Urea, N,N'-bis(3,4,5-trichlorophenyl)-, also known as 3,4,5-trichlorophenylurea or TCPU, is a chemical compound with the molecular formula C13H8Cl6N2O. It is a derivative of urea, where two 3,4,5-trichlorophenyl groups are attached to the nitrogen atoms. Urea, N,N'-bis(3,4,5-trichlorophenyl)- is primarily used as a chemical intermediate in the synthesis of various agrochemicals, particularly herbicides. Due to its potential environmental and health risks, its production and use have been restricted or banned in many countries. TCPU is known for its persistence in the environment and its ability to accumulate in the food chain, posing a threat to both human health and the ecosystem.
The CAS Registry Mumber 76393-46-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,3,9 and 3 respectively; the second part has 2 digits, 4 and 6 respectively. Calculate Digit Verification of CAS Registry Number 76393-46: (7*7)+(6*6)+(5*3)+(4*9)+(3*3)+(2*4)+(1*6)=159 159 % 10 = 9 So 76393-46-9 is a valid CAS Registry Number.