U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry ACHIRAL
Molecular Formula C6H8O2
Molecular Weight 112.1265
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of METHYLCYCLOPENTENOLONE

SMILES

CC1=C(O)C(=O)CC1

InChI

InChIKey=CFAKWWQIUFSQFU-UHFFFAOYSA-N
InChI=1S/C6H8O2/c1-4-2-3-5(7)6(4)8/h8H,2-3H2,1H3

HIDE SMILES / InChI

Molecular Formula C6H8O2
Molecular Weight 112.1265
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Methylcyclopentenolone (also known as methyl cyclopentenolone), a flavor compound that is used in the standard olfactory acuity test in patients with smell disorders.

Approval Year

PubMed

PubMed

TitleDatePubMed
Multicomponent analysis of replacement liquids of electronic cigarettes using chromatographic techniques.
2015-05
Olfactory dysfunction in Parkinson's disease: Benefits of quantitative odorant examination.
2010-07-21
Olfactory event-related potentials in normal subjects and patients with smell disorders.
2003-10
[Occupational impairment of the olfactory sense of chromate producing workers (author's transl)].
1981-11
Substance Class Chemical
Created
by admin
on Mon Mar 31 18:40:11 GMT 2025
Edited
by admin
on Mon Mar 31 18:40:11 GMT 2025
Record UNII
627E92X64B
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
METHYLCYCLOPENTENOLONE
FHFI  
Common Name English
METHYL CYCLOPENTENOLONE
FCC  
Preferred Name English
MCP
Common Name English
2-HYDROXY-3-METHYL-2-CYCLOPENTEN-1-ONE
Systematic Name English
1,2-CYCLOPENTANEDIONE, 3-METHYL-
Systematic Name English
MAPLE LACTONE
Common Name English
NSC-133445
Code English
METHYLCYCLOPENTENOLONE [FHFI]
Common Name English
3-METHYLCYCLOPENTANE-1,2-DIONE
Systematic Name English
3-METHYL-1,2-CYCLOPENTANEDIONE
Systematic Name English
FEMA NO. 2700
Code English
METHYL CYCLOPENTENOLONE [FCC]
Common Name English
3-METHYL-2-CYCLOPENTEN-2-OL-1-ONE
Common Name English
Classification Tree Code System Code
JECFA EVALUATION METHYLCYCLOPENTENOLONE
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
EPA PESTICIDE CODE 4049
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
CFR 21 CFR 172.515
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
Code System Code Type Description
EPA CompTox
DTXSID4035128
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
CAS
80-71-7
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
ECHA (EC/EINECS)
201-303-2
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
FDA UNII
627E92X64B
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
WIKIPEDIA
2-Hydroxy-3-methyl-2-cyclopenten-1-one
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
MESH
C471838
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
ECHA (EC/EINECS)
212-154-8
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
ALTERNATIVE
EVMPD
SUB71266
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
SMS_ID
100000135479
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
NSC
133445
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
JECFA MONOGRAPH
95
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY
CAS
765-70-8
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
ALTERNATIVE
PUBCHEM
6660
Created by admin on Mon Mar 31 18:40:11 GMT 2025 , Edited by admin on Mon Mar 31 18:40:11 GMT 2025
PRIMARY