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/418/501/product-dating-information-06-25-mk.pdf
319937
N,N-Dimethylformamid
ACS reagent, ≥99.8%
Synonym(e):
DMF, NSC 5356
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Qualität
ACS reagent
Qualitätsniveau
Dampfdichte
2.5 (vs air)
Dampfdruck
2.7 mmHg ( 20 °C)
Assay
≥99.8%
Form
liquid
Selbstzündungstemp.
833 °F
Expl.-Gr.
15.2 %
dilution
(for analytical testing)
Verunreinigungen
≤0.0005 meq/g Titr. acid
≤0.003 meq/g Titr. base
≤0.15% water
Abdampfrückstand
≤0.005%
Farbe
clear
APHA: ≤15
Brechungsindex
n20/D 1.430 (lit.)
pH-Wert
7 (20 °C, 200 g/L)
bp
153 °C (lit.)
mp (Schmelzpunkt)
−61 °C (lit.)
Dichte
0.944 g/mL (lit.)
SMILES String
[H]C(=O)N(C)C
InChI
1S/C3H7NO/c1-4(2)3-5/h3H,1-2H3
InChIKey
ZMXDDKWLCZADIW-UHFFFAOYSA-N
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Dieser Artikel | 33120 | D158550 | D4551 |
|---|---|---|---|
| grade ACS reagent | grade ACS reagent, puriss. p.a. | grade - | grade for molecular biology |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| assay ≥99.8% | assay ≥99.8% (GC) | assay ≥99% | assay ≥99% |
| form liquid | form liquid | form liquid | form liquid |
| bp 153 °C (lit.) | bp 152-154 °C, 153 °C (lit.) | bp 153 °C (lit.) | bp 153 °C (lit.) |
| impurities ≤0.0005 meq/g Titr. acid, ≤0.15% water, ≤0.003 meq/g Titr. base | impurities ≤0.003% free acid (as CH3COOH), ≤0.005% free alkali (as NH3), ≤0.005% non-volatile matter, ≤0.1% water (Karl Fischer) | impurities ≤0.1% Water (Karl Fischer) | impurities ≤0.5% water |
Allgemeine Beschreibung
Premium ACS Solvents: Our solvents meet or exceed the stringent standards set by the American Chemical Society, ensuring high quality and reliability for your laboratory applications.
Replicable and Publishable Results: Designed for consistency, our solvents deliver results that can be reliably reproduced, making them ideal for research that requires publication.
Versatile Applications: Suitable for routine chemical synthesis, drying, purification, and critical labware cleaning, our solvents cater to a wide range of research needs in the laboratory.
Anwendung
- A formylating agent for organometallic compounds.
- A reactant to prepare Vilsmeier reagent by reacting with phosphorus oxychloride.
- A reagent for amination of aryl chlorides in the presence of potassium t-butoxide.
- A reducing agent for metal salts to prepare metal colloids.
- A catalyst for the regioselective silylation of unprotected carbohydrates.
DMF can also be used in the following:
- DMF-Phosgene catalytic system is used to prepare alkyl halides from alcohols.
- DMF-POCl3 is used to convert acyclic and cyclic enolizable ketones to β-chloro-α, β-unsaturated aldehydes.
- DMF-POCl3 is used to synthesize quinoline-3-carbaldehydes from acylanilides.
- DMF-SOCl2 combination is used to dehydrate oximes to nitriles.
- DMF-Ag2O converts α-bromopropionamides to oxazolidinones.
- DMF is frequently used as a solvent in many chemical reactions, which require a high solvency power.
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Signalwort
Danger
H-Sätze
Gefahreneinstufungen
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 1B
Lagerklassenschlüssel
3 - Flammable liquids
WGK
WGK 2
Flammpunkt (°F)
135.5 °F - closed cup
Flammpunkt (°C)
57.5 °C - closed cup
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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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