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155417-88-2

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155417-88-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 155417-88-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,5,4,1 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 155417-88:
(8*1)+(7*5)+(6*5)+(5*4)+(4*1)+(3*7)+(2*8)+(1*8)=142
142 % 10 = 2
So 155417-88-2 is a valid CAS Registry Number.

155417-88-2Relevant articles and documents

Asymmetric aldol reaction of glyoxal catalyzed by diarylprolinol

Hayashi, Yujiro,Kojima, Masahiro

, p. 2883 - 2885 (2013)

All selection should be this- eeasy: The direct asymmetric aldol reaction of commercial aqueous glyoxal is catalyzed by trifluoromethyl-substituted diarylprolinol 1 to afford a β-formyl-β-hydroxy-α-substituted aldehyde in good yield with excellent anti selectivity and excellent enantioselectivity.

A Straightforward Preparation of Both Enantiomerically Pure 2-O-Benzyl-erythro-Butanetetrols

Flasche, Michael,Scharf, Hans-Dieter

, p. 1543 - 1546 (2007/10/02)

A short and efficient synthesis of both enatiomerically pure 2-O-benzyl-erythro-butanetetrols 4 and ent-4 from the readily available D-erthronolactone 1 is presented.The synthesis proceeds in a highly efficient manner and is in both cases substrate controlled.

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