Passa al contenuto
Merck
Tutte le immagini(3)

Documenti fondamentali

158399

Sigma-Aldrich

Dibenzo-18-crown-6

98%

Sinonimo/i:

2,3,11,12-Dibenzo-1,4,7,10,13,16-hexaoxacyclooctadeca-2,11-diene, 6,7,9,10,17,18,20,21-Octahydrodibenzo[b,k][1,4,7,10,13,16]hexaoxacyclooctadecene, DB18C6

Autenticatiper visualizzare i prezzi riservati alla tua organizzazione & contrattuali

Scegli un formato

2.5 G
CHF 28.40
10 G
CHF 59.70
50 G
CHF 159.00

CHF 28.40


Spedizione prevista il01 giugno 2025


Richiedi un ordine bulk

Scegli un formato

Cambia visualizzazione
2.5 G
CHF 28.40
10 G
CHF 59.70
50 G
CHF 159.00

About This Item

Formula empirica (notazione di Hill):
C20H24O6
Numero CAS:
Peso molecolare:
360.40
Beilstein:
1162153
Numero CE:
Numero MDL:
Codice UNSPSC:
12352005
ID PubChem:
NACRES:
NA.22

CHF 28.40


Spedizione prevista il01 giugno 2025


Richiedi un ordine bulk

Saggio

98%

Punto di fusione

162-164 °C (lit.)

Gruppo funzionale

ether

Stringa SMILE

C1COc2ccccc2OCCOCCOc3ccccc3OCCO1

InChI

1S/C20H24O6/c1-2-6-18-17(5-1)23-13-9-21-11-15-25-19-7-3-4-8-20(19)26-16-12-22-10-14-24-18/h1-8H,9-16H2
YSSSPARMOAYJTE-UHFFFAOYSA-N

Cerchi prodotti simili? Visita Guida al confronto tra prodotti

Descrizione generale

Dibenzo-18-crown-6 is a macrocyclic ligand used in the selective binding and extraction of alkali metal cations in solution phase. [1] [2]

Applicazioni

Phase-transfer catalyst employed in monoazaporphyrin syntheses.[3] Agent used for ion transfer across membranes[4] and as a synthon for preparation of liquid crystal polyesters.[5]

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

dust mask type N95 (US), Eyeshields, Gloves


Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number

Non trovi la versione di tuo interesse?

Se hai bisogno di una versione specifica, puoi cercare il certificato tramite il numero di lotto.

Possiedi già questo prodotto?

I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

Visita l’Archivio dei documenti

I clienti hanno visto anche

Tetrahedron Letters, 36, 1567-1567 (1995)
Binding selectivity of dibenzo-18-crown-6 for alkali metal cations in aqueous solution: A density functional theory study using a continuum solvation model
Chang Min C et al.
Chemistry Central Journal, 6, 1-8 (2012)
Acta Polym., 45, 308-308 (1994)
Solvent influence upon complex formation between dibenzo-18-crown-6 with the Y3+ metal cation in pure and binary mixed organic solvents
GH Rounaghi et al.
Journal of Chemical and Engineering Data, 56, 2836-2840 (2011)
Ying Han et al.
The Journal of organic chemistry, 77(5), 2422-2430 (2012-02-11)
A new triptycene-derived macrotricyclic host containing two dibenzo-[18]-crown-6 moieties was synthesized and shown to form 1:1 complexes with paraquat derivatives in solution, in which the guests all thread the central cavity of the host. However, it was interestingly found that

Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

Reviews

No rating value

Active Filters

Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..

Contatta l'Assistenza Tecnica.