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
227056
N,N-Dimethylformamid
anhydrous, 99.8%
Synonym(e):
DMF, NSC 5356
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Produktname
N,N-Dimethylformamid, anhydrous, 99.8%
InChI key
ZMXDDKWLCZADIW-UHFFFAOYSA-N
InChI
1S/C3H7NO/c1-4(2)3-5/h3H,1-2H3
SMILES string
[H]C(=O)N(C)C
grade
anhydrous
vapor density
2.5 (vs air)
vapor pressure
2.7 mmHg ( 20 °C)
assay
99.8%
form
liquid
autoignition temp.
833 °F
expl. lim.
15.2 %
impurities
<0.005% water
evapn. residue
<0.0005%
refractive index
n20/D 1.430 (lit.)
pH
7 (20 °C, 200 g/L)
bp
153 °C (lit.)
mp
−61 °C (lit.)
density
0.944 g/mL (lit.)
Quality Level
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Dieser Artikel | 319937 | 5.89565 | 494488 |
|---|---|---|---|
| grade anhydrous | grade ACS reagent | grade anhydrous | grade biotech. grade |
| assay 99.8% | assay ≥99.8% | assay ≥99.8% | assay ≥99.9% |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form liquid | form liquid | form - | form liquid |
| mp −61 °C (lit.) | mp −61 °C (lit.) | mp −61 °C (lit.) | mp −61 °C (lit.) |
| refractive index n20/D 1.430 (lit.) | refractive index n20/D 1.430 (lit.) | refractive index n20/D 1.430 (lit.) | refractive index n20/D 1.430 (lit.) |
Application
General description
Packaging
Legal Information
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signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Flam. Liq. 3 - Repr. 1B
Lagerklasse
3 - Flammable liquids
wgk
WGK 2
flash_point_f
135.5 °F - closed cup
flash_point_c
57.5 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Stoffe gelten als miteinander mischbar, wenn sie sich zu einer einheitlichen Lösung auflösen. Setzen Sie ein Lesezeichen oder laden Sie unsere Mischbarkeitstabelle für gängige Laborlösungsmittel herunter.
Substances are said to be miscible in one another if they dissolve to form a uniform solution. Bookmark or download our miscibility table for common lab solvents.
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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What is the shelf-life of this product at room temperature? Unopened and opened?
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This product is not assigned an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.
For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
The shelf life of the product after opening has not been investigated and would depend on environmental and handling factors such as humidity and contamination.
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