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3-Phenylpropionic acid

CAS No.
501-52-0
Chemical Name:
3-Phenylpropionic acid
Synonyms
HYDROCINNAMIC ACID;3-PHENYLPROPANOIC ACID;BENZENEPROPANOIC ACID;HYDROXYCINNAMIC ACID;Phenylpropanoic acid;Benzenepropionic acid;NSC 9272;LABOTEST-BB LT00014254;3 - styrene acrylic acid;3-Phenyl-n-propionic acid
CBNumber:
CB6230832
Molecular Formula:
C9H10O2
Molecular Weight:
150.17
MDL Number:
MFCD00002771
MOL File:
501-52-0.mol
Last updated:2025-10-13 18:39:35
Product description Number Pack Size Price
3-Phenylpropionic acid 99%, FG W288918 1 unit $56.3
3-Phenylpropionic acid 99%, FG W288918 1 unit $56.3
3-Phenylpropionic Acid 99%, FG W288918 100g $65.26
3-Phenylpropionic Acid 99%, FG W288918 1kg $196
3-Phenylpropionic Acid 99%, FG W288918 10Kg $1650
More product size

3-Phenylpropionic acid Properties

Melting point 45-48 °C (lit.)
Boiling point 280 °C (lit.)
Density 1.071 g/mL at 25 °C (lit.)
vapor pressure 0.356Pa at 25℃
refractive index 1.5408 (estimate)
FEMA 2889 | 3-PHENYLPROPIONIC ACID
Flash point >230 °F
storage temp. Sealed in dry,Room Temperature
solubility 0.6% soluble in water, soluble in alcohol, Propylene glycol, Glycerin and oils
form Liquid
pka 4.66(at 25℃)
color Clear yellow to yellow-green
Specific Gravity 1.071
Odor Very faint, warm-balsamic and sweet odor of Coumarin-Vanillin-type
Odor Type floral
biological source synthetic
Water Solubility Soluble in water
JECFA Number 646
Merck 14,4784
BRN 907515
InChIKey XMIIGOLPHOKFCH-UHFFFAOYSA-N
LogP 1.153 at 25℃
Substances Added to Food (formerly EAFUS) 3-PHENYLPROPIONIC ACID
CAS DataBase Reference 501-52-0(CAS DataBase Reference)
EWG's Food Scores 2
FDA UNII 5Q445IN5CU
NIST Chemistry Reference 3-Phenylpropanoic acid(501-52-0)
EPA Substance Registry System Hydrocinnamic acid (501-52-0)
UNSPSC Code 85151701
NACRES NA.24

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  22-24/25-37/39-26
WGK Germany  3
RTECS  DA8600000
TSCA  Yes
HS Code  29163900
NFPA 704
0
0 0

3-Phenylpropionic acid price More Price(32)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich W288918 3-Phenylpropionic acid 99%, FG 501-52-0 1 unit $56.3 2025-07-31 Buy
Sigma-Aldrich W288918 3-Phenylpropionic acid 99%, FG 501-52-0 1 unit $56.3 2025-07-31 Buy
Sigma-Aldrich W288918 3-Phenylpropionic Acid 99%, FG 501-52-0 100g $65.26 2025-07-31 Buy
Sigma-Aldrich W288918 3-Phenylpropionic Acid 99%, FG 501-52-0 1kg $196 2025-07-31 Buy
Sigma-Aldrich W288918 3-Phenylpropionic Acid 99%, FG 501-52-0 10Kg $1650 2025-07-31 Buy
Product number Packaging Price Buy
W288918 1 unit $56.3 Buy
W288918 1 unit $56.3 Buy
W288918 100g $65.26 Buy
W288918 1kg $196 Buy
W288918 10Kg $1650 Buy

3-Phenylpropionic acid Chemical Properties,Uses,Production

Description

3-Phenylpropionic acid is a carboxylic acid that belongs to the class of phenylpropanoids. Also referred as hydrocinnamic acid, the chemical is a white crystalline solid with a sweet fatty smell of rose musk cinnamon at room temperature. 3-Phenylpropionic acid is soluble in both water and alcohol. It is widely used in food additives, cosmetics, and pharmaceuticals.

Preparation

Hydrogenation of cinnamic acid is used in the preparation of 3-Phenylpropionic acid. Initially, the chemical was prepared by reduction with sodium amalgam in water by electrolysis.

Uses

Food Industry
3-Phenylpropionic acid is utilized in the food industry as a preservative as well as to maintain the original quality of aroma of frozen foods. It is also used for flavoring and restoring original color to food. 3-Phenylpropionic acid is added to shelved foods to prevent microorganisms from deteriorating the food. It also acts as an antioxidant to prolong the life of foodstuff in shelves. 3-Phenylpropionic acid is also used as a food sweetener.
3-Phenylpropionic acid acts as an emulsifier as it can keep water and oil mixtures separated. 3-Phenylpropionic acid can be added in food for technological reasons in wide range such as processing, manufacturing, packaging, treatment, transportation, and storage.
Cosmetics
3-Phenylpropionic acid is used in beautifying products such as bath gels, detergent powders, and fabric softeners as it gives a floral scent. It is also used as a flavour for mouthwashes and toothpastes.

