Reference Source

Isobutane [Propane, 2-methyl]

For Isobutane [Propane, 2-methyl], cas no. is 75-28-5; epa rmp tq (lbs) is 10,000; rmp category is flammable; rmp basis for listing is f, recorded from its source on 2026-08-15.

Substance
Isobutane [Propane, 2-methyl] verified
CAS No.
75-28-5 verified
EPA RMP TQ (lbs)
10,000 verified
RMP category
flammable our reading
RMP basis for listing
f verified
Sourceecfr.gov
Verified
Review by
DatasetOSHA PSM vs EPA RMP: chemical threshold quantities side by side

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

Isobutane [Propane, 2-methyl] | 75-28-5 | 10,000 | f

ecfr.gov, retrieved 2026-08-15

Source

Last verified against source: . Due for re-check by . This page as Markdown · OKF bundle · full dataset as JSON.