N-carbamimidoylcarbamoyl-sulfanilic acid, also known as sulfadiazine, is a synthetic sulfonamide antibiotic that has been widely used for the treatment of various bacterial infections. It works by inhibiting bacterial synthesis of dihydrofolic acid, which is essential for the growth and reproduction of bacteria. Sulfadiazine is particularly effective against gram-positive bacteria and some gram-negative bacteria, making it useful in treating conditions such as urinary tract infections, respiratory infections, and skin infections. However, its use has declined in recent years due to the emergence of antibiotic-resistant strains and the development of newer, more effective antibiotics.
The CAS Registry Mumber 6405-81-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,0 and 5 respectively; the second part has 2 digits, 8 and 1 respectively. Calculate Digit Verification of CAS Registry Number 6405-81: (6*6)+(5*4)+(4*0)+(3*5)+(2*8)+(1*1)=88 88 % 10 = 8 So 6405-81-8 is a valid CAS Registry Number.