Propylene Glycol

CAS Number57-55-6
Molecular FormulaC3H8O2
Molecular Weight76.09
InChI KeyDNIAPMSPPWPWGF-UHFFFAOYSA-N
LogP-0.9
Synonyms
  • propylene glycol
  • 1,2-propanediol
  • propane-1,2-diol
  • 57-55-6
  • 1,2-Propylene glycol
  • 1,2-dihydroxypropane
  • 2-Hydroxypropanol
  • Isopropylene glycol
  • Methylethyl glycol
  • Methylethylene glycol
  • Dowfrost
  • Monopropylene glycol
  • Sirlene
  • Trimethyl glycol
  • alpha-Propyleneglycol
  • Propylene Glycol USP
  • Solar Winter BAN
  • Solargard P
  • dl-Propylene glycol
  • Methyl glycol
  • DL-1,2-Propanediol
  • Ucar 35
  • Sentry Propylene Glycol
  • 1,2-Propylenglykol
  • (RS)-1,2-Propanediol
  • FEMA No. 2940
  • (+-)-Propylene glycol
  • PG 12
  • alpha-Propylene glycol
  • (+-)-1,2-Propanediol
  • Kilfrost ABC-S
  • Kollisolv pg
  • Propyleneglycolum
  • 1,2-(RS)-Propanediol
  • Ins no.1520
  • Propylene glycol (solvent)
  • 1,2 Propanediol
  • NSC-69860
  • Ins-1520
  • DTXSID0021206
  • CHEBI:16997
  • 6DC9Q167V3
  • DTXCID901206
  • E-1520
  • (2RS)-PROPANE-1,2-DIOL
  • NSC69860
  • Propan-1,2-Diol
  • Systane Balance
  • Baby Wipes
  • Hot Sweat Cream
  • Glycol, Propylene
  • Systane Pro PF
  • EGHMTW hair oil
  • Systane COMPLETE
  • Methyl Ethyl Glycol
  • MSM (MoSaengMo)
  • Propylene glycol dl-
  • DEROFEN MIEL
  • KETO-TREAT
  • RefChem:6677
  • Systane COMPLETE PF
  • GlyTouCan:G58390SD
  • Walgreen Sterile Lubricant
  • GENERAL OB LUBRICANT
  • propylene glycol cefatrizine
  • Monohydrate, Propylene Glycol
  • Walgreens Lubricant Eye Drops
  • Eyelash and Eyebrow Lengthener
  • CVS Lubricant Eye Drops 15mL
  • Polypeptidemulti-Effectseye Cream
  • G58390SD
  • Equate Support Moisture Lubricant Eye
  • Walgreens Complete Lubricant Eye Drops
  • HEB Lubricant Eye Drops Dry Eye Therapy
  • Non Spermicidal Sterile Lubricating Jelly
  • Equate Complete Relief Lubricant Eye Drops
  • Joypretty Polypeptidemulti-Effectseye Cream
  • Leader Restorative Formula Lubricant Eye Drops
  • JoyPrettyin VITAMIN C BRIGHTENING EYE SERUM
  • Leader Lubricant Eye Drops Fast-Acting Hydration
  • Equate Lubricant Eye Drops Restorative Performance
  • Target Lubricant Eye Drops Restorative Performance
  • Rite Aid Lubricant Eye Drops Restorative Performance
  • Walgreens Lubricant Eye Drops Restorative Performance
  • Quality Choice Lubricant Eye Drops Restorative Performance
  • Isopropanol and Compound double-stranded quaternary ammonium salts
  • 200-338-0
  • 613-293-0
  • 2,3-Propanediol
  • Caswell No. 713
  • 1,2-Propylenglykol [German]
  • CCRIS 5929
  • HSDB 174
  • .alpha.-Propylene glycol
  • AI3-01898
  • 1,2-propandiol
  • (+/-)-1,2-propanediol
  • NSC 69860
  • SDM No. 27
  • 1,2-propane-diol
  • EPA Pesticide Chemical Code 068603
  • HOCH2CH(OH)Me
  • MeCH(OH)CH2OH
  • S-(+)-Propylene glycol
  • 1000PG
  • CH3CH(OH)CH2OH
  • HOCH2CH(OH)CH3
  • MFCD00064272
  • 123120-98-9
  • propylenglycol
