Fumaric acid, also known as trans-butenedioic acid, is a naturally occurring organic compound with the chemical formula C4H4O4. It is a white crystalline substance that is found in small amounts in various fruits and vegetables, such as grapes, apples, and beets. Fumaric acid is an important intermediate in the chemical industry, used in the production of various products, including resins, adhesives, and coatings. It is also used as a food additive, primarily as an acidulant and flavor enhancer, and has applications in the pharmaceutical industry as a buffering agent. Additionally, fumaric acid has been studied for its potential health benefits, such as its use in treating skin conditions like psoriasis.
The CAS Registry Mumber 6315-18-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,3,1 and 5 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 6315-18: (6*6)+(5*3)+(4*1)+(3*5)+(2*1)+(1*8)=80 80 % 10 = 0 So 6315-18-0 is a valid CAS Registry Number.