Cis,cis-Docosa-8,15-dienoic acid, also known as 8,15-Docosatetraenoic acid, is a polyunsaturated omega-3 fatty acid with a 22-carbon chain and four double bonds, two of which are in the cis configuration at the 8th and 15th carbon positions. It is an important component of the human diet, as it plays a crucial role in maintaining the structure and function of cell membranes, particularly in the brain and retina. This fatty acid is also involved in the production of eicosanoids, which are signaling molecules that regulate inflammation, blood clotting, and other physiological processes. Cis,cis-Docosa-8,15-dienoic acid is primarily found in cold-water fish, such as salmon and mackerel, and is considered essential for human health due to its limited synthesis in the body.
The CAS Registry Mumber 3516-52-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,1 and 6 respectively; the second part has 2 digits, 5 and 2 respectively. Calculate Digit Verification of CAS Registry Number 3516-52: (6*3)+(5*5)+(4*1)+(3*6)+(2*5)+(1*2)=77 77 % 10 = 7 So 3516-52-7 is a valid CAS Registry Number.