Cas 99808-43-2,1-Chloro-3,4-di-O-benzoyl-2-deoxy-α,β-D-ribopyranose

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Check Digit Verification of cas no

The CAS Registry Mumber 99808-43-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,0 and 8 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 99808-43:
(7*9)+(6*9)+(5*8)+(4*0)+(3*8)+(2*4)+(1*3)=192
192 % 10 = 2
So 99808-43-2 is a valid CAS Registry Number.

99808-43-2Upstream product

13475-85-9 1,3,4-Tri-O-benzoyl-2-deoxy-α,β-D-ribopyranose

99808-43-2Downstream Products

139212-62-7 Benzoic acid (S)-4-(6-benzoylamino-purin-9-yl)-3,4-dihydro-2H-pyran-3-yl ester

99808-43-2Relevant academic research and scientific papers

SnCl4 versus TiCl4-mediated coupling between N-6-benzoyladenine and perbenzoylated 2-deoxypyranose: Application to the synthesis of certain homochiral acyclo and carboacyclonucleosides

Baud, Marie-V.,Chavis, Claude,Lucas, Marc,Imbach, Jean-L.

, p. 9993 - 10002 (2007/10/02)

1,3,4-tri-O-benzoyl 2-deoxyribopyranose and persilylated N-6-benzoyladenine react in two different and regioselective ways according to the nature of the coupling reagent SnCl4 or TiCl4. The former Lewis acid gives rise to the anomer

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