  • 1,2-Propanediol (8CI,9CI)
  • ( inverted exclamation markA)-1,2-Propanediol
  • C3H8O2
  • Poly(propylene glycol) average Mn 400
  • NCGC00090739-02
  • Poly(propylene glycol) average Mn 2000
  • Poly(propylene glycol) average Mn 4000
  • Prolugen
  • propylene-glycol
  • Ilexan P
  • General lube
  • 1,2-(RS)-Propanediol; 1,2-Dihydroxypropane; 1,2-Propylene glycol
  • CAS-57-55-6
  • 1,2-propane diol
  • All purpose lubricant
  • ()-1,2-propanediol
  • (S)-(+)-Propylene glycerol
  • EINECS 200-338-0
  • BRN 1340498
  • Propylene glycol [USP:JAN]
  • propylene gycol
  • UNII-6DC9Q167V3
  • propylene glycole
  • propylene glycerol
  • 1-2-propanediol
  • 1.2-propanediol
  • Propylene glycol; (RS)-propane-1,2-diol; Glycerol Imp. C (EP); GR 43314X; Glycerol Impurity C
  • 1,2 -propanediol
  • 1,2-propyleneglycol
  • Propylene Glycol (Propane-1,2-diol)
  • Propylene glycol CRS
  • LS-1391
  • PROPANEDIOL-
  • 1,2-Propanediol-d?
  • racemic propylene glycol
  • Propylene glycol dl-form
  • racemic 1,2-propanediol
  • DSSTox_CID_1206
  • bmse000302
  • Epitope ID:161748
  • EC 200-338-0
  • SCHEMBL3535
  • SCHEMBL3930
  • 1,2-Propanediol 100 microg/mL in Acetonitrile
  • DSSTox_RID_78594
  • Propylene glycol, FCC, FG
  • DSSTox_GSID_27863
  • SCHEMBL22063
  • SCHEMBL37444
  • SCHEMBL39420
  • 3-01-00-02142 (Beilstein Handbook Reference)
  • MLS001055394
  • PROPYLENE GLYCOL [II]
  • PROPYLENE GLYCOL [MI]
  • SCHEMBL246209
  • SCHEMBL567822
  • SCHEMBL959052
  • WLN: QY1&1Q
  • PROPYLENE GLYCOL [FCC]
  • PROPYLENE GLYCOL [JAN]
  • CHEMBL286398
  • orb1907325
  • Propylene glycol (JP18/USP)
  • SCHEMBL1311393
  • SCHEMBL2468730
  • SCHEMBL2591762
  • SCHEMBL7593420
  • SCHEMBL7859771
  • 1,2-Propanediol, ACS reagent
  • PROPYLENE GLYCOL [FHFI]
  • PROPYLENE GLYCOL [HSDB]
  • PROPYLENE GLYCOL [VANDF]
  • SCHEMBL15329198
  • SCHEMBL18788393
  • (.+/-.)-1,2-Propanediol
  • 1,2-PDO
  • PROPYLENE GLYCOL [MART.]
  • PROPYLENE GLYCOL [USP-RS]
  • PROPYLENE GLYCOL [WHO-DD]
  • PROPYLENE GLYCOL [WHO-IP]
  • HMS3039O11
  • HMS5085C14
  • 1,2-Propanediol, LR, >=99%
  • BB_SC-07047
  • HY-Y0921
  • NSC35747
  • NSC35748
  • NSC35749
  • Tox21_111003
  • Tox21_201812
  • Tox21_300006
  • Tox21_301441
  • 1,2-Propanediol, USP, 99.5%
  • BBL011472
  • EBC-26033
  • MSK000649
  • STL146584
  • 1,2-Propanediol, analytical standard
  • 1,2-Propanediol, puriss., 99.5%
  • AKOS000121049
  • AKOS016355793
  • Poly(propylene glycol) - M.W=4000
  • PROPYLENE GLYCOL DL-FORM [MI]
  • DB01839
  • FP35394
  • MSK000649-100A
  • PROPYLENE GLYCOL [EP MONOGRAPH]
  • SB44656
  • SB44657
  • PROPYLENE GLYCOL [USP MONOGRAPH]
  • PROPYLENEGLYCOLUM [WHO-IP LATIN]
  • MSK000649-1000A
  • NCGC00090739-01
  • NCGC00090739-03
  • NCGC00090739-04
  • NCGC00254159-01
  • NCGC00255183-01
  • NCGC00259361-01
  • 1,2-Propanediol, ReagentPlus(R), 99%
  • BP-21014
  • Corum 5117 COMPONENT Propylene Glycol
