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262668

Sigma-Aldrich

Crotonaldehyde, predominantly trans

≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H2O as stabilizer

Synonym(s):

(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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About This Item

Linear Formula:
CH3CH=CHCHO
CAS Number:
123-73-9
Molecular Weight:
70.09
MDL number:
MFCD00007003
UNSPSC Code:
12352100
PubChem Substance ID:
24855882
NACRES:
NA.22

vapor density

2.41 (vs air)

vapor pressure

32 mmHg ( 20 °C)

Assay

≥99%

form

liquid

autoignition temp.

320 °F

contains

0.1-0.2% BHT as stabilizer
1% H2O as stabilizer

expl. lim.

19.5 %

refractive index

n20/D 1.4362 (lit.)

bp

104 °C (lit.)

mp

−76 °C (lit.)

solubility

water: soluble 425.4 g/L at 20 °C

density

0.846 g/mL at 25 °C (lit.)

storage temp.

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+

InChI key

MLUCVPSAIODCQM-NSCUHMNNSA-N

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General description

Rate coefficients for the reaction of crotonaldehyde with chlorine atoms have been determined. Reaction of crotonaldehyde with DNA has been investigated.

Application

  • 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).

Signal Word

Danger

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

48.2 °F - closed cup

Flash Point(C)

9 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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