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Crotonaldehyde, mixture of cis and trans

Name: Crotonaldehyde, mixture of <I>cis</I> and <I>trans</I>
Brand: ALDRICH

ratio of cis- and trans-isomers (~1:20), ≥99.5% (GC)

Synonym(s):

2-Butenal, mixture of cis and trans

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About This Item

Linear Formula:

CH₃CH=CHCHO

CAS Number:

4170-30-3

Molecular Weight:

70.09

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

57648285

MDL number:

MFCD00007003

Beilstein/REAXYS Number:

1209254

Assay:

≥99.5% (GC)

Form:

liquid

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Properties

Quality Segment

200

assay

≥99.5% (GC)

form

liquid

contains

~0.1% 2,6-di-tert-butyl-4-methylphenol as stabilizer, ~1% H₂O as stabilizer

refractive index

n20/D 1.437

bp

101-102 °C (lit.)

density

0.853 g/mL at 20 °C (lit.)

functional group

aldehyde

storage temp.

2-8°C

SMILES string

C\C=C\C=O

InChI

1S/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+

InChI key

MLUCVPSAIODCQM-NSCUHMNNSA-N

Description

General description

Crotonaldehyde(2-Butenal) is an α, β-unsaturated aldehyde and extremely reactive compound. It serves as a chemical building block in the production of solvents, sorbates, and, to a lower extent, pharmaceuticals and aroma compounds. Additionally, it can be used as an alcohol denaturant, in leather tanning and in the manufacturing of rubber accelerators.

Application

Crotonaldehyde is used:

In the manufacturing of sorbic acid that are widely employed as food preservatives to avoid the food spoilage by microorganisms.

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This Item	262668	W340804	W224707
Sigma-Aldrich 27980 Crotonaldehyde, mixture of cis and trans	Sigma-Aldrich 262668 Crotonaldehyde, predominantly trans	Sigma-Aldrich W340804 Methyl dihydrojasmonate, mixture of cis and trans	Sigma-Aldrich W224707 L-Carveol, mixture of cis and trans
description ratio of cis- and trans-isomers (~1:20), ≥99.5% (GC)	description ≥99%, contains 0.1-0.2% BHT as stabilizer, 1% H₂O as stabilizer	description ≥96%, FG	description ≥95%, FG
assay ≥99.5% (GC)	assay ≥99%	assay ≥96%	assay ≥95%
Quality Level 200	Quality Level 200	Quality Level 400, 300	Quality Level 300, 400
bp 101-102 °C (lit.)	bp 104 °C (lit.)	bp 110 °C/0.2 mmHg (lit.)	bp 226-227 °C/751 mmHg (lit.)
form liquid	form liquid	form -	form -
density 0.853 g/mL at 20 °C (lit.)	density 0.846 g/mL at 25 °C (lit.)	density 0.998 g/mL at 25 °C (lit.)	density 0.958 g/mL at 25 °C (lit.)
storage temp. 2-8°C	storage temp. 2-8°C	storage temp. -	storage temp. -

Pictograms

GHS02,GHS06,GHS08,GHS05,GHS09

Signal Word

Danger

Hazard Codes

H225,H301 + H311,H315,H318,H330,H335,H341,H373,H400

Precautionary Statements

P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 2 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

3 - Flammable liquids

WGK

WGK 3

Flash Point (°F)

55.4 °F - closed cup

Flash Point (°C)

13 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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