Urea, N-(1-cyanocyclohexyl)-N'-(1,1-dimethylethyl)-N-hydroxy-, also known as 3-(1-cyanocyclohexyl)-1-(1,1-dimethylethyl)-3-hydroxyurea or fenuron, is a white crystalline chemical compound with the molecular formula C10H16N2O2. It is a derivative of urea and is primarily used as a plant growth regulator and an herbicide. Fenuron works by inhibiting the enzyme catalase, which is involved in the breakdown of hydrogen peroxide, leading to an increase in the plant's growth rate and fruit size. It is commonly used in agriculture to promote growth and yield in various crops, such as fruits, vegetables, and ornamental plants. However, due to its potential environmental and health risks, its use has been restricted or banned in some countries.
The CAS Registry Mumber 66285-91-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,6,2,8 and 5 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 66285-91: (7*6)+(6*6)+(5*2)+(4*8)+(3*5)+(2*9)+(1*1)=154 154 % 10 = 4 So 66285-91-4 is a valid CAS Registry Number.