2.2.4.5.5-Pentamethyl-Δ3-tetrahydro-benzaldehyd is an organic compound characterized by its molecular formula C12H20O. It is a derivative of benzaldehyde, featuring a tetrahydrobenzene ring with five methyl groups attached at the 2, 2, 4, 5, and 5 positions, respectively. The Δ3 notation indicates that the compound has a double bond between the third and fourth carbon atoms in the ring, which is part of a tetrahydro structure, meaning the benzene ring has been reduced to a cyclohexane ring. This aldehyde is known for its strong, woody odor and is used in the fragrance industry to create natural and synthetic perfumes, as well as in the synthesis of other organic compounds. Due to its complex structure and unique properties, it is an important intermediate in the production of various scent compounds and pharmaceuticals.
The CAS Registry Mumber 1726-46-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,2 and 6 respectively; the second part has 2 digits, 4 and 6 respectively. Calculate Digit Verification of CAS Registry Number 1726-46: (6*1)+(5*7)+(4*2)+(3*6)+(2*4)+(1*6)=81 81 % 10 = 1 So 1726-46-1 is a valid CAS Registry Number.