Cyclopentane, 1-methyl-3-propyl-, also known as 1-methyl-3-propylcyclopentane, is a cyclic alkane with the molecular formula C9H18. It is a derivative of cyclopentane, where one hydrogen atom is replaced by a methyl group (CH3) at the 1st position and a propyl group (C3H7) is attached to the 3rd position. This organic compound is a colorless liquid with a density of approximately 0.74 g/cm3 and a boiling point of around 150°C. It is insoluble in water but soluble in most organic solvents. 1-methyl-3-propylcyclopentane is primarily used as a solvent, a chemical intermediate in the synthesis of various compounds, and as a component in the production of fuels and lubricants. Due to its low toxicity, it is considered relatively safe for handling, but appropriate precautions should still be taken to avoid inhalation or skin contact.
The CAS Registry Mumber 3728-67-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,7,2 and 8 respectively; the second part has 2 digits, 6 and 7 respectively. Calculate Digit Verification of CAS Registry Number 3728-67: (6*3)+(5*7)+(4*2)+(3*8)+(2*6)+(1*7)=104 104 % 10 = 4 So 3728-67-4 is a valid CAS Registry Number.