117253-41-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117253-41-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,5 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 117253-41:
(8*1)+(7*1)+(6*7)+(5*2)+(4*5)+(3*3)+(2*4)+(1*1)=105
105 % 10 = 5
So 117253-41-5 is a valid CAS Registry Number.
117253-41-5Relevant articles and documents
A practical method for the synthesis of sialyl α-glycosides
Martichonok, Valeri,Whitesides, George M.
, p. 8187 - 8191 (2007/10/03)
Addition of 2,4-dimethylbenzenesulfenyl chloride to sialic acid glycal gives crystalline 2-chloro-3-thiosialic acid 3 in 85% yield. Reaction of 3 with sodium thiomethoxide in acetonitrile at 0°C affords the sialic acid donor α-2-(methylthio)-3-thiosialic