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.
262668
Crotonaldehyde, predominantly trans
≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H2O as stabilizer
Sinonimo/i:
(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
59,20 €
100 ML
74,50 €
1 L
347,00 €
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Cambia visualizzazione
5 ML
59,20 €
100 ML
74,50 €
1 L
347,00 €
About This Item
Formula condensata:
CH3CH=CHCHO
Numero CAS:
Peso molecolare:
70.09
Numero MDL:
Codice UNSPSC:
12352100
ID PubChem:
NACRES:
NA.22
Prodotti consigliati
Densità del vapore
2.41 (vs air)
Tensione di vapore
32 mmHg ( 20 °C)
Saggio
≥99%
Stato
liquid
Temp. autoaccensione
320 °F
contiene
0.1-0.2% BHT as stabilizer
1% H2O as stabilizer
Limite di esplosione
19.5 %
Indice di rifrazione
n20/D 1.4362 (lit.)
P. ebollizione
104 °C (lit.)
Punto di fusione
−76 °C (lit.)
Solubilità
water: soluble 425.4 g/L at 20 °C
Densità
0.846 g/mL at 25 °C (lit.)
Gruppo funzionale
aldehyde
Temperatura di conservazione
2-8°C
Stringa SMILE
[H]\C(C)=C(\[H])C([H])=O
InChI
1S/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+
MLUCVPSAIODCQM-NSCUHMNNSA-N
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Descrizione generale
Applicazioni
- 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).
Avvertenze
Danger
Indicazioni di pericolo
Classi di pericolo
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
Organi bersaglio
Respiratory system
Codice della classe di stoccaggio
3 - Flammable liquids
Classe di pericolosità dell'acqua (WGK)
WGK 3
Punto d’infiammabilità (°F)
48.2 °F - closed cup
Punto d’infiammabilità (°C)
9 °C - closed cup
Dispositivi di protezione individuale
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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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
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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?
1 risposta-
Utile?
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