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

Details

Stereochemistry RACEMIC
Molecular Formula C3H8O2
Molecular Weight 76.0944
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PROPYLENE GLYCOL

SMILES

CC(O)CO

InChI

InChIKey=DNIAPMSPPWPWGF-UHFFFAOYSA-N
InChI=1S/C3H8O2/c1-3(5)2-4/h3-5H,2H2,1H3

HIDE SMILES / InChI

Molecular Formula C3H8O2
Molecular Weight 76.0944
Charge 0
Count
Stereochemistry RACEMIC
Additional Stereochemistry No
Defined Stereocenters 0 / 1
E/Z Centers 0
Optical Activity ( + / - )

PROPYLENE GLYCOL is a component of SYSTANE® Lubricant. It is used for the temporary relief of burning and irritation due to dryness of the eye.

Approval Year

Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Palliative
SYSTANE LUBRICANT

Approved Use

Uses: - For the temporary relief of burning and irritation due to dryness of the eye.

Launch Date

2003
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
0.8 mg/mL
20.7 mg 3 times / day steady-state, oral
dose: 20.7 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
PROPYLENE GLYCOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
3.23 mg × h/mL
20.7 mg 3 times / day steady-state, oral
dose: 20.7 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
PROPYLENE GLYCOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
3.79 h
20.7 mg 3 times / day steady-state, oral
dose: 20.7 mg
route of administration: Oral
experiment type: STEADY-STATE
co-administered:
PROPYLENE GLYCOL plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: FEMALE / MALE
food status: UNKNOWN
Doses

Doses

DosePopulationAdverse events​
0.8 g/kg 1 times / day multiple, oral
Dose: 0.8 g/kg, 1 times / day
Route: oral
Route: multiple
Dose: 0.8 g/kg, 1 times / day
Sources:
unhealthy, 13 years
Health Status: unhealthy
Age Group: 13 years
Sex: M
Sources:
Other AEs: Distributive shock, Acidosis metabolic...
Other AEs:
Distributive shock
Acidosis metabolic
Sources:
20.7 g 3 times / day multiple, oral
Dose: 20.7 g, 3 times / day
Route: oral
Route: multiple
Dose: 20.7 g, 3 times / day
Sources:
unhealthy, 18 - 65 years
Health Status: unhealthy
Age Group: 18 - 65 years
Sex: M+F
Sources:
Other AEs: Mental disorder NOS...
Other AEs:
Mental disorder NOS (severe, 1 patient)
Sources:
41.4 g 2 times / day multiple, oral
Dose: 41.4 g, 2 times / day
Route: oral
Route: multiple
Dose: 41.4 g, 2 times / day
Sources:
unhealthy, 18 - 65 years
Health Status: unhealthy
Age Group: 18 - 65 years
Sex: M+F
Sources:
Other AEs: Mental disorder NOS...
Other AEs:
Mental disorder NOS (severe, 2 patients)
Sources:
8.64 g single, rectal
Dose: 8.64 g
Route: rectal
Route: single
Dose: 8.64 g
Sources:
healthy, adult
Health Status: healthy
Age Group: adult
Sources:
173 mg/kg single, rectal
Dose: 173 mg/kg
Route: rectal
Route: single
Dose: 173 mg/kg
Sources:
healthy, children
Health Status: healthy
Age Group: children
Sources:
AEs

AEs

AESignificanceDosePopulation
Acidosis metabolic
0.8 g/kg 1 times / day multiple, oral
Dose: 0.8 g/kg, 1 times / day
Route: oral
Route: multiple
Dose: 0.8 g/kg, 1 times / day
Sources:
unhealthy, 13 years
Health Status: unhealthy
Age Group: 13 years
Sex: M
Sources:
Distributive shock
0.8 g/kg 1 times / day multiple, oral
Dose: 0.8 g/kg, 1 times / day
Route: oral
Route: multiple
Dose: 0.8 g/kg, 1 times / day
Sources:
unhealthy, 13 years
Health Status: unhealthy
Age Group: 13 years
Sex: M
Sources:
Mental disorder NOS severe, 1 patient
20.7 g 3 times / day multiple, oral
Dose: 20.7 g, 3 times / day
Route: oral
Route: multiple
Dose: 20.7 g, 3 times / day
Sources:
unhealthy, 18 - 65 years
Health Status: unhealthy
Age Group: 18 - 65 years
Sex: M+F
Sources:
Mental disorder NOS severe, 2 patients
41.4 g 2 times / day multiple, oral
Dose: 41.4 g, 2 times / day
Route: oral
Route: multiple
Dose: 41.4 g, 2 times / day
Sources:
unhealthy, 18 - 65 years
Health Status: unhealthy
Age Group: 18 - 65 years
Sex: M+F
Sources:
Overview

