Benzolphosphonyl-bis-harnstoff, also known as benzolphosphonyl bis-urea or BPBU, is a chemical compound with the molecular formula C9H12N2O3P. It is a white crystalline solid that is soluble in water and various organic solvents. BPBU is a derivative of benzolphosphonyl chloride and urea, and it is synthesized by the reaction of these two compounds. Benzolphosphonyl-bis-harnstoff is primarily used as a flame retardant additive in various materials, such as plastics, textiles, and coatings, due to its ability to enhance thermal stability and reduce the flammability of these materials. Additionally, BPBU has potential applications in the pharmaceutical and agrochemical industries as a building block for the synthesis of other compounds.
The CAS Registry Mumber 7528-61-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,5,2 and 8 respectively; the second part has 2 digits, 6 and 1 respectively. Calculate Digit Verification of CAS Registry Number 7528-61: (6*7)+(5*5)+(4*2)+(3*8)+(2*6)+(1*1)=112 112 % 10 = 2 So 7528-61-2 is a valid CAS Registry Number.