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TRANS-2-PENTENOIC ACID

TRANS-2-PENTENOIC ACID structure

CAS No.: 13991-37-2

Chemical Name:: TRANS-2-PENTENOIC ACID

Synonyms: 2-PENTENOIC ACID;(E)-Pent-2-enoic acid;PENT-2-ENOIC ACID;FEMA 4193;(E)-2-pentenoate;T2 PENTENOIC ACID;RARECHEM AL BK 0159;(E)-2-PENTENOIC ACID;2-Pentenoicacid,(E)-;rans-pent-2-enoicaci

CBNumber:: CB5269170

Molecular Formula:: C5H8O2

Molecular Weight:: 100.12

MDL Number:: MFCD00002704

MOL File:: 13991-37-2.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 05:00:45

Product description	Number	Pack Size	Price
2-Pentenoic acid predominantly trans, 98%	259276	25g	$174
trans-2-Pentenoic Acid 98%	W419301	sample	$59.8
trans-2-Pentenoic Acid >95.0%(GC)	P0345	5mL	$48
trans-2-Pentenoic Acid >95.0%(GC)	P0345	25mL	$149
trans-2-Pentenoic Acid	467825	10g	$319
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TRANS-2-PENTENOIC ACID Properties

Melting point	9-11 °C(lit.)
Boiling point	106 °C20 mm Hg(lit.)
Density	0.99 g/mL at 25 °C(lit.)
refractive index	n20/D 1.452(lit.)
FEMA	4193 \| 2-PENTENOIC ACID
FLAVIS Number	08.107 \| (E)-Pent-2-enoic acid
Flash point	102 °C
storage temp.	Store below +30°C.
solubility	60g/l
form	Liquid
pka	pK1:4.70 (25°C)
color	Clear colorless to light yellow
Odor	at 100.00 %. acidic feta cheese buttery
Odor Type	cheesy
explosive limit	1.6%(V)
biological source	synthetic
JECFA Number	1804
BRN	1720312
InChI	1S/C5H8O2/c1-2-3-4-5(6)7/h3-4H,2H2,1H3,(H,6,7)/b4-3+
InChIKey	YIYBQIKDCADOSF-ONEGZZNKSA-N
SMILES	[H]\C(CC)=C(\[H])C(O)=O
LogP	1.333 (est)
CAS DataBase Reference	13991-37-2(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	1RG66883CF
EPA Substance Registry System	2-Pentenoic acid, (2E)- (13991-37-2)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS05

Signal word

Danger

Hazard statements

H314

Precautionary statements

P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363-P405

PPE

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

Hazard Codes

Risk Statements

22-34

Safety Statements

26-36/37/39-45

RIDADR

UN 3265 8/PG 3

WGK Germany

RTECS

SB2750000

Hazard Note

Harmful/Corrosive

HazardClass

PackingGroup

III

HS Code

29161900

Storage Class

8A - Combustible corrosive hazardous materials

Hazard Classifications

Skin Corr. 1B

Limited Quantities

5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)

Excepted Quantities

Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

NFPA 704

	1
3		0

TRANS-2-PENTENOIC ACID price More Price(39)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	259276	2-Pentenoic acid predominantly trans, 98%	13991-37-2	25g	$174	2026-04-30	Buy
Sigma-Aldrich	W419301	trans-2-Pentenoic Acid 98%	13991-37-2	sample	$59.8	2023-06-20	Buy
TCI Chemical	P0345	trans-2-Pentenoic Acid >95.0%(GC)	13991-37-2	5mL	$48	2026-04-30	Buy
TCI Chemical	P0345	trans-2-Pentenoic Acid >95.0%(GC)	13991-37-2	25mL	$149	2026-04-30	Buy
Usbiological	467825	trans-2-Pentenoic Acid	13991-37-2	10g	$319	2026-06-03	Buy

Product number	Packaging	Price	Buy
259276	25g	$174	Buy
W419301	sample	$59.8	Buy
P0345	5mL	$48	Buy
P0345	25mL	$149	Buy
467825	10g	$319	Buy

TRANS-2-PENTENOIC ACID Chemical Properties,Uses,Production

Chemical Properties

clear colorless to light yellow liquid

Chemical Properties

Colorless liquid; sour caramellic aroma.

Occurrence

Reported found in banana and beer.

Uses

2-Pentenoic acid has been used in preparation of new nonsteroidal human androgen receptor (hAR) agonists from an hAR antagonist pharmacophore, 2(1H)-piperidino[3,2-g]quinolinone.

