Global Information Lookup Global Information

Crotonaldehyde information


Crotonaldehyde[1]
Skeletal formula of crotonaldehyde
Ball-and-stick model of (Z)-crotonaldehyde
Names
IUPAC name
(2E)-but-2-enal
Other names
Crotonaldehyde
Crotoinic aldehyde
β-Methacrolein
β-Methyl acrolein
2-butenal
Propylene aldehyde
Identifiers
CAS Number
  • 4170-30-3 (E/Z) checkY
  • 123-73-9 (E) checkY
  • 15798-64-8 (Z) checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:41607 checkY
ChEMBL
  • ChEMBL1086445 checkY
ChemSpider
  • 394562 checkY
DrugBank
  • DB04381 checkY
ECHA InfoCard 100.021.846 Edit this at Wikidata
EC Number
  • 204-647-1
IUPHAR/BPS
  • 6288
KEGG
  • C19377 ☒N
PubChem CID
  • 447466
RTECS number
  • GP9499000
UNII
  • 9G72074TUW (E/Z) checkY
  • 6PUW625907 (E) checkY
  • RB9WCA91QT (Z) checkY
UN number 1143
CompTox Dashboard (EPA)
  • DTXSID8024864 Edit this at Wikidata
InChI
  • InChI=1S/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+ checkY
    Key: MLUCVPSAIODCQM-NSCUHMNNSA-N checkY
  • InChI=1/C4H6O/c1-2-3-4-5/h2-4H,1H3/b3-2+
    Key: MLUCVPSAIODCQM-NSCUHMNNBQ
SMILES
  • O=C/C=C/C
Properties
Chemical formula
 C4H6O
Molar mass 70.091 g·mol−1
Appearance colourless liquid
Odor pungent, suffocating odor
Density 0.846 g/cm3
Melting point −76.5 °C (−105.7 °F; 196.7 K)
Boiling point 104.0 °C (219.2 °F; 377.1 K)
Solubility in water
 18% (20°C)[2]
Solubility very soluble in ethanol, ethyl ether, acetone
soluble in chloroform
miscible in benzene
Vapor pressure 19 mmHg (20°C)[2]
Refractive index (nD)
 1.4362
Hazards
GHS labelling:
Pictograms
 GHS02: FlammableGHS05: CorrosiveGHS06: ToxicGHS07: Exclamation markGHS08: Health hazardGHS09: Environmental hazard
Signal word
 Danger
Hazard statements
 H225, H301, H310, H311, H315, H318, H330, H335, H341, H373, H400
Precautionary statements
 P201, P202, P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P270, P271, P273, P280, P281, P284, P301+P310, P302+P350, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P308+P313, P310, P312, P314, P320, P321, P322, P330, P332+P313, P361, P362, P363, P370+P378, P391, P403+P233, P403+P235, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 4: Very short exposure could cause death or major residual injury. E.g. VX gasFlammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasolineInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazards (white): no code
4
3
2
Flash point 13 °C (55 °F; 286 K)
Autoignition
temperature
 207 °C (405 °F; 480 K)
Explosive limits 2.1-15.5%
Lethal dose or concentration (LD, LC):
LC50 (median concentration)
 600 ppm (rat, 30 min)
1375 ppm (rat, 30 min)
519 ppm (mouse, 2 hr)
1500 ppm (rat, 30 min)[3]
LCLo (lowest published)
 400 ppm (rat, 1 hr)[3]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 2 ppm (6 mg/m3)[2]
REL (Recommended)
 TWA 2 ppm (6 mg/m3)[2]
IDLH (Immediate danger)
 50 ppm[2]
Related compounds
Related alkenals
 Acrolein

cis-3-hexenal
(E,E)-2,4-Decadienal

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)
Infobox references

Crotonaldehyde is a chemical compound with the formula CH3CH=CHCHO. The compound is usually sold as a mixture of the E- and Z-isomers, which differ with respect to the relative position of the methyl and formyl groups. The E-isomer is more common (data given in Table is for the E-isomer). This lachrymatory liquid is moderately soluble in water and miscible in organic solvents. As an unsaturated aldehyde, crotonaldehyde is a versatile intermediate in organic synthesis. It occurs in a variety of foodstuffs, e.g. soybean oils.[4]

  1. ^ Merck Index, 11th Edition, 2599
  2. ^ a b c d e NIOSH Pocket Guide to Chemical Hazards. "#0157". National Institute for Occupational Safety and Health (NIOSH).
  3. ^ a b "Crotonaldehyde". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  4. ^ R. P. Schulz; J. Blumenstein; C. Kohlpaintner (2005). "Crotonaldehyde and Crotonic Acid". Ullmann's Encyclopedia of Industrial Chemistry. Weinheim: Wiley-VCH. doi:10.1002/14356007.a08_083. ISBN 978-3527306732.

and 24 Related for: Crotonaldehyde information

Request time (Page generated in 0.5458 seconds.)

Crotonaldehyde

Last Update:

Crotonaldehyde is a chemical compound with the formula CH3CH=CHCHO. The compound is usually sold as a mixture of the E- and Z-isomers, which differ with...

Word Count : 399

Crotyl alcohol

Last Update:

synthesized by the hydrogenation of crotonaldehyde. The compound is of little commercial interest. Crotyl Allyl alcohol Crotonaldehyde Crotonic acid Merck Index...

