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2-Ethylbutyric acid

2-Ethylbutyric acid Structure
2-Ethylbutyric acid structure
CAS No.
88-09-5
Chemical Name:
2-Ethylbutyric acid
Synonyms
Acetic acid, diethyl-;FEMA 2429;2-ethylbutyric;DIETHYLACETIC ACID;Aceticacid,diethyl-;2-ETHYL BUTANOIC ACID;(C2H5)2CHCOOH;2-Ethylbutansαure;diethyl-aceticaci;Diethylessigsαure
CBNumber:
CB8436250
Molecular Formula:
C6H12O2
Molecular Weight:
116.16
MDL Number:
MFCD00002670
MOL File:
88-09-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-07-17 09:03:53
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2-Ethylbutyric acid Properties

Melting point -16--13 °C (lit.)
Boiling point 99-101 °C/18 mmHg (lit.)
Density 0.92 g/mL at 25 °C (lit.)
vapor pressure 0.08 mm Hg ( 20 °C)
refractive index n20/D 1.413(lit.)
FEMA 2429 | 2-ETHYLBUTYRIC ACID
FLAVIS Number 08.045 | 2-Ethylbutyric acid
Flash point 190 °F
storage temp. Store below +30°C.
solubility 18g/l
pka pKa: 4.751(25°C)
form clear liquid
color Colorless to Almost colorless
PH 3 (18g/l, H2O, 20℃)
Odor at 10.00 % in propylene glycol. acidic fruity whiskey dry berry
Odor Type acidic
biological source synthetic
explosive limit 1.4%(V)
Water Solubility 18 g/L (20 ºC)
Merck 14,3110
JECFA Number 257
BRN 1098634
Henry's Law Constant 6.2×100 mol/(m3Pa) at 25℃, Duchowicz et al. (2020)
Cosmetics Ingredients Functions PERFUMING
InChI 1S/C6H12O2/c1-3-5(4-2)6(7)8/h5H,3-4H2,1-2H3,(H,7,8)
InChIKey OXQGTIUCKGYOAA-UHFFFAOYSA-N
SMILES CCC(CC)C(O)=O
LogP 1.68
Substances Added to Food (formerly EAFUS) 2-ETHYLBUTYRIC ACID
FDA 21 CFR 172.515
CAS DataBase Reference 88-09-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII IDY8B990KE
NIST Chemistry Reference Butanoic acid, 2-ethyl-(88-09-5)
EPA Substance Registry System 2-Ethylbutyric acid (88-09-5)
UNSPSC Code 12352106
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Skull and Crossbones (GHS06)Health Hazard (GHS08)
GHS06,GHS08
Signal word  Danger
Hazard statements  H311-H315-H319-H373
Precautionary statements  P260-P264-P280-P302+P352+P312-P305+P351+P338-P314
target organs Blood,Liver,Kidney
PPE Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  C,Xn
Risk Statements  21-36/37/38-34
Safety Statements  26-36/37/39-45-36
RIDADR  UN 2810 6.1/PG 3
WGK Germany  1
RTECS  ET1400000
Autoignition Temperature 345 °C
TSCA  TSCA listed
HazardClass  8
PackingGroup  III
HS Code  29159080
Storage Class 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
Hazard Classifications Acute Tox. 3 Dermal
Eye Irrit. 2
Skin Irrit. 2
STOT RE 2 Oral
Toxicity LD50 orally in Rabbit: 2200 mg/kg LD50 dermal Rabbit 478 mg/kg
REACH Registrations Active
NFPA 704
1
0

2-Ethylbutyric acid price More Price(43)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W242918 2-Ethylbutyric acid ≥98%, FCC, FG 88-09-5 1 each $58 2026-04-30 Buy
Sigma-Aldrich 109959 2-Ethylbutyric acid 99% 88-09-5 1 btl $47.6 2026-04-30 Buy
Sigma-Aldrich 109959 2-Ethylbutyric acid 99% 88-09-5 1l $367 2026-04-30 Buy
Sigma-Aldrich W242918 2-Ethylbutyric acid ≥98%, FCC, FG 88-09-5 1 unit $56.3 2025-07-31 Buy
Sigma-Aldrich 109959 2-Ethylbutyric acid 99% 88-09-5 100ml $44.7 2025-07-31 Buy
Product number Packaging Price Buy
W242918 1 each $58 Buy
109959 1 btl $47.6 Buy
109959 1l $367 Buy
W242918 1 unit $56.3 Buy
109959 100ml $44.7 Buy

2-Ethylbutyric acid Chemical Properties, Uses, Production

Chemical Properties

clear colorless to light yellow liquid

Chemical Properties

2-Ethylbutyric acid has a rancid, oily-fruity, acidulous odor

Occurrence

Reported found in guava fruit, wheaten bread and cheeses (Parmesan, blue, cheddar, provolone, Romano and goat), apple, banana, grape, melon, papaya, peach, pineapple and more.

Uses

2-Ethylbutyric acid is used as the internal standard for determining volatile fatty acids (VFAs) in wastewater from the constructed wetlands. It is used in the determination of both free and fatty acids in milk and milk products by HPLC method with direct derivatisation.

Uses

2-Ethylbutyric Acid is a flavoring agent that is a clear liquid, color- less, with a rancid odor. it is miscible in alcohol and ether, sparingly soluble in water, and is obtained by chemical synthesis.

Uses

Ester formation; intermediate for drugs, dyestuffs, chemicals; flavoring.

Preparation

By catalytic oxidation of diethylacetaldehyde or by decarboxylation of diethylmalonic acid.

