3.3.5.7.7-Pentanitrononan-1.9-dicarbonsaeure-dimethylester, also known as dimethyl 3,3,5,7,7-pentamethylnonanedioate, is a chemical compound with the molecular formula C13H24O4. It is a colorless liquid with a fruity, apple-like odor. This ester is commonly used as a fragrance ingredient in the perfume industry, as well as a flavoring agent in food and beverages. It is synthesized through the esterification of dimethyl carbonate with 3,3,5,7,7-pentamethylnonanedioic acid. The compound is known for its stability and is often used to impart a fresh, fruity scent in various applications.
The CAS Registry Mumber 1680-98-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,8 and 0 respectively; the second part has 2 digits, 9 and 8 respectively. Calculate Digit Verification of CAS Registry Number 1680-98: (6*1)+(5*6)+(4*8)+(3*0)+(2*9)+(1*8)=94 94 % 10 = 4 So 1680-98-4 is a valid CAS Registry Number.