In this case, the term "predominantly trans" is not specifically defined, but based on analysis of previous lots, it appears to be between 95% and 98% trans. While this cannot be guaranteed for future lots, historical data suggests this range. It could be a helpful estimation to consider.
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262668
Crotonaldehyd, vorwiegend trans
≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H2O as stabilizer
Synonym(e):
(2E)-2-Butenal, (E)-But-2-en-1-al, 2(E)-Butenal, trans-2-Buten-1-al, trans-2-Butenal, trans-Crotonal
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5 ML
58,30 €
100 ML
74,10 €
1 L
346,00 €
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Größe auswählen
Ansicht ändern
5 ML
58,30 €
100 ML
74,10 €
1 L
346,00 €
About This Item
Lineare Formel:
CH3CH=CHCHO
CAS-Nummer:
Molekulargewicht:
70.09
MDL-Nummer:
UNSPSC-Code:
12352100
PubChem Substanz-ID:
NACRES:
NA.22
Empfohlene Produkte
Dampfdichte
2.41 (vs air)
Qualitätsniveau
Dampfdruck
32 mmHg ( 20 °C)
Assay
≥99%
Form
liquid
Selbstzündungstemp.
320 °F
Enthält
0.1-0.2% BHT as stabilizer
1% H2O as stabilizer
Expl.-Gr.
19.5 %
Brechungsindex
n20/D 1.4362 (lit.)
bp
104 °C (lit.)
mp (Schmelzpunkt)
−76 °C (lit.)
Löslichkeit
water: soluble 425.4 g/L at 20 °C
Dichte
0.846 g/mL at 25 °C (lit.)
Funktionelle Gruppe
aldehyde
Lagertemp.
2-8°C
SMILES String
[H]\C(C)=C(\[H])C([H])=O
InChI
1S/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+
InChIKey
MLUCVPSAIODCQM-NSCUHMNNSA-N
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Verwandte Kategorien
Allgemeine Beschreibung
Anwendung
- Crotonaldehyde (Cis and Trans): Discusses the production and properties of crotonaldehyde, including trans isomer, via aldol condensation of acetaldehyde and catalytic methods (Grant & Jenkins, 2015).
- Modeling, simulation and analysis of a process for the production of crotonaldehyde: Analyzes the production of crotonaldehyde, highlighting the stereoisomeric forms, including trans-crotonaldehyde (Scheithauer et al., 2016).
Signalwort
Danger
Gefahreneinstufungen
Acute Tox. 1 Inhalation - Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Acute 1 - Eye Dam. 1 - Flam. Liq. 2 - Muta. 2 - Skin Irrit. 2 - STOT RE 2 - STOT SE 3
Zielorgane
Respiratory system
Lagerklassenschlüssel
3 - Flammable liquids
WGK
WGK 3
Flammpunkt (°F)
48.2 °F - closed cup
Flammpunkt (°C)
9 °C - closed cup
Persönliche Schutzausrüstung
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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F L Chung et al.
Cancer research, 44(3), 990-995 (1984-03-01)
Acrolein reacted with deoxyguanosine at pH 7 and 37 degrees to give three major products, Adducts 1 to 3, which were separated by high-performance liquid chromatography. They were identified by their ultraviolet, mass, and nuclear magnetic resonance spectra, by the
Reactions of acrolein, crotonaldehyde and pivalaldehyde with Cl atoms: structure-activity relationship and comparison with OH and NO3 reactions.
Ullerstam M, et al.
Physical Chemistry Chemical Physics, 3(6), 986-992 (2001)
Seung Eun Lee et al.
PloS one, 7(7), e41676-e41676 (2012-08-01)
Crotonaldehyde, an alpha, beta-unsaturated aldehyde present in cigarette smoke, is an environmental pollutant and a product of lipid peroxidation. It also produces adverse effects to humans and is considered as a risk factor for various diseases. Heme oxygenase-1 (HO-1) plays
Xing-Yu Liu et al.
Toxicology letters, 197(2), 113-122 (2010-05-18)
Crotonaldehyde is an environment pollutant and lipid peroxidation product. Crotonaldehyde produces adverse effects to humans and serves as a risk factor for human pulmonary diseases. Like acrolein and 4-hydroxynonenal, crotonaldehyde seems likely to alter many cell signaling cascades, including inflammatory
Xing-yu Liu et al.
Toxicology letters, 195(1), 90-98 (2010-02-16)
Crotonaldehyde is a widespread environmental pollutant and lipid peroxidation product. Crotonaldehyde is a risk factor for many diseases (e.g., chronic pulmonary inflammation). However, its toxicity and its mechanism of action have not been thoroughly investigated. The purpose of this study
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What does "predominantly trans" mean for product 262668? Is there any guidance available on the amount of trans compared to cis?
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