Definition

ChEBI: 2-Ethylbutanoic acid is a branched-chain fatty acid.

Aroma threshold values

Detection: 15 to 600 ppb

Taste threshold values

Taste characteristics at 35 ppm: acidic, fruity, tropical with a creamy aftertaste.

Safety Profile

Moderately toxic by ingestion and skin contact. An irritant to skin and mucous membranes. A severe eye irritant. See also ESTERS. Narcotic in high concentrations. Flammable liquid. To fight fire, use CO2, dry chemical, alcohol foam. When heated to decomposition it emits acrid smoke and fumes.

2-Ethylbutyric acid synthesis

97-96-1
88-09-5
Synthesis of 2-Ethylbutyric acid from 2-Ethylbutyraldehyde

2-Ethylbutyric acid Preparation Products And Raw materials

Raw materials

Diethylmalonic acid Formic acid 2-Ethyl-1-butanol 2-Ethylbutyraldehyde 3-Pentanol
Boronic acid, (2-ethylbutyl)- (9CI) 3-Chloropentane 3-Ethyl-2-pentanone Ethyl 2,2-diethylacetoacetate Pentane

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Preparation Products

Allyl 2-ethylbutyrate 2-Ethylbutylamine 3-Aminopentane-3-carboxylic acid

2-Ethylbutyric acid Suppliers

Global Suppliers ( 370)
Supplier Tel Email Country ProdList Advantage
Shanghai Kangtuo Chemical Co., Ltd. 021-69185552 13701777608 kangtuochem@163.com China 4224 55
Sanmenxia Aoke Chemical Industry Co., Ltd. 0398-3711988 13525866741 aokechem@aokeby.com China 217 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Beijing HwrkChemical Technology Co., Ltd 89508211 18501085097 sales.bj@hwrkchemical.com China 9407 55
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shijiazhuang Sdyano Fine Chemical Co., Ltd. 0311-89250318 13582355795 master@sjzsdyn.com China 2776 65
Beijing Ouhe Technology Co., Ltd 13552068683 13522913783 2355560935@qq.com China 11777 60
Supplier Advantage
Shanghai Kangtuo Chemical Co., Ltd. 55
Sanmenxia Aoke Chemical Industry Co., Ltd. 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
TCI (Shanghai) Development Co., Ltd. 81
Beijing HwrkChemical Technology Co., Ltd 55
Energy Chemical 61
Shijiazhuang Sdyano Fine Chemical Co., Ltd. 65
Beijing Ouhe Technology Co., Ltd 60

View Latest Price from 2-Ethylbutyric acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
2-Ethylbutyric Acid pictures 2026-07-17 2-Ethylbutyric Acid
88-09-5
 $29.00 98.00% 10g TargetMol Chemicals Inc.
2-Ethylbutyric acid pictures 2026-03-20 2-Ethylbutyric acid
88-09-5
 $10.00 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
2-Ethylbutyric acid pictures 2025-04-15 2-Ethylbutyric acid
88-09-5
 $65.00 1kg 99% 5000kg/week Hebei Zhuanglai Chemical Trading Co.,Ltd

2-Ethylbutyric acid Spectrum

2-Ethylbutyric acid(88-09-5)MS2-Ethylbutyric acid(88-09-5)1HNMR2-Ethylbutyric acid(88-09-5)13CNMR2-Ethylbutyric acid(88-09-5)IR12-Ethylbutyric acid(88-09-5)IR22-Ethylbutyric acid(88-09-5)Raman

88-09-5 (2-Ethylbutyric acid ) Related Search:

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(C2H5)2CHCOOH 2-ethyl-butanoicaci 2-Ethylbutansαure 2-Ethylbuttersαure 2-ethylbutyric 2-ethyl-butyricaci 2-Ethylbutyricaicd 3-Pentanecarboxylic acid 3-pentanecarboxylicacid Aceticacid,diethyl- acide2-ethylbutyrique Butanoicacid,2-ethyl- Butyric acid, 2-ethyl- Butyricacid,2-ethyl- diethyl-aceticaci Diethylessigsαure ethylbutyricacid(non-specificname) Kyselina diethyloctova 2-Ethylbutyric acid,99% 2-Ethylbutyric acid,Diethylacetic acid 2-Ethylbutyric acid, 99% 100GR 2-ETHYLBUTYRIC ACID FOR SYNTHESIS kyselinadiethyloctova Pentane-3-carboxylicacid α-Ethylbutyricacid DIETHYLACETIC ACID CARBOXYLIC ACID C6 2-ETHYL BUTANOIC ACID 2-ETHYLBUTYRIC ACID 2-ETHYL-N-BUTYRIC ACID ALPHA-ETHYLBUTYRIC ACID 2-ETHYLBUTYRIC ACID 98+% FCC 2-Ethylbutyric acid, 98+% RARECHEM AL BE 0134 a-ethylbutyric acid ETHYLBUTTERSAEURE-2 (99 P.) 2-EthylbutyricAcid> 2-Ethylbutyric acid USP/EP/BP 88-09-5 2-Ethylbutyric acid C13321500 2-EthylbutyriCacid 2-Ethylbutyric acid in Ethanol:Water=1:1 2-Ethylbutyric Acid, 10 mM in DMSO 2-Ethylbutyric acid (Standard) Acetic acid, diethyl- FEMA 2429 88-09-5 1988-9-5 1988-09-05 1988-09-5 CH3CH22CHCO2H CH3CH2C2H5CHCOOH C2H52CHCO2H 88095 CARBOXYLIC ACID Organic Building Blocks Carbonyl Compounds Carboxylic Acids Building Blocks