Overview

CYP3A4CYP2C9CYP2D6hERG

OverviewOther

Other InhibitorOther SubstrateOther Inducer


Drug as perpetrator​

Drug as perpetrator​

TargetModalityActivityMetaboliteClinical evidence
likely
yes (co-administration study)
Comment: Can't find IC50/Ki values;Propylene glycol inhibited the activity of CYP2El as indicated by 84% reduction in the clearance of 3 mg/kg dose of chlorzoxazone
no
Sourcing

Sourcing

Vendor/AggregatorIDURL
PubMed

PubMed

TitleDatePubMed
Modulation of the rheological and mucoadhesive properties of thermosensitive poloxamer-based hydrogels intended for the rectal administration of quinine.
2006-03
Virucidal activity of a new hand disinfectant with reduced ethanol content: comparison with other alcohol-based formulations.
2006-01
Pentane-1,5-diol as a percutaneous absorption enhancer.
2005-12
Are all aciclovir cream formulations bioequivalent?
2005-11-04
The diazo route to diazonamide A: studies on the tyrosine-derived fragment.
2005-10-21
Patch testing with patients' own cosmetics and toiletries--results of the IVDK*, 1998-2002.
2005-10
Bifunctional compounds eliciting anti-inflammatory and anti-cholinesterase activity as potential treatment of nerve and blister chemical agents poisoning.
2005-09-17
Design of low-toxic and temperature-sensitive anionic microemulsions using short propyleneglycol alkyl ethers as cosurfactants.
2005-08-30
Pressurized liquid extraction-capillary electrophoresis-mass spectrometry for the analysis of polar antioxidants in rosemary extracts.
2005-08-19
Synthesis of novel apio carbocyclic nucleoside analogues as selective a(3) adenosine receptor agonists.
2005-06-24
The use of an open-freezing system with self-seeding for cryopreservation of mouse ovarian tissue.
2005-06
[Emergence, state-of-the-art and outlooks of the cryopreservation of blood cells in Russia].
2005-05-27
Two (+)-alpha,4-dimethyl-2-oxocyclohexaneacetic acids: hydrogen bonding in a terpenoid gamma-keto acid and in a diastereomeric lactol.
2005-04
A chemoenzymatic total synthesis of the undecenolide (-)-cladospolide B via a mid-stage ring-closing metathesis and a late-stage photo-rearrangement of the E-isomer.
2005-03-21
Novel approach for classifying chemicals according to skin sensitizing potency by non-radioisotopic modification of the local lymph node assay.
2005-03-04
Developmental potential and ultrastructural injuries of metaphase II (MII) mouse oocytes after slow freezing or vitrification.
2005-03
Identification of the 1,2-propanediol-1-yl radical as an intermediate in adenosylcobalamin-dependent diol dehydratase reaction.
2005-02-15
Design of oligolactone-based scaffolds for bone tissue engineering.
2005
Chiral ligand exchange capillary electrophoresis using borate anion as a central ion.
2004-12
Unprovoked and glyceryl trinitrate-provoked head-up tilt table test is safe in older people: a review of 10 years' experience.
2004-11
Highly stereoselective oxy-Michael additions to alpha,beta-disubstituted nitro olefins: asymmetric synthesis of pseudo-norephedrine derivatives and THP* protected alpha-hydroxy ketones.
2004-10-21
Endothelial nitric oxide synthase and methylenetetrahydrofolate reductase gene polymorphisms are associated with endothelial dysfunction in young, healthy men.
2004-10
Morphometric analysis of mice uteri treated with the preservatives methyl, ethyl, propyl, and butylparaben.
