Grundinformationen
- Standard-SMILES
C/C=C/C(=O)OCC- InChIKey
ZFDIRQKJPRINOQ-HWKANZROSA-N- Summenformel
- C6H10O2
- Durchschnittliche Molmasse
- 114,14 g/mol
- Monoisotopische Masse
- 114,06807956
Namen und Bezeichner
- Bevorzugter Name
- Ethyl trans-crotonate
- IUPAC
- ethyl (E)-but-2-enoate
- Lokaler Name
- Ethylcrotonat
- Englischer Name
- Ethyl crotonate
- Summenformel
- C6H10O2
- Molmasse
- 114.14
Namen und Synonyme
Weitere Namen anzeigen
Datenbank-Bezeichner
- CAS
10544-63-5、623-70-1- PubChem CID
- 429065
- DTXSID
DTXSID5057591- ChEMBL
CHEMBL3273403- ChEBI
CHEBI:173393- UNII
- 99YUC7A1X1
- EC Number
- 210-808-7、234-125-9
- Nikkaji
- J161.352I、J43.537F
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 1,3
- Polarare Oberfläche (TPSA)
- 26,3 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 2
- Frei drehbare Bindungen
- 3
- Schwere Atome
- 8
- Formalladung
- 0
- Komplexität
- 94
Experimentelle und physikochemische Eigenschaften
Solubility
Insoluble in water; soluble in oils
Soluble (in ethanol)
Physical Description
Ethyl crotonate appears as a clear colorless liquid with a pungent odor. Less dense than water and insoluble in water. Vapors heavier than air.
Colourless liquid; Powerful sour caramellic-fruity aroma
Kovats Retention Index
819;827;825;833;826;820;823
848;844;834;863
1153;1165;1156;1149;1165;1165;1158;1152;1169;1172;1194;1153;1156;1158;1158;1148;1150;1164;1156;1146
820;830;826;820;808;811.8;823;823;823;822;823;815;820;825
835;844;835;835;834;848;835;843;851;835;855;812;835;849.3
1158;1167;1164;1157;1161;1169;1151;1154;1153;1161;1153;1161;1166
Physikochemische Eigenschaften
- Schmelzpunkt
- 37.22 °C · 37.22°C (estimate)
- Siedepunkt
- 142 · 142-143 °C(lit.)
- Dichte
- 0.918 g/mL · 0.918 g/mL at 25 °C(lit.)
- Dampfdichte
- 3.9 · 3.9 (vs air)
- Brechungsindex
- 20 · n20/D 1.424(lit.)
- FEMA
- 3486 · 3486 | ETHYL TRANS-2-BUTENOATE
- Flammpunkt
- 36 °F · 36 °F
- storage temp.
- Flammables area
- Aggregatzustand
- Liquid
- Farbe
- Clear colorless
- Geruch (Odor)
- 10 % · at 10.00 % in dipropylene glycol. pungent fruity acrid ester
- Geruchsart
- fermented
- JECFA Number
- 1806 · 1806
- Kosmetik-Inhaltsstoffe Funktionen
- PERFUMING
- LogP
- 1.806 · 1.806 (est)
- EPA chemische Informationen
- 2 · 2-Butenoic acid, ethyl ester (10544-63-5)
Sicherheit und Regulatorisches
GHS-Klassifizierung
GHS Classification
Warning
H226 (99.7%): Flammable liquid and vapor [Warning Flammable liquids];H319 (> 99.9%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
P210, P233, P240, P241, P242, P243, P264+P265, P280, P303+P361+P353, P305+P351+P338, P337+P317, P370+P378, P403+P235, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 1551 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.;Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.
Gefahrenhinweise
Regulatory Information
Chemical: 2-Butenoic acid, ethyl ester, (E)-
Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)
Ethyl crotonate: Does not have an individual approval but may be used under an appropriate group standard
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Fire Hazards
Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:;HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.). Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids will float on water. (ERG, 2024)
· HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames.;· Vapors may form explosive mixtures with air.;· Vapors may travel to source of ignition and flash back.;· Most vapors are heavier than air. They will spread along the ground and collect in low or confined areas (sewers, basements, tanks, etc.).;· Vapor explosion hazard indoors, outdoors or in sewers.;· Those substances designated with a (P) may polymerize explosively when heated or involved in a fire.;· Runoff to sewer may create fire or explosion hazard.;· Containers may explode when heated.;· Many liquids will float on water.
Health Hazards
Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:;May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or asphyxiation, especially when in closed or confined areas. Runoff from fire control or dilution water may cause environmental contamination. (ERG, 2024)
· May cause toxic effects if inhaled or absorbed through skin.;· Inhalation or contact with material may irritate or burn skin and eyes.;· Fire will produce irritating, corrosive and/or toxic gases.;· Vapors may cause dizziness or asphyxiation, especially when in closed or confined areas.;· Runoff from fire control or dilution water may cause environmental contamination.
Reactivity Profile
ETHYL CROTONATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.
