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
M50850
2-Methylimidazole
99%
Sinônimo(s):
2-Methylglyoxaline
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| Para você/SKU | Disponibilidade | Preço |
|---|
Sobre este item
vapor pressure
<1 mmHg ( 0 °C)
Quality Segment
assay
99%
bp
267-268 °C (lit.)
mp
142-143 °C (lit.)
SMILES string
Cc1ncc[nH]1
InChI
1S/C4H6N2/c1-4-5-2-3-6-4/h2-3H,1H3,(H,5,6)
InChI key
LXBGSDVWAMZHDD-UHFFFAOYSA-N
Application
- A coordination regulator to fabricate 2D metal-organic framework-5 (MOF-5) nanosheet, which is used as an efficient catalyst for Knoevenagel condensation reaction.
- An alkaline inducer in the synthesis of amorphous FeCoNi ternary hydroxide nanosheets applicable as an active electrocatalyst for oxygen evolution reaction.
- A solvent system in combination with water to synthesize zeolitic imidazolate frameworks-8 (ZIF-8) membrane for the potential application in gas separation.
1 of 1
Este Item | |||
|---|---|---|---|
| assay 99% | assay 99% | assay 99% | assay 99% |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 200 |
| bp 267-268 °C (lit.) | bp - | bp 204-210 °C (lit.) | bp 70-72 °C/0.2 mmHg (lit.) |
| mp 142-143 °C (lit.) | mp 127-130 °C (lit.) | mp 54-58 °C (lit.) | mp 16-20 °C (lit.) |
| vapor pressure <1 mmHg ( 0 °C) | vapor pressure - | vapor pressure - | vapor pressure - |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Repr. 1B - Skin Corr. 1C
Classe de armazenamento
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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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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Dear concern, Good day!! I would like to know about the shelf life of product, on which there is no expiry date mentioned on label. example: Name: 2-Methylimidazole 99% Batch no.: 0000019207 Cas no.: 693-98-1 On COA there is no expiry.
1 answer-
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.
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