2004-09
Effects of cyclooxygenase inhibition on endothelial function in hypertensive patients treated with angiotensin-converting enzyme inhibitors.
2004-09
Pregnancies and births after oocyte cryopreservation.
2004-09
Metabolites in ventricular cerebrospinal fluid detected by proton magnetic resonance spectroscopic imaging.
2004-09
Impaired endothelial function in young women with premature ovarian failure: normalization with hormone therapy.
2004-08
Sevoflurane promotes endothelium-dependent smooth muscle relaxation in isolated human omental arteries and veins.
2004-08
Simultaneous XRD-DSC measurements of water-2-propanol at sub-zero temperatures.
2004-07
In vitro-in vivo characterization of release modifying agents for parenteral sustained-release ketorolac formulation.
2004-07
Synthesis of optically pure (+)-puraquinonic acid and assignment of absolute configuration to natural (-)-puraquinonic acid. Use of radical cyclization for asymmetric generation of a quaternary center.
2004-06-11
Expression of connexins in human preimplantation embryos in vitro.
2004-06-02
The dominant role of solvent in the sequestering of bile salts by hydrophobic cationic polymeric resins.
2004-05-11
Glycosidase-inhibiting pyrrolidines and pyrrolizidines with a long side chain in Scilla peruviana.
2004-05
Highly stereoselective intermolecular oxy-michael addition reaction to alpha,beta-unsaturated malonate esters.
2004-04-29
Aglacins I-K, three highly methoxylated lignans from Aglaia cordata.
2004-04
Structure-activity relationships of a novel class of endothelin receptor selective antagonists; 6-carboxy-2-isopropylamino-5,7-diarylcyclopenteno[1,2-b]pyridines.
2004-03-22
Fermentative production of chemicals that can be used for polymer synthesis.
2004-03-15
Scintigraphic sign of functional biliary obstruction is pathognomic for sphincter of Oddi dysfunction.
2004-03-12
Close association of endothelial dysfunction with insulin resistance and carotid wall thickening in hypertension.
2004-03
Vitrification of pronuclear-stage mouse embryos on solid surface (SSV) versus in cryotube: comparison of the effect of equilibration time and different sugars in the vitrification solution.
2004-02
Effect of chronic ritonavir administration on pregnant rats and their fetuses.
2004
Determination of the dermal penetration of esterom components using microdialysis sampling.
2003-11
Enantiospecific synthesis of the phospholipase A2 inhibitors (-)-cinatrin C1 and (+)-cinatrin C3.
2003-10-21
Alternative liquid chromatographic method for determination of the methoxyl and 2-hydroxypropoxyl content in cellulose ether derivatives.
2003-09-26
Conversion of 2-deoxy-D-ribose into 2-amino-5-(2-deoxy-beta-D-ribofuranosyl)pyridine, 2'-deoxypseudouridine, and other C-(2'-deoxyribonucleosides).
2003-09-21
Protein content of polyhedral organelles involved in coenzyme B12-dependent degradation of 1,2-propanediol in Salmonella enterica serovar Typhimurium LT2.
2003-09
[Study on the toxicological effect of chloropropanols on rats].
2003-07
Stereoselective oxidation of aliphatic diols and reduction of hydroxy-ketones with galactitol dehydrogenase from Rhodobacter sphaeroides D.
2003
Practical production of (S)-1,2-propanediol and its derivative through baker's yeast-mediated reduction.
2001
Patents