Chemical Properties

white to off-white crystalline mass, powder or crystals and/or chunk

Chemical Properties

3-Phenylpropionic acid has a faint, sweet odor, somewhat balsamic and coumarin-like with a mildly sweet-sour, vanilla-like taste.

Occurrence

Reported found in raspberry, guava fruit, Vitis vinifera L., papaya, strawberry fruit, cinnamon, cassia leaf, cheddar cheese, cocoa, beer, cognac, white wine, red wine, special wine, rose apple, mushroom, cloudberry, Boletus edulis, fresh mango, licorice and labdanum.

Uses

Used in the compositions for the treatment of blood disorders using α-methylhydrocinnamic acid.
Hydrocinnamic acid was used in the synthesis of three medium-chain acyl-Coenzyme A′s i.e. 3-phenylpropionyl-CoA from mixed anhydrides of fatty acids.

Definition

ChEBI: A monocarboxylic acid that is propionic acid substituted at position 3 by a phenyl group.

Preparation

By reduction of cinnamic acid using sodium amalgam.

Application

3-Phenylpropionic acid is rarely, if ever, used in perfumes, but it finds some use in flavor compositions, mainly as a fixative in Vanilla imitation, in complexes as a sweetener, and in Cheese imitation flavor for its mild pungency and herbaceous character.

Synthesis Reference(s)

Tetrahedron Letters, 29, p. 5599, 1988 DOI: 10.1016/S0040-4039(00)80822-9

General Description

Hydrocinnamic acid forms complexes with uranium(VI) and has been investigated in aqueous solution by attenuated total reflection fourier transform infrared spectroscopy. Hydrocinnamic acids are the major rhizospheric compounds with known growth regulatory activity.

Purification Methods

Crystallise the acid from *benzene, CHCl3 or pet ether (b 40-60o). Dry it in a vacuum. [Beilstein 9 H 508.]

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View Lastest Price from 3-Phenylpropionic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Hydrocinnamic acid pictures 2025-10-13 Hydrocinnamic acid
501-52-0
US $31.00 / g 99.97% 10g TargetMol Chemicals Inc.
3-Phenylpropionic acid pictures 2025-10-11 3-Phenylpropionic acid
501-52-0
US $1.00 / KG 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
Dapoxetine impurity 28 pictures 2025-09-25 Dapoxetine impurity 28
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US $0.00-0.00 / mg 10mg 0.98 10g ShenZhen H&D Pharmaceutical Technology Co., LTD
Benzenepropionic acid benzenepropionicacid hydrocinnamic Phenylpropanoic acid propanoicacid,3-phenyl- propionicacid,3-phenyl- Benyl propionic acid Hydrocinamic acid 3-PHENYLPROPIONIC ACID 99+% HydrocinnamicAcid99%(Gc) RARECHEM AL BO 0168 hydrocinnamicacid,benzenepropanoicacid,3-phenyl-n-propionicacid,benzylaceticacid 3-Phenylpropionic HYDROCINNAMIC ACID 3-PHENYLPROPIONIC ACID HYDROCINNAMIC ACID Technical 3-PHENYLPROPIONIC ACID CRYSTALLINE POWDER 3-PHENYLPROPIONIC ACID, NATURAL 3-Phenylpropionic acid, Benzylacetic acid 3-Phenylpropionic acid, Benzylacetic acid, Hydrocinnamic acid 3-Phenyl-n-propionic acid 3-Phenylpropionic acid Benzylacetic acid Hydrocinnamic acid Benzenepropanoic acid 3-Phenylpropanoic acid Benzenepropionic acid Dihydrocinnamic acid Hydrocinnamic acid,99% NSC 9272 3-PhenyIpropionic acid 3-Phenyl propanic acid 3-Phenylpropionic ac HydrocinnaMic acid, 99% 100GR HydrocinnaMic acid, 99% 5GR Enalapril Impurity 11 3-PHENYLPROPANOIC ACID 3-PHENYLPROPIONIC ACID DIHYDROCINNAMIC ACID HYDROXYCINNAMIC ACID HYDROCINNAMIC ACID FEMA 2889 BETA-PHENYLPROPIONIC BETA-PHENYLPROPIONIC ACID BENZYLACETIC ACID BENZENEPROPANOIC ACID LABOTEST-BB LT00014254 3-PHENYLPROPIONIC ACID FOR SYNTHESIS Phenylpropionic aci 3-benzenepropionic acid HydrocinnaMic acid 99% 3-Phenylpropionic Acid, 97+% 3 - styrene acrylic acid Enalapril Maleate Impurity 1 Dapoxetine impurity 28 3-Phenylpropionic Acid > Black Soyabean Tar 3-phenylpropionate (hydrocinnamate) 3-phenylpropionicaci 3-PHENYL PROPIONIC ACID/501-52-0 3-Phenylpropionic acid USP/EP/BP β-Phenylpropionic acid 3-Phenylpropionsure Hydrocinnamic Acid (3-Phenylpropanoic Acid) Hydrocinnamic acid (3-Phenyl-n-propionic acid)