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Merck

87884

Supelco

trans-2-[3-(4-tert-Butylphenyl)-2-methyl-2-propenyliden]malononitril

matrix substance for MALDI-MS, ≥99.0% (HPLC)

Synonym(e):

DCTB

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250 MG
52,10 €
1 G
182,00 €

52,10 €


Versandbereit am07. April 2025Details


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250 MG
52,10 €
1 G
182,00 €

About This Item

Empirische Formel (Hill-System):
C17H18N2
CAS-Nummer:
Molekulargewicht:
250.34
Beilstein:
8913051
MDL-Nummer:
UNSPSC-Code:
12000000
PubChem Substanz-ID:
NACRES:
NA.21

52,10 €


Versandbereit am07. April 2025Details


Bulk-Bestellung anfordern

Qualität

matrix substance for MALDI-MS

Qualitätsniveau

Assay

≥99.0% (HPLC)

Form

powder

Methode(n)

MALDI-MS: suitable

mp (Schmelzpunkt)

123-126 °C

Kationenspuren

Ba: ≤5 mg/kg
Ca: ≤5 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
K: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Na: ≤10 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Zn: ≤5 mg/kg

Absorption

>2000 at 337 nm (mol. absorption)

Eignung

suitable for matrix substance for MALDI-MS

SMILES String

CC(=C/c1ccc(cc1)C(C)(C)C)\C=C(\C#N)C#N

InChI

1S/C17H18N2/c1-13(10-15(11-18)12-19)9-14-5-7-16(8-6-14)17(2,3)4/h5-10H,1-4H3/b13-9+

InChIKey

OIASAVWSBWJWBR-UKTHLTGXSA-N

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Sonstige Hinweise

Verwendung als Matrix für MALDI-MS[1]

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Piktogramme

Exclamation mark

Signalwort

Warning

Gefahreneinstufungen

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral

Lagerklassenschlüssel

13 - Non Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

dust mask type N95 (US), Eyeshields, Gloves


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Kunden haben sich ebenfalls angesehen

L. Ulmer et al.,
Eur. J. Mass Spectrom., 6, 49-49 (2000)
Tomomi Iura et al.
Rapid communications in mass spectrometry : RCM, 29(2), 155-162 (2015-02-03)
Matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) has been widely utilized for the structural characterization of various synthetic polymers. However, polymer sample molecules can occasionally decompose even in the MALDI process depending on the measurement conditions. In this work, the fragmentation
Matthew B Baker et al.
Nature communications, 6, 6234-6234 (2015-02-24)
The rational design of supramolecular polymers in water is imperative for their widespread use, but the design principles for these systems are not well understood. Herein, we employ a multi-scale (spatial and temporal) approach to differentiate two analogous water-soluble supramolecular
Georgios Rotas et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(45), 14729-14735 (2014-09-17)
Azafullerene (C59 N) was functionalized using a Mannich-type reaction and then subsequently condensed with lipoic acid to yield dithiolane-modified C59 N. In the following step, the extended dithiolane moiety from the C59 N core was utilized to decorate the azafullerene
Atanu Jana et al.
Dalton transactions (Cambridge, England : 2003), 44(1), 359-367 (2014-11-11)
A novel electron rich, tetrathiafulvalene fused zinc porphyrin, (TTF)4PZn, has been newly synthesized and characterized using spectral and electrochemical methods. In spite of the presence of eight t-butyl groups, (TTF)4PZn exhibited appreciable aggregation in solution. Scanning electron microscopic (SEM) imaging

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

    1 Antwort
    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

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

    1 Antwort
    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

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