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
113018
Crotonic acid
98%
Synonym(s):
trans-2-Butenoic acid
About This Item
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vapor density
2.97 (vs air)
Quality Level
vapor pressure
0.19 mmHg ( 20 °C)
assay
98%
autoignition temp.
744 °F
expl. lim.
15.1 %, 171 °F
2.2 %, 135 °F
bp
180-181 °C (lit.)
mp
70-72 °C (lit.)
solubility
H2O: soluble
density
1.027 g/mL at 25 °C (lit.)
functional group
carboxylic acid
SMILES string
[H]\C(C)=C(\[H])C(O)=O
InChI
1S/C4H6O2/c1-2-3-4(5)6/h2-3H,1H3,(H,5,6)/b3-2+
InChI key
LDHQCZJRKDOVOX-NSCUHMNNSA-N
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Related Categories
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This Item | 109207 | 196479 | 135577 |
|---|---|---|---|
| assay 98% | assay 99% | assay 99% | assay 98% |
| solubility H2O: soluble | solubility H2O: slightly soluble, alcohol: very soluble, diethyl ether: very soluble | solubility alcohol: soluble 1g in 120ml(lit.), chloroform: soluble 1g in 400ml(lit.), diethyl ether: soluble 1g in 100ml(lit.), water: insoluble(lit.) | solubility cold water: soluble 900 part, alcohol: freely soluble, diethyl ether: freely soluble, water: soluble (hot) |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| density 1.027 g/mL at 25 °C (lit.) | density 0.8 g/mL at 25 °C (lit.) | density - | density - |
| mp 70-72 °C (lit.) | mp -0.5 °C (lit.) | mp 214-215 °C (lit.) | mp 138-140 °C (lit.) |
| bp 180-181 °C (lit.) | bp 62-65 °C (lit.) | bp - | bp - |
General description
Application
Preparation Note
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1
Storage Class
8A - Combustible corrosive hazardous materials
wgk_germany
WGK 2
flash_point_f
190.4 °F - closed cup
flash_point_c
88 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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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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