Definition

ChEBI: A pent-3-enoic acid in trans- configuration.

Aroma threshold values

Medium strength odor, cheese type; recommend smelling in a 1% solution or less.

Taste threshold values

Sour acetic buttery taste at 25 ppm in water.

TRANS-2-PENTENOIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

TRANS-2-PENTEN-1-OL

TRANS-2-PENTENOIC ACID Suppliers

Global( 151)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
career henan chemical co	+86-0371-86658258 +8613203830695	factory@coreychem.com	China	29792	58
Antai Fine Chemical Technology Co.,Limited	18503026267	info@antaichem.com	CHINA	9636	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418671 +8618949823763	sales@tnjchem.com	China	34563	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52704	58
sgtlifesciences pvt ltd	+8617013299288	dj@sgtlifesciences.com	China	12373	58
PT CHEM GROUP LIMITED	+86-85511178;	peter68@ptchemgroup.com	China	35425	58
ZHEJIANG JIUZHOU CHEM CO., LTD	+86-0576225566889 +86-13454675544	admin@jiuzhou-chem.com；jamie@jiuzhou-chem.com；alice@jiuzhou-chem.com	China	12272	58
GIHI CHEMICALS CO.,LIMITED	+86-571-86217390; +8618058761490	info@gihichemicals.com	China	49962	58

Supplier	Advantage
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
career henan chemical co	58
Antai Fine Chemical Technology Co.,Limited	58
Hefei TNJ Chemical Industry Co.,Ltd.	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
sgtlifesciences pvt ltd	58
PT CHEM GROUP LIMITED	58
ZHEJIANG JIUZHOU CHEM CO., LTD	58
GIHI CHEMICALS CO.,LIMITED	58

View Lastest Price from TRANS-2-PENTENOIC ACID manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-12-01	TRANS-2-PENTENOIC ACID 13991-37-2		1kg	99%	10000KGS	Shaanxi Dideu New Materials Co. Ltd
2024-07-25	(E)-Pent-2-enoic acid 13991-37-2	$2400.00	1Kg	98	500 Kg	R&D Scientific Inc.
2020-01-10	TRANS-2-PENTENOIC ACID 13991-37-2	$1.00	1g	99.0%	100kg	Career Henan Chemical Co

TRANS-2-PENTENOIC ACID
13991-37-2
$0.00
99%
Shaanxi Dideu New Materials Co. Ltd

(E)-Pent-2-enoic acid
13991-37-2
$2400.00
98
R&D Scientific Inc.

TRANS-2-PENTENOIC ACID
13991-37-2
$1.00
99.0%
Career Henan Chemical Co

TRANS-2-PENTENOIC ACID Spectrum

TRANS-2-PENTENOIC ACID(13991-37-2)MS TRANS-2-PENTENOIC ACID(13991-37-2)¹HNMR TRANS-2-PENTENOIC ACID(13991-37-2)¹³CNMR TRANS-2-PENTENOIC ACID(13991-37-2)IR1 TRANS-2-PENTENOIC ACID(13991-37-2)Raman

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(E)-pent-2-en-1-oicacid 2-Pentenoic acid, (E)- 2-Pentenoicacid,(E)- (2E)-pent-2-enoic acid (E)-2-pentenoate trans-alpha,beta-penteneoic acid FEMA 4193 (E)-2-PENTENOIC ACID BETA-ETHYL ACRYLIC ACID TRANS-PENT-2-ENOIC ACID TRANS-2-PENTENOIC ACID RARECHEM AL BK 0159 T2 PENTENOIC ACID 2-Pentenoic acid, 98%, predominantly trans trans-Pent-2-enoic acid, 98+% 2-Pentenoic acid, (2E)- Pent-2-enoic acid 97% trans-2-Pentenoic acid, 98+% trans-2-Pentenoic acid,97% trans-2-Pentenoic acid, 90+%, remainder other isomers trans-2-Pentenoic acid, 97% 25GR TRANS-2-PENTENOIC ACID FOR SYNTHESIS 2-Pentenoic acid predominantly trans, 98% trans-2-Pentenoic Acid trans-2-PentenoicAcid> rans-pent-2-enoicaci Trans-2-Pentenoic Acid, Remainder Other Isomers (E)-Pent-2-enoic acid 2-PENTENOIC ACID PENT-2-ENOIC ACID 13991-37-2 C2H5CHCHCO2H Organic Building Blocks Building Blocks C1 to C5 Carboxylic Acids Carbonyl Compounds