Passa al contenuto
Merck
Tutte le immagini(1)

Documenti fondamentali

87851

Supelco

2,2,6,6-Tetramethyl-3,5-heptanedione

for GC derivatization, LiChropur, ≥98.0%

Sinonimo/i:

Dipivaloylmethane

Autenticatiper visualizzare i prezzi riservati alla tua organizzazione & contrattuali


About This Item

Formula condensata:
(CH3)3CCOCH2COC(CH3)3
Numero CAS:
Peso molecolare:
184.28
Beilstein:
1447269
Numero CE:
Numero MDL:
Codice UNSPSC:
12000000
ID PubChem:

Prezzi e disponibilità al momento non sono disponibili

Grado

for GC derivatization

Livello qualitativo

Saggio

≥98.0% (GC)
≥98.0%

Stato

liquid

Qualità

LiChropur

Impiego in reazioni chimiche

reagent type: derivatization reagent
reaction type: Acylations

Indice di rifrazione

n20/D 1.456-1.462
n20/D 1.459 (lit.)

P. ebollizione

72-73 °C/6 mmHg (lit.)

Densità

0.883 g/mL at 25 °C (lit.)

Stringa SMILE

CC(C)(C)C(=O)CC(=O)C(C)(C)C

Cerchi prodotti simili? Visita Guida al confronto tra prodotti

Descrizione generale

Acylation, a replacement to silylation, allows the conversion of compounds that consist of active hydrogens (-OH, -SH and -NH) into esters, thioesters, and amides via the action of a carboxylic acid or derivative. The carbonyl group adjacent to the halogenated carbons is known to improve the electron capture detector (ECD) response. Acylation has several advantages:
  • It enhances the stability of compounds by protecting unstable groups.
  • It may confer volatility on substances like carbohydrates or amino acids, that have several polar groups that they are non-volatile and usually decompose on heating.
  • It facilitates the separations not possible with underivatized compounds.
  • Compounds are detectable at very low levels with an ECD.

2,2,6,6-Tetramethyl-3,5-heptanedione is a reagent used to form fragmentation-directing derivatives for GC/MS analysis.

Prodotti consigliati

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

Note legali

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Codice della classe di stoccaggio

10 - Combustible liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

152.6 °F - closed cup

Punto d’infiammabilità (°C)

67 °C - closed cup

Dispositivi di protezione individuale

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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

Elizabeth Buck et al.
Organic letters, 4(9), 1623-1626 (2002-04-27)
[reaction: see text]. In the copper salt catalyzed ether formation from aryl bromides or iodides and phenols, 2,2,6,6-tetramethylheptane-3,5-dione (TMHD) was found to greatly accelerate the ordinarily difficult reaction, making it occur under more moderate temperatures and reaction times. A series
Ultrafine 239PuO2 aerosol generation, characterization and short-term inhalation study in the rat.
G M Kanapilly et al.
Health physics, 39(3), 505-519 (1980-09-01)
R Schwartz
Federation proceedings, 41(10), 2709-2713 (1982-08-01)
The potential of the stable isotope 26Mg (natural abundance 11.01 atom %) as a biological tracer has been explored using neutron activation (NA) and mass spectrometry (MS) for detection. The high natural abundance of this isotope restricts its utility to
Franklin P Ow et al.
The journal of physical chemistry. A, 110(25), 7751-7754 (2006-06-23)
Laser photoionization and ligand photodissociation in Ln(thd)(3) (Ln = Eu, Tb, Gd; thd = 2,2,6,6-tetramethyl-3,5-heptanedionato) are studied in a molecular beam via time-of-flight mass spectrometry. The fragmentation patterns are strongly wavelength dependent. With 355 nm excitation, the mass spectrum is

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.