidelines.
The CAS Registry Mumber 5021-85-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,0,2 and 1 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 5021-85: (6*5)+(5*0)+(4*2)+(3*1)+(2*8)+(1*5)=62 62 % 10 = 2 So 5021-85-2 is a valid CAS Registry Number.