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
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291056
Methylformiat
anhydrous, 99%
Synonym(e):
Methylformiat
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| Ihnen/SKU | Verfügbarkeit | Preis |
|---|
Über diesen Artikel
grade
anhydrous
Quality Segment
vapor density
2.1 (vs air)
vapor pressure
32.91 psi ( 55 °C), 9.47 psi ( 20 °C)
assay
99%
form
liquid
autoignition temp.
842 °F
expl. lim.
23 %
impurities
<0.005% water
evapn. residue
<0.0005%
refractive index
n20/D 1.343 (lit.)
pH
4-5 (20 °C, 200 g/L)
bp
32-34 °C (lit.)
mp
−100 °C (lit.)
density
0.974 g/mL at 20 °C (lit.)
SMILES string
[H]C(=O)OC
InChI
1S/C2H4O2/c1-4-2-3/h2H,1H3
InChI key
TZIHFWKZFHZASV-UHFFFAOYSA-N
Application
- methyl 4-chloro-2-formylbutanoate from methyl 4-chlorobutanoate via -formylation
- potassium methyl α-[(methoxyethylidene)amino]-β-hydroxyacrylate from methyl α-[(methoxyethylidene)amino]acetate
- (S)-(-)-1-formyl-2-hydroxymethylpyrrolidine from (S)-(+)-2-hydroxymethylpyrrolidine via N-formylation
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Dieser Artikel | |||
|---|---|---|---|
| grade anhydrous | grade reagent grade | grade ACS reagent, anhydrous | grade spectrophotometric grade |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 100 |
| assay 99% | assay 97% | assay ≥99% | assay ≥98% |
| form liquid | form liquid | form powder | form liquid |
| autoignition temp. 842 °F | autoignition temp. 842 °F | autoignition temp. - | autoignition temp. 842 °F |
| vapor density 2.1 (vs air) | vapor density 2.1 (vs air) | vapor density - | vapor density 2.1 (vs air) |
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signalword
Danger
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Irrit. 2 - Flam. Liq. 1 - STOT SE 1 - STOT SE 3
target_organs
Respiratory system
Lagerklasse
3 - Flammable liquids
wgk
WGK 2
flash_point_f
-2.2 °F - closed cup
flash_point_c
-19 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves
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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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