Sample Use Guides

Instill 1 or 2 drops in the affected eye(s) as needed.
Route of Administration: Topical
Substance Class Chemical
Created
by admin
on Mon Mar 31 17:54:45 GMT 2025
Edited
by admin
on Mon Mar 31 17:54:45 GMT 2025
Record UNII
6DC9Q167V3
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
PROPYLENE GLYCOL
EP   FCC   FHFI   HSDB   II   INCI   MART.   MI   USP   USP-RS   VANDF   WHO-DD   WHO-IP  
INCI  
Official Name English
PROPYLENE GLYCOL (SOLVENT)
VANDF  
Preferred Name English
ISOPROPYLENE GLYCOL
Common Name English
PROPYLENE GLYCOL [FCC]
Common Name English
1,2-PROPANEDIOL
Systematic Name English
PROPYLENE GLYCOL [MI]
Common Name English
PROPYLENE GLYCOL [USP MONOGRAPH]
Common Name English
PROPYLENE GLYCOL [VANDF]
Common Name English
KOLLISOLV PG
Brand Name English
GLYCEROL IMPURITY C [EP IMPURITY]
Common Name English
INS-1520
Common Name English
NSC-69860
Code English
PROPYLENE GLYCOL [HSDB]
Common Name English
PROPYLENE GLYCOL [MART.]
Common Name English
(2RS)-PROPANE-1,2-DIOL
Systematic Name English
PROPYLENE GLYCOL [FHFI]
Common Name English
FEMA NO. 2940
Code English
PROPANEDIOL-
Systematic Name English
MONOPROPYLENE GLYCOL
Systematic Name English
PROPYLENE GLYCOL [USP-RS]
Common Name English
PROPYLENE GLYCOL [WHO-IP]
Common Name English
PROPYLENE GLYCOL [II]
Common Name English
E-1520
Common Name English
PROPYLENE GLYCOL (SOLVENT) [VANDF]
Common Name English
(±)-1,2-PROPANEDIOL
Systematic Name English
METHYL GLYCOL
Common Name English
PROPYLENEGLYCOLUM [WHO-IP LATIN]
Common Name English
1,2-PROPYLENE GLYCOL
Systematic Name English
Propylene glycol [WHO-DD]
Common Name English
KILFROST ABC-S
Brand Name English
PROPYLENE GLYCEROL
Systematic Name English
PROPYLENE GLYCOL [EP MONOGRAPH]
Common Name English
PROPYLENE GLYCOL [JAN]
Common Name English
PROPYLENE GLYCOL DL-FORM [MI]
Common Name English
INS NO.1520
Common Name English
Classification Tree Code System Code
CODEX ALIMENTARIUS (GSFA) INS-1520
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
CFR 21 CFR 184.1666
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
CFR 21 CFR 589.1001
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
JECFA EVALUATION INS-1520
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
WHO-VATC QA16QA01
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
DSLD 1156 (Number of products:1)
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
EPA PESTICIDE CODE 68603
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
CFR 21 CFR 349.12
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
CFR 21 CFR 172.850
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
FDA ORPHAN DRUG 98896
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
CFR 21 CFR 582.4666
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
NCI_THESAURUS C82130
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
Code System Code Type Description
DRUG CENTRAL
4024
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
ChEMBL
CHEMBL286398
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
CAS
57-55-6
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
FDA UNII
6DC9Q167V3
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
SMS_ID
100000078520
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PRIMARY
MESH
D019946
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
EVMPD
SUB107763
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PRIMARY
DRUG BANK
DB01839
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PRIMARY
MERCK INDEX
m9238
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY Merck Index
CHEBI
16997
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
MERCK INDEX
m9238
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY Merck Index
WHO INTERNATIONAL PHARMACOPEIA
PROPYLENE GLYCOL
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY Description: A colourless, clear, and viscous liquid; odourless. Miscibility: Miscible with water and ethanol (~750 g/l) TS. Category: Solvent; humectant. Storage: Propylene glycol should be kept in a tightly closed container. Additional information: Propylene glycol is hygroscopic. Boiling range, 185-189 ?C. Identity test: Dissolve 0.1 mL in sufficient water to produce 100 mL, dilute 1 mL to 10 mL, and place 0.5 mL of this solution in a test-tube. Cool in ice, add 5 mL of a cooled mixture of 10 mL of water and 90 mL of sulfuric acid (~1760 g/l) TS, heat on a water-bath at 70 ?C for10 minutes, and cool again. Add 0.2 mL of triketohydrindene/sodium metabisulfite TS; a violet colour slowly appears.
PUBCHEM
1030
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
ECHA (EC/EINECS)
200-338-0
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
EVMPD
SUB12566MIG
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
EPA CompTox
DTXSID0021206
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
HSDB
174
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
RXCUI
34693
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY RxNorm
NCI_THESAURUS
C29388
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
WIKIPEDIA
PROPYLENE GLYCOL
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
NSC
69860
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
RS_ITEM_NUM
1576708
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
DAILYMED
6DC9Q167V3
Created by admin on Mon Mar 31 17:54:45 GMT 2025 , Edited by admin on Mon Mar 31 17:54:45 GMT 2025
PRIMARY
Related Record Type Details
SALT/SOLVATE -> PARENT
PARENT -> CONSTITUENT ALWAYS PRESENT
Propylene Glycol(mg/cigarette) Canadian = 1.7 SD(0.2) Imported = 4.7 SD(0.0)
Related Record Type Details
PARENT -> IMPURITY
CHROMATOGRAPHIC PURITY (HPLC/UV)
EP
IMPURITY -> PARENT
no peak value listed in USP-NF
CHROMATOGRAPHIC PURITY (HPLC/UV)
EP
IMPURITY -> PARENT
NO peak value listed in USP
CHROMATOGRAPHIC PURITY (HPLC/UV)
EP
Related Record Type Details
ACTIVE MOIETY