1,10-Cyclooctadecadiyne is a unique organic compound characterized by its molecular formula C18H26. It features a cycloalkane ring with 18 carbon atoms, in which two carbon atoms are connected by a triple bond, and the remaining carbon atoms are arranged in a cyclic structure. This molecule is known for its rigid structure due to the presence of the triple bond, which restricts rotation around the bond. It is a colorless, crystalline solid that is insoluble in water but soluble in organic solvents. 1,10-Cyclooctadecadiyne is of interest in organic chemistry and materials science, particularly for its potential applications in the synthesis of more complex molecules and as a building block for advanced materials.
The CAS Registry Mumber 4277-03-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,7 and 7 respectively; the second part has 2 digits, 0 and 3 respectively. Calculate Digit Verification of CAS Registry Number 4277-03: (6*4)+(5*2)+(4*7)+(3*7)+(2*0)+(1*3)=86 86 % 10 = 6 So 4277-03-6 is a valid CAS Registry Number.