Ethanol
A primary alcohol that is ethane in which one of the hydrogens is substituted by a hydroxy group. — ChEBI
Quick answers about Ethanol
Identity · formula · massWhat is Ethanol, CAS 64-17-5?
Ethanol is the substance linked to CAS 64-17-5 in ChEBI entry CHEBI:16236. The reported formula is C2H6O. Confirm the structural identifiers when distinguishing salts, hydrates, isomers or isotopically labelled materials.
Source ↗What is the molar mass of Ethanol?
The ChEBI-reported molar mass is 46.069 g/mol for formula C2H6O. Its source-reported monoisotopic mass is 46.04186 Da; that uses a specific isotope composition and is a different quantity.
Source ↗Which PubChem properties are available for Ethanol?
CID 702 is connected to this record by an exact InChIKey match. PubChem reports exact mass 46.041864811 Da. computed XLogP -0.1. Values and source conventions are shown separately in the property tables below.
Source ↗Identity & molecular properties
Source-linked values| CAS number | 64-17-5 | ChEBI ↗ |
| Chemical formula | C2H6O | ChEBI ↗ |
| Molar mass | 46.069 g/mol | ChEBI ↗ |
| Monoisotopic mass | 46.04186 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:16236 | ChEBI ↗ |
PubChem molecular properties
PubChem| Molar mass | 46.07 g/mol | PubChem ↗ |
| Exact mass | 46.041864811 Da | PubChem ↗ |
| Computed XLogP | -0.1 | PubChem ↗ |
| Topological polar surface area (Ų) | 20.2 | PubChem ↗ |
| H-bond donors | 1 | PubChem ↗ |
| H-bond acceptors | 1 | PubChem ↗ |
| Rotatable bonds | 0 | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifierethanolethanolLFQSCWFLJHTTHZ-UHFFFAOYSA-NCCOInChI=1S/C2H6O/c1-2-3/h3H,2H2,1H3Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyRoles recorded in ChEBI
Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.
Safety documents & references
2 indexed referencesFind a product-specific SDS
Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.
Safety classification · Japan
NITE / Japanese governmentEthanol · 25B0007
| Endpoint | Reported classification |
|---|---|
| Flammable liquids | Category 2 |
| Serious eye damage/eye irritation | Category 2B |
| Carcinogenicity | Category 1A |
| Reproductive toxicity | Category 1A |
| Specific target organ toxicity - Single exposure | Category 3 (respiratory tract irritation, narcotic effects) |
| Specific target organ toxicity - Repeated exposure | Category 1 (liver), Category 2 (central nervous system) |
Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.
Read the original NITE classificationMass ↔ amount of substance
Calculated from sourced massUses 46.069 g/mol from ChEBI; basis: the substance and formula represented in this record. No purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCOHCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.