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103213-39-4

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103213-39-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103213-39-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,2,1 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 103213-39:
(8*1)+(7*0)+(6*3)+(5*2)+(4*1)+(3*3)+(2*3)+(1*9)=64
64 % 10 = 4
So 103213-39-4 is a valid CAS Registry Number.

103213-39-4Relevant articles and documents

Protecting-group-free synthesis of glycosyl 1-phosphates

Edgar, Landon John G.,Dasgupta, Somnath,Nitz, Mark

supporting information; experimental part, p. 4226 - 4229 (2012/09/22)

Glycosyl 1-phosphates enriched in the α-anomer are obtained without the use of protecting groups in two steps starting from the free hemiacetal. Condensation of free hemiacetals with toluenesulfonylhydrazide yields a range of glycosylsulfonohydrazide donors which can be oxidized using cupric chloride in the presence of phosphoric acid and the coordinating additive 2-methyl-2-oxazoline to give useful yields of the fully deprotected glycosyl 1-phosphates.

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