Reference Source

CYCLOPROPANE

For CYCLOPROPANE, cas number is 75-19-4; health (blue) is 1; flammability (red) is 4; instability (yellow) is 0; what the rating means is Health | 1 | Can cause significant irritation. | Flammability | 4 | Burns readily. Rapidly or completely vaporizes at atmospheric pressure and normal ambient temperature. | Instability | 0 | Normally stable, even under fire conditions. | Special | | |, verified against its source on 2026-08-06.

Chemical
CYCLOPROPANE verified
CAS number
75-19-4 verified
Health (blue)
1 verified
Flammability (red)
4 verified
Instability (yellow)
0 verified
What the rating means
Health | 1 | Can cause significant irritation. | Flammability | 4 | Burns readily. Rapidly or completely vaporizes at atmospheric pressure and normal ambient temperature. | Instability | 0 | Normally stable, even under fire conditions. | Special | | | verified
Sourcecameochemicals.noaa.gov
Verified2026-08-06
Review by2028-08-05
DatasetNFPA 704 fire diamond ratings by chemical

What the source says

Health | 1 | Can cause significant irritation. | Flammability | 4 | Burns readily. Rapidly or completely vaporizes at atmospheric pressure and normal ambient temperature. | Instability | 0 | Normally stable, even under fire conditions. | Special | | |

cameochemicals.noaa.gov, retrieved 2026-08-06

Source

Last verified against source: 2026-08-06. Due for re-check by 2028-08-05. This page as Markdown · OKF bundle · full dataset as JSON.