S-Methylmercaptozimtsaeure, also known as S-methyl methionine sulfoxide or SMM, is an organic compound with the chemical formula C5H11NO2S. It is a derivative of methionine, an essential amino acid, and is characterized by the presence of a sulfoxide group. SMM is formed when methionine is exposed to oxidizing agents, and it plays a role in various biological processes, including the protection of cells from oxidative stress. It is also used as a flavoring agent in the food industry to enhance the taste of certain products. SMM is generally considered safe for consumption, but its levels in food are regulated to ensure safety and quality.
The CAS Registry Mumber 4890-72-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,9 and 0 respectively; the second part has 2 digits, 7 and 2 respectively. Calculate Digit Verification of CAS Registry Number 4890-72: (6*4)+(5*8)+(4*9)+(3*0)+(2*7)+(1*2)=116 116 % 10 = 6 So 4890-72-6 is a valid CAS Registry Number.