2-Phenylpropionic acid
IUPAC: 2-phenylpropanoic acid
Plain text
Chemfused. (2026). 2-Phenylpropionic acid, CAS 492-37-5. Retrieved 2026-07-29 from https://chemfused.com/cas/492-37-5
BibTeX
@misc{chemfused-cas-492375,
title = {2-Phenylpropionic acid, CAS 492-37-5},
author = {Chemfused},
year = {2026},
url = {https://chemfused.com/cas/492-37-5},
urldate = {2026-07-29}
}
2-Phenylpropionic acid (CAS 492-37-5) is a chemical compound with molecular formula C9H10O2 and molecular weight 150.17 g/mol . GHS signal word: Warning. Hazard classifications: Health Hazard.
What is 2-Phenylpropionic acid?
- Molecular Formula
- C9H10O2
- Molecular Weight
- 150.17 g/mol
Description
Hydratropic acid is a 2-arylpropionic acid carrying a phenyl group at position 2. It is a metabolite of alpha-methylstyrene (AMS), a volatile hydrocarbon. It has a role as a human xenobiotic metabolite. It is functionally related to a phenylacetic acid.
Structure Identifiers
- SMILES
- CC(C1=CC=CC=C1)C(=O)O
- InChI
- InChI=1S/C9H10O2/c1-7(9(10)11)8-5-3-2-4-6-8/h2-7H,1H3,(H,10,11)
- InChIKey
- YPGCWEMNNLXISK-UHFFFAOYSA-N
Properties
Computed
Calculated molecular descriptors used in drug design and computational chemistry.
- Exact Mass
- 150.0681 Da
- XLogP
- 1.90
- TPSA
- 37.3 Ų
- H-Bond Donors
- 1
- H-Bond Acceptors
- 2
- Complexity
- 136
- Formal Charge
- 0
Safety information
Signal Word
GHS Pictograms
GHS07
Hazard Statements
- H315 Causes skin irritation
Precautionary Statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P271 Use only outdoors or in a well-ventilated area
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+P352 IF ON SKIN: Wash with soap and water
- P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- P305+P351+P338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing
- P321 Specific treatment (see supplemental first aid instructions on this label)
- P403+P233 Store in a well-ventilated place. Keep container tightly closed
- P405 Store locked up
- P501 Dispose of contents/container to an approved waste disposal plant
Synonyms (101)
- P0699
- s6321
- DL-PPA
- F13477
- AC-3206
- F093725
- FP35013
- PS-4663
- 492-37-5
- NSC42872
- PD099465
- STR03808
- SY004963
- 207-752-0
- 2328-24-7
- DB-021501
- MSK165922
- NSC 42872
- NSC-42872
- NSC245032
- NSC245033
- Q27121253
- SBB007855
- STL164373
- CH15E393A2
- CS-W016324
- EBC-152352
- F0001-1284
- HY-W015608
- NS00006882
- NSC 245033
- NSC-245033
- ST50824213
- Z756118128
- CHEBI:48526
- EN300-69310
- SCHEMBL3418
- CHEMBL370925
- MFCD00002650
- AKOS005206767
- RefChem:89100
- SCHEMBL297972
- SCHEMBL727901
- DTXCID20833771
- DTXSID80862027
- DTXSID90880934
- SCHEMBL1156724
- SCHEMBL4016238
- SCHEMBL4781088
- SCHEMBL4807191
Show 51 more names Show fewer names
- SCHEMBL10411845
- UNII-CH15E393A2
- EINECS 207-752-0
- Hydratropasaeure
- Hydratropic acid
- 2-Phenylpropionate
- (+-)-Hydratropasaeure
- (+-)-hydratropic acid
- 2-Phenylpropionicacid
- alpha-Phenylpropioate
- (+/-)-Hydratropic acid
- 2-Phenylpropanoic acid
- 2-Phenylpropionic acid
- Loxoprofen Impurity 12
- 2-phenyl propanoic acid
- 2-phenyl propionic acid
- 2-Phenyl-propionic acid
- (R)-(-)-Hydratropic acid
- Propanoic acid, 2-phenyl
- alpha-Phenylpropioic acid
- DL-?-phenylpropionic acid
- DL-2-Phenylpropionic Acid
- propanoic acid, 2-phenyl-
- (?)-2-Phenylpropionic acid
- a-Methylbenzeneacetic acid
- ALPHA-PHENYLPROPIONIC ACID
- YPGCWEMNNLXISK-UHFFFAOYSA-
- (+/-)2-phenylpropionic acid
- (RS)-2-phenylpropionic acid
- 2-Phenylpropionic acid, 97%
- alpha-phenyl propionic acid
- .alpha.-Phenylpropionic acid
- (+/-) 2-phenylpropionic acid
- (+/-)-2-phenylpropanoic acid
- (+/-)-2-Phenylpropionic acid
- (rac.)-2-phenylpropionic acid
- alpha-Methylphenylacetic acid
- alpha-Methylbenzeneacetic acid
- racemic 2-phenylpropionic acid
- .alpha.-Methylphenylacetic acid
- dl-.alpha.-Phenylpropionic acid
- .alpha.-Methylbenzeneacetic acid
- Benzeneacetic acid, alpha-methyl-
- Benzeneacetic acid, .alpha.-methyl-
- Benzeneacetic acid, .alpha.-methyl-, (R)-
- Benzeneacetic acid, .alpha.-methyl-, (S)-
- Hydratropic acid [MeSH: hydratropic acid]
- 2-Phenylpropionic acid [MeSH: hydratropic acid]
- racemic (+)-alpha-methyl-alpha-phenylacetic acid
- alpha-methyl-benzeneacetic acid /OD/ 2-phenylpropionic acid
- InChI=1/C9H10O2/c1-7(9(10)11)8-5-3-2-4-6-8/h2-7H,1H3,(H,10,11)
Frequently asked questions
What is the CAS number of 2-Phenylpropionic acid?
The CAS Registry Number for 2-Phenylpropionic acid is 492-37-5.
What is the IUPAC name of 2-Phenylpropionic acid?
The IUPAC name of 2-Phenylpropionic acid is 2-phenylpropanoic acid.
What is the molecular formula of 2-Phenylpropionic acid?
2-Phenylpropionic acid has the molecular formula C9H10O2 and a molecular weight of 150.17 g/mol.
What is the SMILES notation for 2-Phenylpropionic acid?
The SMILES notation for 2-Phenylpropionic acid is CC(C1=CC=CC=C1)C(=O)O.
Is 2-Phenylpropionic acid hazardous?
2-Phenylpropionic acid carries the following GHS hazard classifications: Health Hazard. Signal word: Warning.
What are other names for 2-Phenylpropionic acid?
2-Phenylpropionic acid is also known as .alpha.-Methylbenzeneacetic acid, .alpha.-Methylphenylacetic acid, .alpha.-Phenylpropionic acid, (?)-2-Phenylpropionic acid, (+-)-Hydratropasaeure.
Data sourced from PubChem CID 10296. Last updated .
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