2',3'-di-O-tosyluridine is a chemical compound derived from uridine, a nucleoside consisting of uracil attached to a ribose sugar. In this specific compound, the 2' and 3' hydroxyl groups of the ribose sugar are protected by tosyl (tosyl = p-toluenesulfonyl) groups, which are commonly used in organic synthesis to protect hydroxyl groups from unwanted reactions. This protection is crucial in various chemical modifications and synthesis processes, as it allows for selective reactions at other sites on the molecule. The compound plays a significant role in the synthesis of modified nucleosides, which are important in medicinal chemistry and the development of antiviral drugs.
The CAS Registry Mumber 6206-11-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,0 and 6 respectively; the second part has 2 digits, 1 and 1 respectively. Calculate Digit Verification of CAS Registry Number 6206-11: (6*6)+(5*2)+(4*0)+(3*6)+(2*1)+(1*1)=67 67 % 10 = 7 So 6206-11-7 is a valid CAS Registry Number.