C3H8O2
76.09 g/mol
Food AdditiveDanger
Propylene glycol
CAS57-55-6EC200-338-0
Category
Food Additive
Compound Class
Alcohol
Primary Use
Humectant and solvent in food
Propylene glycol is a synthetic liquid substance that absorbs water and is classified by the FDA as generally recognized as safe for use in food. It is clear, colorless, slightly syrupy, and practically odorless and tasteless, commonly used to maintain moisture in food products.
Humectant and solvent in foodAntifreeze and deicing solutionsArtificial smoke and fog for training and theatrical productions
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Hydroxypropyl acrylate
CAS25584-83-2
Comonomer for adhesives and coatings
ReferenceSame Category
Cholesterol
CAS57-88-5
emulsifying agent in pharmaceuticals and cosmetics
ReferenceSame Category
Calcium diascorbate
CAS5743-27-1
antioxidant and color fixative
ReferenceSame Category
Calcium ascorbate
CAS5743-28-2
food additive antioxidant supplement
ReferenceSame Category
Calcium butyrate
CAS5743-36-2
feed additive and preservative
Referencestereoisomer of
(²H₆)Propane-1,2-(²H₂)diol
CAS80156-55-4
research compound
Referencestereoisomer of
(R)-propylene glycol
CAS4254-14-2
research compound
Referencestereoisomer of
(S)-propylene glycol
CAS4254-15-3
pharmaceutical intermediate
Safety Reference
Danger
H336May cause drowsiness or dizziness
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for Propylene glycol (CAS 57-55-6) is 2905.32.
HS code (international, 6-digit)
2905.32
EU CN code (8-digit)
2905 32 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
propane-1,2-diol
InChIKey
DNIAPMSPPWPWGF-UHFFFAOYSA-N
SMILES
CC(CO)O
Synonyms (126)
- 1000PG
- E-1520
- E490
- 1,2-Propanediol, USP
- 1,2-Propanediol, meets analytical specification of Ph. Eur., BP, USP
- Propylene Glycol USP
- Propylene Glycol, meets USP testing specifications
- Propylene glycol (JP18/USP)
- Propylene glycol, British Pharmacopoeia (BP)
- Propylene glycol, European Pharmacopoeia (EP)
- Propylene glycol, United States Pharmacopeia (USP)
- Propylene glycol; (RS)-propane-1,2-diol; Glycerol Imp. C (EP); GR 43314X; Glycerol Impurity C
- (2RS)-PROPANE-1,2-DIOL
- (RS)-1,2-Propanediol
- (S)-(+)-Propylene glycerol
- 1,2-(RS)-Propanediol
- 1,2-PDO
- 1,2-Propanediol (8CI,9CI)
- 1,2-Propanediol, p.a.
- 1,2-Propanediol, puriss.
- 1,2-Propanediol-d
- 1,2-Propylene glycol
- 1,2-Propylenglykol
- 1,2-Propylenglykol [German]
- 1,2-dihydroxypropane
- 1,2-propandiol
- 1,2-propanediol
- 2,3-Propanediol
- 2-Hydroxypropanol
- All purpose lubricant
- Baby Wipes
- CAS-25322-69-4
- CVS Lubricant Eye Drops 15mL
- Caswell No. 713
- DEROFEN MIEL
- DL-1,2-Propanediol
- Dowfrost
- EGHMTW hair oil
- FEMA No. 2940
- GENERAL OB LUBRICANT
- GLYCEROL IMPURITY C
- General lube
- Glycol, Propylene
- HOCH2CH(OH)Me
- Hot Sweat Cream
- Ilexan P
- Ins no.1520
- Isopropylene glycol
- KETO-TREAT
- Kilfrost ABC-S
- Kollisolv pg
- MSM (MoSaengMo)
- MeCH(OH)CH2OH
- Methyl glycol
- Methylethyl glycol
- Methylethylene glycol
- Monohydrate, Propylene Glycol
- Monopropylene glycol
- PG 12
- PROPANEDIOL-
- PROPYLENE GLYCOL [MART.]
- Polypropylene glycol 1000
- Prolugen
- Propan-1,2-Diol
- Propylene glycol (solvent)
- Propylene glycol CRS
- Propylene glycol dl-
- Propylene glycol dl-form
- Propyleneglycol manufacturer
- Propyleneglycolum
- Propylenglycolum
- S-(+)-Propylene glycol
- SDM No. 27
- Sentry Propylene Glycol
- Sirlene
- Solar Winter BAN
- Solargard P
- Systane Balance
- Systane COMPLETE
- Systane COMPLETE PF
- Systane Pro PF
- Trimethyl glycol
- Ucar 35
- Walgreen Sterile Lubricant
- Walgreens Lubricant Eye Drops
- alpha-Propyleneglycol
- dl-Propylene glycol
- propane-1,2-diol
- propylene glycerol
- propylene glycol
- propylene glycol cefatrizine
- propylene glycole
- propylene gycol
- propylenglycol
- racemic 1,2-propanediol
- racemic propylene glycol
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