1-Propoxypropan-2-ol

Glycol ether solvents
CAS 1569-01-3
IUPAC: 1-(propan-2-yloxy)propan-2-ol

1-Propoxypropan-2-ol (also known as propylene glycol monopropyl ether, PGPE) is a glycol ether solvent used as a co-solvent in cleaning formulations. It aids in wetting surfaces and dissolving grease. Classified as Flam. Liq. 3 (H226), Eye Irrit. 2 (H319), and STOT SE 3 (H336 — may cause drowsiness or dizziness) at pure substance level. Readily biodegradable (64% in 20 days by BOD). Not classified as an aquatic toxicant. Commonly found in automotive degreasers and all-purpose cleaners at 1–5%.

Health & environment profile

VOC: yes
Prop 65 listed: no
Asthmagen: no
EPA Safer Choice: no
Aquatic toxicity: no
Biodegradable: yes
Bioaccumulative: no
Persistent: no
Ozone depleting: no
Microplastic: no
PFAS: no
Env. score: 5/5

Purpose: Glycol ether co-solvent — aids wetting, penetration, and grease dissolution in cleaning formulations

1 product contain this

Meguiar's Super Degreaser
engine-degreaser
Prop 65

Health summaries are editorial — we synthesize from SDSs, peer-reviewed sources, and regulatory listings. Not medical advice.