1,1-Difluoroethane
C2H4F266.05 g/mol Calculated
Also called Ethylidene difluoride and Ethylidene fluoride.
The propellant in a can of compressed air duster. It leaves as a freezing spray, which is why the can gets cold in your hand.
Sources and notes
- The introductionfrom sourceMoleculeFinder curated
- Other namesfrom sourcePubChem / Wikidata
- Formula and weightcomputedPubChem
- 2D drawingcomputedPubChem structure, drawn by RDKit
- 3D modelfrom sourcePubChem 3D conformerLoaded after the page has painted, and on a phone only when you ask for it; the 2D drawing shows until it arrives.
Where you encounter it
1,1-Difluoroethane on our curated lists, and on the product labels we hold.
Personal care
Household
Aerosol cansAdded by the maker
Every product and list we hold
Sources and notes
- Our curated lists and their amountsfrom sourceMoleculeFinder curatedEach amount is an editorial figure from our food and drink lists, not a measurement of any one product.
- The product labels and their strengthsfrom sourceDailyMed (FDA label)Each label lists the molecule as an ingredient, and an active ingredient at the strength shown.
- How it gets therefrom sourceMoleculeFinder curatedEach mark is set by hand on our lists, never inferred; a label's ingredient is added by the maker. A row with no mark data says Not marked.
Explore its structure
Choose a part to light it up.
Fluorine, chlorine, bromine or iodine bonded to carbon. Each pulls electrons toward itself, and each is larger than the hydrogen the carbon would otherwise carry.
From: standard chemistry.
Sources and notes
- The drawingcomputedPubChem structure, drawn by RDKitThe page's one shipped drawing, with the chosen part lit in amber under it.
- The partscomputedFound by ruleEach part is found by a chemical pattern, never picked by hand atom by atom; its words say where they come from.
Properties and sources
Calculated by PubChem
- Molecular formula
- C2H4F2
- Molecular weight
- 66.05 g/mol
- XLogP3octanol/water, log units
- 1.4
- Polar surface areatopological
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 2
- Rotatable bonds
- 0
- Complexity
- 11
Reported Hazard label (GHS), ECHA, HSDB via PubChem
Danger Flammable pictogram (GHS02) and Compressed gas pictogram (GHS04); hazard statements H220, H280
Groups it belongs to
- Category
- Everyday chemistry
- Family
- Organohalogens
- Chemical groups
- Halogenated
- Product lists
- Aerosol cans
- Elements
- Fluorine
- Hazard classes
- Flammable, Compressed gas, GHS Danger
- Size
- Under 100 g/mol
SMILES
CC(F)FPubChem CID 6368 · Wikidata Q161285 · InChIKey NPNPZTNLOVBDOC-UHFFFAOYSA-N · Data refreshed
Questions
- What is 1,1-Difluoroethane?
- The propellant in a can of compressed air duster. It leaves as a freezing spray, which is why the can gets cold in your hand.
- Where is 1,1-Difluoroethane found?
- 1,1-Difluoroethane is in these product groups: aerosol cans. from source
- How toxic is 1,1-Difluoroethane?
- Its GHS hazard label carries the signal word Danger and the hazard pictograms Flammable and Compressed gas. from source
- What kind of molecule is 1,1-Difluoroethane?
- 1,1-Difluoroethane has the formula C2H4F2 and a molecular weight of 66.05 g/mol. MoleculeFinder files it under organohalogens, in the everyday chemistry group. from sourcefrom sourcefrom sourcefrom source
Sources and notes
- Calculated valuescomputedPubChemComputed from the structure, so no laboratory conditions apply; complexity is PubChem's own structural score.
- Hazard labelfrom sourceECHA, HSDB via PubChemThe label combines these classifications.
- ECHAfrom sourceAttributionSource: European Chemicals Agency, echa.europa.eu.
- Data refreshedfrom sourceMoleculeFinder2026-11-09