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HCID 12993Erstellt: 26. Oktober 2026

(E)-Pent-2-en-1-al

(E)-2-pentenal · (E)-pent-2-enal · FEMA 3218 · T2 PENTENAL · 2-PENTENAL(E) · 2-(E)-pentenal · (2E)-2-Pentenal · rans-2-Pentenal

https://huagongshe.com/de/chemical/12993

Molekülstruktur von (E)-Pent-2-en-1-al

Identifikatoren & physikalische Daten

CAS No.1576-87-0
SummenformelC5H8O
Durchschnittliche Molmasse84,12 g/mol
Monoisotopische Masse84,05751488 g/mol
SMILESCCC=CC=O
InChIKeyDTCCTIQRPGSLPT-UHFFFAOYSA-N
PubChem CID12993
EC No.212-120-2
DTXSIDDTXSID9061091
Lokaler Name(E)-Pent-2-en-1-al

Chemische & physikalische Eigenschaften

XLogP1
Polarare Oberfläche (TPSA)17,1
H-Brücken-Donoren0
H-Brücken-Akzeptoren1
Frei drehbare Bindungen2
Schwere Atome6
Formalladung0
Komplexität55
StoffklassenOther Classes -> Aldehydes
DuftstoffeFragrance Ingredient (2-Pentenal) -> IFRA transparency List
LebensmittelzusatzstoffeFLAVOR ENHANCER, FLAVORING AGENT OR ADJUVANT -> FDA Substance added to food
Dichte0.850-0.856 (21 °C)0.86 g/mL at 25 °C (lit.)
AromastoffeEU Flavoring substances
LöslichkeitInsoluble in watersoluble in PG, in most fixed oilsSoluble (in ethanol)Chloroform (Soluble), Ethyl Acetate (Slightly), Methanol (Slightly)
Siedepunkt124 °C80-81 °C/160 mmHg (lit.)
Brechungsindex1.440-1.447 (21 °C)n20/D 1.440-1.446(lit.)
Physical DescriptionClear liquid with a pungent odormp = 16 deg C[MSDSonline]Colourless to light yellow liquidPungent green, fruity aroma
Schmelzpunkt-101.15°C (estimate)
FEMA3218 | 2-PENTENAL
Flammpunkt73 °F
Lagerbedingungen0-6°C
AggregatzustandLiquid
FarbeClear colorless to yellow
Geruchat 1.00 % in dipropylene glycol. pungent green fruity apple orange tomato
Geruchsartgreen
Biologische Quellesynthetic
BRN1719742
StabilitätLight Sensitive
InChI1S/C5H8O/c1-2-3-4-5-6/h3-5H,2H2,1H3/b4-3+
InChIKeyDTCCTIQRPGSLPT-ONEGZZNKSA-N
SMILESCC\C=C\C=O
LogP (Verteilungskoeffizient)1.281 (est)
CAS Datenbank1576-87-0(CAS DataBase Reference)
NIST chemische Informationen2-pentenal(E)(1576-87-0)

Sicherheit & Vorschriften

GHS-EinstufungDangerH225 (98.5%): Highly Flammable liquid and vapor [Danger Flammable liquids]P210, P233, P240, P241, P242, P243, P261, P262, P264, P264+P265, P270, P272, P273, P280, P301+P317, P302+P352, P303+P361+P353, P305+P351+P338, P316, P321, P330, P333+P317, P337+P317, P361+P364, P362+P364, P370+P378, P391, P403+P235, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 1552 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenChemical: 2-PentenalCommission Regulation (EC) No 1565/2000 (Repealed by Com. Implementing Reg. (EU) No 872/2012)2-Pentenal: Does not have an individual approval but may be used under an appropriate group standard
GefahrenübersichtMay cause irritationUse chemically protective gloves and goggles or face shield. Respiratory protection may be necessary, especially if working area not well ventilated[MSDSonline]
Hazard Classes and CategoriesFlam. Liq. 2 (98.5%)
F10
Wassergefährdungsklasse (WGK)3
UN-TransportnummerUN 1989 3/PG 2
Zollcode29121900
RTECS-Nr.SB1560000
R-Sätze (R)10-36/37/38-11
Toxizitätmic-sat 50 ng/plate EMMUEG 19,338,1992
GefahrensymboleXi,F
Sicherheitshinweise (S)29-37/39-26-16
Gefahrenklasse3Eye Irrit. 2Flam. Liq. 2Skin Irrit. 2STOT SE 3
VerpackungsgruppeII
Lagerklasse3 - Flammable liquids