139302-05-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139302-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,0 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 139302-05:
(8*1)+(7*3)+(6*9)+(5*3)+(4*0)+(3*2)+(2*0)+(1*5)=109
109 % 10 = 9
So 139302-05-9 is a valid CAS Registry Number.
139302-05-9Relevant articles and documents
Synthesis of the ezomycin octosyl nucleoside
Knapp,Shieh,Jeramillo,Trilles,Nandan
, p. 946 - 948 (1994)
Efficient chain extension of β-D-galactopyranosyl cyanide, cyclization to a bicyclic octose, and then attachment of cytosine affords the ezomycinoctosyl nucleoside 17 in a form suitable for elaboration to the ezomycins (e.g., 1).