Word Count : 95

EPA list of extremely hazardous substances

Last Update:

chloride Cobalt carbonyl Colchicine Coumaphos Cresol, -o Crimidine Crotonaldehyde Crotonaldehyde, (E)- Cyanogen bromide Cyanogen iodide Cyanophos Cyanuric fluoride...

Word Count : 825

Crotonic acid

Last Update:

of butyric acid. Crotonic acid produced industrially by oxidation of crotonaldehyde:: 230  CH3CH=CHCHO + 1/2 O2 → CH3CH=CHCO2H A number of other methods...

Word Count : 733

Sorbic acid

Last Update:

traditional route to sorbic acid involves condensation of malonic acid and crotonaldehyde. It can also be prepared from isomeric hexadienoic acids, which are...

Word Count : 753

Butyraldehyde

Last Update:

time, it was produced industrially by the catalytic hydrogenation of crotonaldehyde, which is derived from acetaldehyde. Butyraldehyde undergoes reactions...

Word Count : 365

Crotyl group

Last Update:

in which the crotyl group forms base carbon chain: crotyl alcohol, crotonaldehyde, crotonic acid, and crotyl acrylate are examples. Crotylate (crotyl...

Word Count : 195

C4H6O

Last Update:

The molecular formula C4H6O may refer to: Crotonaldehyde Cyclobutanone Dihydrofurans 2,3-Dihydrofuran 2,5-Dihydrofuran Divinyl ether Methacrolein Methyl...

Word Count : 55

Acetaldehyde

Last Update:

an important precursor to pyridine derivatives, pentaerythritol, and crotonaldehyde. Urea and acetaldehyde combine to give a useful resin. Acetic anhydride...

Word Count : 5159

Potassium sorbate

Last Update:

sorbic acid is produced in a two-step process via the condensation of crotonaldehyde and ketene. Potassium sorbate is used to inhibit molds and yeasts in...

Word Count : 1322

Malic acid

Last Update:

Tartaric acid Fumaric acid Related compounds Butanol Butyraldehyde Crotonaldehyde Sodium malate Except where otherwise noted, data are given for materials...

Word Count : 1320

Neocuproine

Last Update:

with crotonaldehyde diacetate. An alternate synthesis involves the condensation of o-phenylenediamine, m-nitrobenzenesulphonate, and crotonaldehyde diacetate...

Word Count : 569

Tilidine

Last Update:

effect can lead to a further loss of activity. The condensation between Crotonaldehyde (1) and dimethylamine (2) give dimethylaminobutadiene [139943-10-5]...

Word Count : 1245

Wacker process

Last Update:

top, while water and higher-boiling byproducts, such as acetic acid, crotonaldehyde or chlorinated acetaldehydes, are withdrawn together with acetaldehyde...

Word Count : 3872

Crotonylidene diurea

Last Update:

Crotonylidene diurea (CDU) is an organic compound formed by the condensation of crotonaldehyde with two equivalents of urea. It is a white, water-soluble solid. CDU...

Word Count : 68

IARC group 2B

Last Update:

cobalt(II) salts Coconut oil diethanolamine condensate para-Cresidine Crotonaldehyde Cumene Cupferron Cycasin Dacarbazine Dantron (Chrysazin, 1,8-Dihydroxyanthraquinone)...

Word Count : 1436

Electrophilic aromatic substitution

Last Update:

hydroxyalkylation: In another alkylation N-methylpyrrole reacts with crotonaldehyde catalyzed by trifluoroacetic acid modified with a chiral imidazolidinone:...

Word Count : 2089

Construction of electronic cigarettes

Last Update:

e-liquids∗ Company Code Formal­dehyde Acetal­dehyde Propional­dehyde Crotonal­dehyde Butyral­dehyde Benzal­dehyde Hexal­dehyde LOD 0.060 0.030 0.043 0.053...

Word Count : 12829

Immediately dangerous to life or health

Last Update:

cresol 106-44-5 0031 p-Cresol 1107.5 mg/m3 250 ppm cresol 4170-30-3 0241 Crotonaldehyde 143.5 mg/m3 50 ppm 123739 98-82-8 0170 Cumene 4428 mg/m3 900 ppm 98828...

Word Count : 683

Tobacco smoke

Last Update:

70–100 μg sufficient   Acetaldehyde 1.4–7.4 μg 18–1400 μg sufficient   Crotonaldehyde 0.2–2.4 μg 10–20 μg     Miscellaneous organic compounds Benzene   12–48...

Word Count : 1101

Heated tobacco product

Last Update:

2–154.1 89.5–93.9 Formaldehyde μg/stick 4.7–5.3 29.3–130.3 82.9–96.2 Crotonaldehyde μg/stick <3.0 32.7–70.8 – 1.3-Butadiene μg/stick 0.20–0.2 77.0–116.7...

Word Count : 12430

Quinaldine

Last Update:

from aniline and paraldehyde via Skraup synthesis or from aniline and crotonaldehyde via Doebner-von Miller variation of the Skraup reaction. Hydrogenation...

Word Count : 280

Acrolein

Last Update:

data sheet (SDS) Sigma-Aldrich SDS Related compounds Related alkenals Crotonaldehyde cis-3-Hexenal (E,E)-2,4-Decadienal Except where otherwise noted, data...

Word Count : 2119

Composition of electronic cigarette aerosol

Last Update:

propylene glycol is replaced by glycerin. Acetol, beta-nicotyrine, butanal, crotonaldehyde, glyceraldehyde, glycidol, glyoxal, dihydroxyacetone, dioxolanes, lactic...

Word Count : 12826
PDF Search Engine © AllGlobal.net