Cystografin, also known as diatrizoate meglumine and diatrizoate sodium, is a radiopaque contrast agent used in medical imaging procedures, particularly for urography and cystography. It is a water-soluble iodine-based compound that, when injected into the urinary tract, enhances the visibility of the kidneys, ureters, and bladder on X-ray images. This allows physicians to diagnose various conditions, such as urinary tract infections, kidney stones, and structural abnormalities. Cystografin works by increasing the density of the urine, making it easier to visualize the urinary system's anatomy and function. However, it is essential to use this contrast agent with caution, as it can cause adverse reactions, including allergic reactions, kidney damage, and vomiting.
The CAS Registry Mumber 7170-91-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,1,7 and 0 respectively; the second part has 2 digits, 9 and 1 respectively. Calculate Digit Verification of CAS Registry Number 7170-91: (6*7)+(5*1)+(4*7)+(3*0)+(2*9)+(1*1)=94 94 % 10 = 4 So 7170-91-4 is a valid CAS Registry Number.