Reference Source

CYCLOPROPANE

What is the cas number for CYCLOPROPANE?

For CYCLOPROPANE, cas number is 75-19-4; health (blue) is 1; flammability (red) is 4; instability (yellow) is 0, verified against its source on 2026-11-10.

Health | 1 | Can cause significant irritation.

— cameochemicals.noaa.gov, retrieved 2026-09-01

Chemical
CYCLOPROPANE
CAS number
75-19-4
Health (blue)
1 verified
Flammability (red)
4 verified
Instability (yellow)
0 verified
Sourcecameochemicals.noaa.gov
Verified
Review by
DatasetNFPA 704 fire diamond ratings by chemical

Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

Health (blue)

Health | 1 | Can cause significant irritation.

Flammability (red)

Flammability | 4 | Burns readily. Rapidly or completely vaporizes at atmospheric pressure and normal ambient temperature.

Instability (yellow)

Instability | 0 | Normally stable, even under fire conditions.

— all from cameochemicals.noaa.gov, retrieved 2026-09-01

Source

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