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117248-89-2

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117248-89-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117248-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,4 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 117248-89:
(8*1)+(7*1)+(6*7)+(5*2)+(4*4)+(3*8)+(2*8)+(1*9)=132
132 % 10 = 2
So 117248-89-2 is a valid CAS Registry Number.

117248-89-2Downstream Products

117248-89-2Relevant articles and documents

STEREOSELECTIVITIES IN THE COUPLING REACTION BETWEEN SILYLATED PYRIMIDINE BASES AND 1-HALO-2,3-DIDEOXYRIBOSE

Kawakami, Hiroshi,Ebata, Takashi,Koseki, Koshi,Matsumoto, Katsuya,Matsushita, Hajime,et al.

, p. 2041 - 2054 (2007/10/02)

Coupling reactions between 1-chloro-2,3-dideoxyribose and silylated pyrimidines have been examined from the point of stereoselectivity.When the reaction was carried out in chloroform, the selectivity was in the anomeric ratio of α:β = 4:6.On the other hand, the presence of tertiary amine raises the selectivity to α:β = 3:7.

A NEW SYNTHESIS OF 2',3'-DIDEOXYNUCLEOSIDES FOR AIDS CHEMOTHERAPY

Farina, Vittorio,Benigni, Daniel A.

, p. 1239 - 1242 (2007/10/02)

Dideoxynucleosides were prepared in high optical purity from L-glutamic acid.The condensation reactions between activated 2,3-dideoxypentofuranoses and silylated purines or pyrimidines afforded separable β/α mixtures of dideoxynucleosides.

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