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
U2500
Urethane
≥99%
Synonym(s):
Carbamic acid ethyl ester, Ethyl carbamate, Ethylurethane
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
vapor density
3.07 (vs air)
Quality Segment
vapor pressure
10 mmHg ( 77.8 °C)
assay
≥99%
bp
182-184 °C (lit.)
mp
48-50 °C (lit.)
SMILES string
CCOC(N)=O
InChI
1S/C3H7NO2/c1-2-6-3(4)5/h2H2,1H3,(H2,4,5)
InChI key
JOYRKODLDBILNP-UHFFFAOYSA-N
Application
- Sex differences in cholinergic signaling affect functional outcomes for theta-gamma coordination in hippocampal subcircuits following experimental febrile status epilepticus.: This study uses urethane anesthesia to investigate the impact of sex differences on cholinergic signaling in the hippocampus, shedding light on neurological responses and potential therapeutic targets (Kloc et al., 2024).
- Postinspiratory and preBötzinger complexes contribute to respiratory-sympathetic coupling in mice before and after chronic intermittent hypoxia.: Urethane is utilized in this study to explore respiratory and sympathetic nervous system interactions, providing insights into adaptive physiological mechanisms (Karlen-Amarante et al., 2024).
- Instant clot forming and antibacterial wound dressings: Achieving hemostasis in trauma injuries with S-nitroso-N-acetylpenicillamine-tranexamic acid-propolis formulation.: This paper presents innovative urethane-based wound dressings that offer rapid clot formation and antibacterial properties, crucial for trauma care (Nguyen et al., 2024).
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This Item | |||
|---|---|---|---|
| assay ≥99% | assay ≥99.0% (GC) | assay 98% (CP) | assay ≥98.0% (GC) |
| Quality Level 200 | Quality Level - | Quality Level 200 | Quality Level 100 |
| mp 48-50 °C (lit.) | mp 46-49 °C, 48-50 °C (lit.) | mp 48.5-50 °C (lit.) | mp 46-49 °C, 48-50 °C (lit.) |
| bp 182-184 °C (lit.) | bp 182-184 °C (lit.) | bp 182-184 °C (lit.) | bp 182-184 °C (lit.) |
| vapor pressure 10 mmHg ( 77.8 °C) | vapor pressure 10 mmHg ( 77.8 °C) | vapor pressure - | vapor pressure 10 mmHg ( 77.8 °C) |
| vapor density 3.07 (vs air) | vapor density 3.07 (vs air) | vapor density - | vapor density 3.07 (vs air) |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Carc. 1B
Storage Class
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
197.6 °F - closed cup
flash_point_c
92 °C - closed cup
ppe
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
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Related Content
Product Information Sheet
Global Trade Item Number
| SKU | GTIN |
|---|---|
| U2500-250G | 04061835328604 |
| U2500-100G | 04061835328598 |
| U2500-500G | 04061837409400 |
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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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