Isopropyl butyrate
For Isopropyl butyrate, carrier is USPS; restriction type is restricted; scope is domestic mail: surface only (air prohibited); conditions is Hazard class 3, UN2405, packing group III; domestic mail air: Prohibited; domestic mail surface: 3A, recorded from its source on 2026-08-10.
- Item category
- Isopropyl butyrate verified
- Carrier
- USPS our reading
- Restriction type
- restricted our reading
- Scope
- domestic mail: surface only (air prohibited) our reading
- Conditions
- Hazard class 3, UN2405, packing group III; domestic mail air: Prohibited; domestic mail surface: 3A verified
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Isopropyl butyrate 3 UN2405 III Prohibited 3A
— pe.usps.com, retrieved 2026-08-10
Source
- pe.usps.comhttps://pe.usps.com/cpim/ftp/pubs/pub52/pub52.pdf