  • DA-66939
  • E490
  • FP177015
  • GLYCEROL IMPURITY C [EP IMPURITY]
  • SMR000677948
  • CAS-25322-69-4
  • DB-013280
  • PROPYLENE GLYCOL (SOLVENT) [VANDF]
  • 1,2-Propanediol, ACS reagent, >=99.5%
  • 1,2-Propanediol, ReagentPlus(R), >=99%
  • CS-0015917
  • E1520
  • NS00009085
  • P0485
  • S6258
  • EN300-21726
  • 1,2-Propanediol, analytical reference material
  • 1,2-Propanediol, tested according to Ph.Eur.
  • C00583
  • D00078
  • 1,2-Propanediol(Discontinued,See C4X-25771)
  • 1,2-Propanediol, p.a., ACS reagent, 99.5%
  • 1,2-Propanediol, SAJ first grade, >=99.0%
  • 1,2-Propanediol, SAJ special grade, >=99.0%
  • 1,2-Propanediol, Vetec(TM) reagent grade, 98%
  • F492646
  • Propylene Glycol, meets USP testing specifications
  • Q161495
  • 1,2-Propanediol Solution in Acetonitrile, 1000ug/mL
  • 1,2-Propanediol Solution in Acetonitrile, 100ug/mL
  • BRD-A19232309-001-08-6
  • F1908-0071
  • Z106938868
  • 1,2-Propanediol, puriss. p.a., ACS reagent, >=99.5% (GC)
  • Propylene glycol, British Pharmacopoeia (BP) Reference Standard
  • Propylene glycol, European Pharmacopoeia (EP) Reference Standard
  • Propylene glycol, United States Pharmacopeia (USP) Reference Standard
  • (R)-(-)-1,2-Propyleneglycol; (R)-(-)-Propylene glycerol; (R)-(-)-Propylene glycol
  • 1,2-Propanediol, meets analytical specification of Ph. Eur., BP, USP, >=99.5%
  • Propylene glycol, Pharmaceutical Secondary Standard; Certified Reference Material
  • 63625-56-9

Applications:

Uv-Vis Spectrum of Propylene glycol

February 5, 2026
Access the UV-Vis Spectrum SIELC Library

If you are looking for optimized HPLC method to analyze Propylene Glycol check our HPLC Applications library

For optimal results in HPLC analysis, it is recommended to measure absorbance at a wavelength that matches the absorption maximum of the compound(s) being analyzed. The UV spectrum shown can assist in selecting an appropriate wavelength for your analysis. Please note that certain mobile phases and buffers may block wavelengths below 230 nm, rendering absorbance measurement at these wavelengths ineffective. If detection below 230 nm is required, it is recommended to use acetonitrile and water as low UV-transparent mobile phases, with phosphoric acid and its salts, sulfuric acid, and TFA as buffers.
For some compounds, the UV-Vis Spectrum is affected by the pH of the mobile phase. The spectra presented here are measured with an acidic mobile phase that has a pH of 3 or lower.

 

 

 

 

 

 

 

 

 

Application Analytes:
Propylene Glycol
SIELC Technologies usually develops more than one method for each compound. Therefore, this particular method may not be the best available method from our portfolio for your specific application. Before you decide to implement this method in your research, please send us an email to research@sielc.com so we can ensure you get optimal results for your compound/s of interest.