ChemicalBook >> CAS DataBase List >>TRANS-2-PENTENAL

TRANS-2-PENTENAL

CAS No.
764-39-6
Chemical Name:
TRANS-2-PENTENAL
Synonyms
2-pentenal;FEMA 3218;2-Pentanal;T2 PENTENAL;Pent-2-enal;PENTENE-2-AL;2-penten-1-al;TRANS-2-PENTEN-1-AL;TRANS-2-PENTENAL USP/EP/BP;gamma-methylcrotonaldehyde
CBNumber:
CB7226070
Molecular Formula:
C5H8O
Molecular Weight:
84.12
MDL Number:
MFCD00009615
MOL File:
764-39-6.mol
Last updated:2026-05-28 02:56:44

TRANS-2-PENTENAL Properties

Melting point -101.15°C (estimate)
Boiling point 80-81 °C160 mm Hg(lit.)
Density 0.86 g/mL at 25 °C(lit.)
refractive index n20/D 1.440-1.446(lit.)
FEMA 3218 | 2-PENTENAL
FLAVIS Number 05.102 | Pent-2-enal
Flash point 73 °F
Odor at 1.00 % in dipropylene glycol. pungent green apple orange tomato
Odor Type green
JECFA Number 1364
LogP 1.281 (est)
Substances Added to Food (formerly EAFUS) 2-PENTENAL
EWG's Food Scores 1
FDA UNII 7A4R3CQA2T
EPA Substance Registry System 2-Pentenal (764-39-6)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)Flame (GHS02)Environment (GHS09)Skull and Crossbones (GHS06)
GHS07,GHS02,GHS09,GHS06
Signal word  Danger
Hazard statements  H302-H225-H411-H317-H311-H319
Precautionary statements  P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378-P403+P235-P501-P264-P270-P301+P312-P330-P501-P280-P302+P352-P312-P322-P361-P363-P405-P501-P264-P280-P305+P351+P338-P337+P313P
Hazard Codes  Xi
Risk Statements  10-36/37/38
Safety Statements  29
RIDADR  UN 1989 3/PG 2
WGK Germany  3
RTECS  SB1560000
10
TSCA  TSCA listed
Toxicity msc-ham:lng 300 mmol/L MUREAV 244,153,90

TRANS-2-PENTENAL price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation FFG0002017 TRANS-2-PENTENAL 95.00% 764-39-6 1G $628.68 2021-12-16 Buy
American Custom Chemicals Corporation FFG0002017 TRANS-2-PENTENAL 95.00% 764-39-6 5G $869.55 2021-12-16 Buy
American Custom Chemicals Corporation FFG0002017 TRANS-2-PENTENAL 95.00% 764-39-6 10G $1233.37 2021-12-16 Buy
Product number Packaging Price Buy
FFG0002017 1G $628.68 Buy
FFG0002017 5G $869.55 Buy
FFG0002017 10G $1233.37 Buy

TRANS-2-PENTENAL Chemical Properties, Uses, Production

Chemical Properties

2-Pentenal has a pungent, green, apple, orange, tomato odor.

Occurrence

Reported found in aqueous orange essence (trans-form); as a flavor component in cognac oil, in Chrysocoris stolli, in tomato aroma, in the autooxidation of cod liver oil, in peas, as a flavoring component of reverted soybean oil, in salmon oil, in potato chips during storage, in butterfat fishy flavor. Also reported found in strawberry, cooked potato, wheat bread, parmesan cheese, butter, caviar, fatty fish, cooked beef, tea, peanuts, peas, trassi, mango, raspberry, pumpkin, Bourbon vanilla, oysters and loganberry.

Preparation

By treating β-phenoxyacrolein with secondary amines, Grignard reagent and active methylene compounds; by heating 1-ethoxy-1,3-pentadiene with H3PO4 at 80°C; from cis- and trans-but-2-ene-1,4-diol and SOCl2, followed by treatment of the chloroalcohol with methyl magnesium bromide and final oxidation with MnO2.

Definition

ChEBI: An enal consisting of pent-2-ene having an oxo group at the 1-position

Safety Profile

Poison by intraperitoneal route. Mutation data reported. Whenheated to decomposition it emits acrid smoke and irritating fumes.

TRANS-2-PENTENAL Preparation Products And Raw materials

Raw materials

Preparation Products

TRANS-2-PENTENAL Suppliers

Global Suppliers ( 24)
Supplier Tel Email Country ProdList Advantage
Shenzhen Regent Biochemical Technology Co., Ltd. 0755-85201366 18938635012 sales@regentsciences.com China 9382 58
CD Chemical Group Limited +86-13651442114 info@codchem.com China 17253 58
Hefei TNJ Chemical Industry Co.,Ltd. +86-0551-65418671 +86-189 4982 3763 sales@tnjchem.com China 34526 58
Dayang Chem (Hangzhou) Co.,Ltd. +86-0571-88938639 17705817739 info@dycnchem.com China 52451 58
Shaanxi Dideu Medichem Co. Ltd +86-29-81139210 +86-17392587031 1059@dideu.com China 9689 58
SIMAGCHEM CORP +86-5922680277 +86-13806087780 sale@simagchem.com China 17339 58
Block Chemical Technology (Shanghai) Co., LTD 021-20432219 13918097649 li_jinfei@acblock-lab.com China 9967 58
Wuhan Yuqing Jiaheng Pharmaceutical Co., Ltd. 027-83855312 17771813295 13377865312 2668571332@qq.com China 7489 58
Hubei Shishun Biotechnology Co. Ltd 027-59223025 15107168801 1718480011@qq.com China 9402 58
Hubei Wande Chemical Co., Ltd 15377098680 15377098680 1148280011@qq.com China 9436 58
2-Pentanal gamma-methylcrotonaldehyde Pent-2-enal FEMA 3218 T2 PENTENAL TRANS-2-PENTEN-1-AL PENTENE-2-AL TRANS-2-PENTENAL USP/EP/BP 2-penten-1-al 2-pentenal 764-39-6 Building Blocks Aldehydes Carbonyl Compounds C1 to C6 Organic Building Blocks ALDEHYDE