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112018-90-3

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  • 3,22-(Epoxyethanoxy)-6,9:25,28-dietheno-7,36:17,26-dimethano-14,18:33,37-dimetheno-18H,37H-dibenzo[j,a1][1,4,18,21]tetraoxacyclotetratriacontin,5,11,12,19,24,30,31,38-octahydro-2,15,21,34,41,49-hexame

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  • 3,22-(Epoxyethanoxy)-6,9:25,28-dietheno-7,36:17,26-dimethano-14,18:33,37-dimetheno-18H,37H-dibenzo[j,a1][1,4,18,21]tetraoxacyclotetratriacontin,5,11,12,19,24,30,31,38-octahydro-2,15,21,34,41,49-hexame

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  • 3,22-(Epoxyethanoxy)-6,9:25,28-dietheno-7,36:17,26-dimethano-14,18:33,37-dimetheno-18H,37H-dibenzo[j,a1][1,4,18,21]tetraoxacyclotetratriacontin,5,11,12,19,24,30,31,38-octahydro-2,15,21,34,41,49-hexame

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  • 3,22-(Epoxyethanoxy)-6,9:25,28-dietheno-7,36:17,26-dimethano-14,18:33,37-dimetheno-18H,37H-dibenzo[j,a1][1,4,18,21]tetraoxacyclotetratriacontin,5,11,12,19,24,30,31,38-octahydro-2,15,21,34,41,49-hexame

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112018-90-3 Usage

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Check Digit Verification of cas no

The CAS Registry Mumber 112018-90-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,0,1 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 112018-90:
(8*1)+(7*1)+(6*2)+(5*0)+(4*1)+(3*8)+(2*9)+(1*0)=73
73 % 10 = 3
So 112018-90-3 is a valid CAS Registry Number.

112018-90-3Downstream Products

112018-90-3Relevant articles and documents

Induced chiroptical changes of a water-soluble cryptophane by encapsulation of guest molecules and counterion effects

Bouchet, Aude,Brotin, Thierry,Cavagnat, Dominique,Buffeteau, Thierry

scheme or table, p. 4507 - 4518 (2010/08/20)

We report the synthesis of the water-soluble cryptophanol derivative 1 and the study of the chiroptical properties of its two enantiomers (>99%ee) by polarimetry, electronic circular dichroism (ECD), and vibrational circular dichroism (VCD). We show that cryptophanol 1 exhibits unusual chiroptical properties in water under basic conditions (pH>12). For instance, the shapes of the ECD and VCD spectra of 1 in water were strongly dependent on the nature of the alkali metal ions (Li+, Na+, K+, Cs +) surrounding the cryptophane and whether or not a guest molecule is present inside the cavity of the host. To the best of our knowledge, this is the first example in which the nature of these counterions governs the chiropti-cal properties of a host molecule. Moreover, specific ECD spectra were obtained depending on the size of the guest molecules. This makes 1 a good sensor for small neutral molecules in aqueous solvent. Finally, VCD experiments associated with DFT calculations show that the chiroptical changes can be directly correlated to the presence of charges close to the aromatic rings and with a conformational change of the alkyl chains upon encapsulation.

Two-step synthesis of D3 and C3h cryptophanes

Canceill, Josette,Collet, Andre

, p. 582 - 584 (2007/10/02)

Dihalides X-(Z)-X, [Z = (CH2)n; n = 1-7 or CH 2CH=CHCH2] react with the phenol group of vanillyl alcohol to give the dialkylated derivatives HOCH2-Ar-O-(Z)-O-Ar-CH 2OH (2), which in turn, in the presence of formic acid, afford the corresponding D3 cryptophanes (3), with, in some cases, minor amounts of the C3h isomers (4).

Synthesis of a (D3)-Bis(cyclotriveratrylenyl) Macrocage by Stereospecific Replication of a (C3)-Subunit

Gabard, Jacqueline,Collet, Andre

, p. 1137 - 1139 (2007/10/02)

(D3)-Bis(cyclotriveratrylenyl) (4), has been synthesized in racemic and optically active forms by stereospecific replication of a (C3)-subunit; the absolute configuration of (+)-(4) was assigned from that of the (C3)-precursor.

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