DOT Hazard Classification
Ethyl crotonate
UN1862
Class 3 Flammable and combustible liquid (49 eCFR § 173.120)
PG II: the degree of danger presented by the material is medium;For more information about the packing group assignment, please visit 49 eCFR § 173
Hazard Classes and Categories
Flam. Liq. 3 (99.7%);Eye Irrit. 2 (> 99.9%)
Flam. Liq. 2 (27.9%);Flam. Liq. 3 (72.1%);Eye Irrit. 2A (95.9%)
Flammable agents - 3rd degree
Sicherheit und Schutzausrüstung
Fire Fighting
Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:;CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.;SMALL FIRE: Dry chemical, CO2, water spray or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.;LARGE FIRE: Water spray, fog or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.;FIRE INVOLVING TANKS, RAIL TANK CARS OR HIGHWAY TANKS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks in direct contact with flames. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2024)
Accidental Release Measures
· CALL 911. Then call emergency response telephone number on shipping paper. If shipping paper not available or no answer, refer to appropriate telephone number listed on the inside back cover.;· Keep unauthorized personnel away.;· Stay upwind, uphill and/or upstream.;· Ventilate closed spaces before entering, but only if properly trained and equipped.
· ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area.;· All equipment used when handling the product must be grounded.;· Do not touch or walk through spilled material.;· Stop leak if you can do it without risk.;· Prevent entry into waterways, sewers, basements or confined areas.;· A vapor-suppressing foam may be used to reduce vapors.;· Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers.;· Use clean, non-sparking tools to collect absorbed material.;Large Spill;· Dike far ahead of liquid spill for later disposal.;· Water spray may reduce vapor, but may not prevent ignition in closed spaces.
First Aid
Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:;Refer to the "General First Aid" section. Specific First Aid: Wash skin with soap and water. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. (ERG, 2024)
General First Aid:;· Call 911 or emergency medical service.;· Ensure that medical personnel are aware of the material(s) involved, take precautions to protect themselves and avoid contamination.;· Move victim to fresh air if it can be done safely.;· Administer oxygen if breathing is difficult.;· If victim is not breathing:;-- DO NOT perform mouth-to-mouth resuscitation; the victim may have ingested or inhaled the substance.;-- If equipped and pulse detected, wash face and mouth, then give artificial respiration using a proper respiratory medical device (bag-valve mask, pocket mask equipped with a one-way valve or other device).;-- If no pulse detected or no respiratory medical device available, provide continuous compressions. Conduct a pulse check every two minutes or monitor for any signs of spontaneous respirations.;· Remove and isolate contaminated clothing and shoes.;· For minor skin contact, avoid spreading material on unaffected skin.;· In case of contact with substance, remove immediately by flushing skin or eyes with running water for at least 20 minutes.;· For severe burns, immediate medical attention is required.;· Effects of exposure (inhalation, ingestion, or skin contact) to substance may be delayed.;· Keep victim calm and warm.;· Keep victim under observation.;· For further assistance, contact your local Poison Control Center.;· Note: Basic Life Support (BLS) and Advanced Life Support (ALS) should be done by trained professionals.;Specific First Aid:;· Wash skin with soap and water.
Nonfire Spill Response
Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:;ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material.;LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2024)
Isolation and Evacuation
Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:;IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.;LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).;FIRE: If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2024)
Immediate precautionary measure;· Isolate spill or leak area for at least 50 meters (150 feet) in all directions.;Large Spill;· Consider initial downwind evacuation for at least 300 meters (1000 feet).;Fire;· If tank, rail tank car or highway tank is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.
Personal Protective Equipment (PPE)
Excerpt from ERG Guide 130 [Flammable Liquids (Water-Immiscible / Noxious)]:;Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2024)
Emergency Response Planning Guidelines
CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.;Small Fire;· Dry chemical, CO2, water spray or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.;Large Fire;· Water spray, fog or regular foam. If regular foam is ineffective or unavailable, use alcohol-resistant foam.;· Avoid aiming straight or solid streams directly onto the product.;· If it can be done safely, move undamaged containers away from the area around the fire.;Fire Involving Tanks, Rail Tank Cars or Highway Tanks;· Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles.;· Cool containers with flooding quantities of water until well after fire is out.;· Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.;· ALWAYS stay away from tanks in direct contact with flames.;· For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn.
Regulatorische Informationen
Regulatory Information
Chemical: 2-Butenoic acid, ethyl ester, (E)-
Commission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)
Ethyl crotonate: Does not have an individual approval but may be used under an appropriate group standard
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
Sicherheitsdaten
- wgk
- 2
- tsca
- TSCA listed
- ridadr
- UN 1862 3/PG 2
- hs_code
- 29161900
- RTECS-Nr.
- GQ3500000
- risk_code
- 11-34
- hazard_code
- F,C
- safety_code
- 16-26-36/37/39-45
Chemie und Industrie
Verwendung und Herstellung
Use Classification
Fragrance Ingredients
Flavoring Agents -> JECFA Flavorings Index
Anwendungen
OccurrenceReported found in Fragaria vesca. Also reported found in guava fruit, guava peel, pineapple, white wine, yellow passion fruit, fresh mango, naranjilla fruit, mussel, loganberry, apple, papaya, concord grape, strawberry, rum, cocoa, plum, kiwifruit and other natural sources.
VerwendenCrotonic Acid Ethyl Ester, is an intermediate for the preparation of various pharmaceutical compounds. It can be used for the synthesis of (+)-trans-Trikentrin A.
Darstellung
synthetischeBy esterification of crotonic acid with ethyl alcohol in the presence of concentrated H2SO4.
Vor- und nachgelagerte Produkte
Nachgelagerte Produkte
Anbieter44 Anbieter
Zugehörige Reaktionen
Verknüpfte Notizen
Wird geladen…