1,2,3,4,5-Pentamethyl-cyclohexane is an organic compound with the molecular formula C11H22. It is a cyclic alkane, specifically a cyclohexane derivative, with five methyl groups (CH3) attached to the carbon atoms at positions 1, 2, 3, 4, and 5. 1,2,3,4,5-pentamethyl-cyclohexane is a colorless liquid with a low melting point and boiling point, and it is insoluble in water but soluble in organic solvents. Due to its highly branched structure, 1,2,3,4,5-pentamethyl-cyclohexane has a low reactivity and is mainly used as a solvent, a chemical intermediate, and in the synthesis of other organic compounds. Its chemical properties are similar to those of other cycloalkanes, and it is generally stable under normal conditions.
The CAS Registry Mumber 1839-64-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,3 and 9 respectively; the second part has 2 digits, 6 and 4 respectively. Calculate Digit Verification of CAS Registry Number 1839-64: (6*1)+(5*8)+(4*3)+(3*9)+(2*6)+(1*4)=101 101 % 10 = 1 So 1839-64-1 is a valid CAS Registry Number.