About helium
helium (PubChem CID 23987) has the molecular formula He
and a molecular weight of 4.00 g/mol. Its IUPAC name is helium.
Molecular Properties
| Compound Name | helium |
|---|
| PubChem CID | 23987 |
|---|
| Molecular Formula | He |
|---|
| Molecular Weight | 4.00 g/mol |
|---|
| Exact Mass | 4.00 |
|---|
| IUPAC Name | helium |
|---|
| SMILES | [He] |
|---|
| InChI | InChI=1S/He |
|---|
| InChIKey | SWQJXJOGLNCZEY-UHFFFAOYSA-N |
|---|
| XLogP | 0.00 |
|---|
| TPSA | 0.00 Ų |
|---|
| H-Bond Donors | |
|---|
| H-Bond Acceptors | |
|---|
| Rotatable Bonds | |
|---|
| Heavy Atoms | 1 |
|---|
| Complexity | — |
|---|
Lipinski Rule of Five
Passes Rule of Five
| Rule | Value |
|---|
| MW ≤ 500 | 4.00 |
| LogP ≤ 5 | 0.00 |
| H-Bond Donors ≤ 5 | 0 |
| H-Bond Acceptors ≤ 10 | 0 |
Analyze helium with MolForge
Explore ADMET properties, 3D molecular structure, drug-likeness score, and discover similar compounds using our AI-powered platform.
Launch Full Analysis
Frequently Asked Questions
What is the IUPAC name of helium?
The IUPAC name of helium (CID 23987) is helium.
What is the SMILES notation for helium?
The canonical SMILES for helium is [He].
What is the InChIKey of helium?
The InChIKey is SWQJXJOGLNCZEY-UHFFFAOYSA-N. The full InChI is InChI=1S/He.
What are the key properties of helium?
helium has a molecular weight of 4.00 g/mol, XLogP of 0.00, 0 rotatable bonds, 0 hydrogen bond donors, and 0 hydrogen bond acceptors.
Where does this data come from?
All data for helium is sourced from PubChem (CID 23987), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).