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113421-71-9

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113421-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113421-71-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,4,2 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 113421-71:
(8*1)+(7*1)+(6*3)+(5*4)+(4*2)+(3*1)+(2*7)+(1*1)=79
79 % 10 = 9
So 113421-71-9 is a valid CAS Registry Number.

113421-71-9Relevant articles and documents

Effect of the Structure of the Glycon on the Acid-Catalyzed Hydrolysis of Adenine Nucleosides

York, J. Lyndal

, p. 2171 - 2173 (1981)

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NOVEL PROCESS FOR THE PREPARATION OF SAPROPTERIN DIHYDROCHLORIDE AND ITS KEY INTERMEDIATE, L-BIOPTERIN

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Page/Page column 10; 15; 22, (2016/12/22)

The present invention relates to a novel process for the preparation of Sapropterin dihydrochloride of formula (1) and its key intermediate L-erythro-biopterin of formula (2). The present process is a simple and economically viable process for commercial production of Sapropterin dihydrochloride of formula (1) and its key intermediate L-biopterin of formula (2).

Highly α-selective hydrolysis of α,β-epoxyalcohols using tetrabutylammonium fluoride

Mukerjee, Purba,Abid, Mohammed,Schroeder, Frank C.

supporting information; experimental part, p. 3986 - 3989 (2010/11/04)

We report a simple method for the highly regio- and stereoselective hydrolysis of α,β-epoxyalcohols. Treatment of enantiopure epoxyalcohols derived from Sharpless epoxidation with TBAF/H2O resulted in exclusive ring opening at the normally disfavored α-position, providing access to arabino- or lyxo-configured triols with full preservation of stereochemical purity. The method was applied in syntheses of 5-deoxy-l-arabinose (26) and a family of bicyclic acetals based on the insect pheromone hydroxybrevicomin (4).

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