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Sigma-Aldrich

Diisopropilamida de litio solution

Lithium diisopropylamide solution

1.0 M in THF/hexanes

Sinónimos:

LDA

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About This Item

Fórmula lineal:
[(CH3)2CH]2NLi
Número de CAS:
4111-54-0
Peso molecular:
107.12
Beilstein:
3655042
Número MDL:
MFCD00064449
Código UNSPSC:
12352001
ID de la sustancia en PubChem:
329767712
NACRES:
NA.22
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Formulario

liquid

Nivel de calidad

200

concentración

1.0 M in THF/hexanes

densidad

0.719 g/mL at 25 °C

grupo funcional

amine

temp. de almacenamiento

2-8°C

cadena SMILES

[Li]N(C(C)C)C(C)C

InChI

1S/C6H14N.Li/c1-5(2)7-6(3)4;/h5-6H,1-4H3;/q-1;+1

Clave InChI

ZCSHNCUQKCANBX-UHFFFAOYSA-N

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Descripción general

This material is in a solution of THF/Hexanes (ca. 1:7 ratio, respectively)

Aplicación

Titanium-ate enolates prepared from ketones by Ti(OiPr)4 and LDA underwent efficient radical trifluoromethylation providing trifluoromethyl ketones in good yield.[1] Used in directed ortho-lithiation of arylsulfonyloxazolidinones to prepare N-substituted saccharin analogs.[2]

Envase

The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product.

Información legal

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

Palabra de señalización

Danger

Clasificaciones de peligro

Aquatic Chronic 2 - Asp. Tox. 1 - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - Pyr. Liq. 1 - Repr. 2 - Skin Corr. 1B - STOT RE 1 Inhalation - STOT SE 3

Órganos de actuación

Central nervous system, Nervous system, Respiratory system

Riesgos supl.

EUH014,EUH019

Código de clase de almacenamiento

4.2 - Pyrophoric and self-heating hazardous materials

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

-7.6 °F - closed cup

Punto de inflamabilidad (°C)

-22 °C - closed cup

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Certificados de análisis (COA)

Lot/Batch Number
SHBS2486
SHBR7019
SHBR2555
SHBP9072
SHBP0444

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Subjective ratings for age of acquisition, concreteness, affective valence, and many other variables are an important element of psycholinguistic research. However, even for well-studied languages, ratings usually cover just a small part of the vocabulary. A possible solution involves using
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Class prediction models have been shown to have varying performances in clinical gene expression datasets. Previous evaluation studies, mostly done in the field of cancer, showed that the accuracy of class prediction models differs from dataset to dataset and depends
Erwei Yin et al.
IEEE transactions on neural systems and rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society, 23(4), 693-701 (2015-02-24)
The present study proposes a hybrid brain-computer interface (BCI) with 64 selectable items based on the fusion of P300 and steady-state visually evoked potential (SSVEP) brain signals. With this approach, row/column (RC) P300 and two-step SSVEP paradigms were integrated to
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Questions

1–2 of 2 Questions  

  1. 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

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  2. 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

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