Liquid nitrogen

CAS 7727-37-9  ·  N2  ·  MW 28.014 g/mol

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3D model Nitrogen, CAS 7727-37-9, molecular formula N2, molar mass 28.014 g/mol
About Liquid nitrogen

Liquid nitrogen is a chemical compound registered under number CAS 7727-37-9, with the molecular formula N2, and a molar mass of 28.014 g/mol.

The molecule contains 2 atoms connected by 1 chemical bonds. The full systematic IUPAC name of this compound is molecular nitrogen. The interactive 3D model above lets you view the spatial arrangement of the atoms — you can rotate it with the mouse, zoom with the scroll wheel, and switch between skeletal / Ball & Stick / Space Fill visualization modes.

In terms of physicochemical properties, the partition coefficient logP = 0.1 (positive value, a lipophilic compound), polar surface area PSA = 47.6 Ų, 0 donors and 2 hydrogen bond acceptors. These parameters are key when assessing bioavailability and interaction with biomolecules.

Chemical data for this compound comes from PubChem (NIH NLM NCBI), one of the world's largest chemical databases. All information is updated automatically and enriched with GHS hazard statement translations compliant with the CLP Regulation (EC 1272/2008). The widget above may be used for educational, research and commercial purposes.

Physicochemical properties
Molecular formulaN2
Molar mass28.014 g/mol
IUPACmolecular nitrogen
SMILESN#N
InChIKeyIJGRMHOSHXDMSA-UHFFFAOYSA-N
logP (XLogP3)0.1
PSA47.6 Ų
HBD / HBA0 / 2
PubChem CIDCID 947 ↗
GHS safety

Signal word: Danger

GHS04
GHS04

H280 — Contains gas under pressure; may explode if heated

H304 — May be fatal if swallowed and enters airways

H401 — Toxic to aquatic life

Scientific literature

Related literature

20 articles · 20 open access · Sources: PubMed, OpenAlex, Semantic Scholar

Filters:Export:📄 BibTeX📑 RIS📋 EndNote🔧 CSL-JSON

📈 Publication timeline (number of articles: 20)

2003: number of articles 120032018: number of articles 12019: number of articles 12020: number of articles 22021: number of articles 220212022: number of articles 12024: number of articles 12026: number of articles 112026

Bar height = number of articles in a given year. Hover over a bar to see details.

Data from PubMed (NIH NLM), OpenAlex (CC0), Semantic Scholar (AI2). AI Summary generated by Semantic Scholar TLDR. Articles marked with require paid access.

Synonyms
Nitrogen · Nitrogen gas · Molecular nitrogen · Dinitrogen · 7727-37-9 · MOL Nitrogen · Nitrogeno · Nitrogen (n2) · INS NO.941 · INS-941 · E-941 · N762921K75 · CHEBI:17997 · Diazyne · Nitrogen Nf
Data sources
Related molecules
📜 License & provenancePREDICTED MODEL · NOT VERIFIEDMolGod_License_1
PREDICTED MODEL — NOT VERIFIED
computed by MolGod Scientific · experimental feature (beta) · may contain errors

No source 3-D conformer was available to MolGod for this substance. MolGod Scientific computed this geometry from the structural formula with RDKit 2026.03.6 (ETKDGv3 conformer generation, MMFF94 force-field optimisation; lowest-energy converged conformer of a fixed-seed set). It is not a measured structure, it does not come from PubChem, and it has not been compared with experimental data. It shows one possible conformation.

Methods and references
  1. RDKit: Open-source cheminformatics, version 2026.03.6. Zenodo. doi:10.5281/zenodo.22140358 (all versions: doi:10.5281/zenodo.591637)
  2. Riniker S, Landrum GA. Better Informed Distance Geometry: Using What We Know To Improve Conformation Generation. J. Chem. Inf. Model. 2015, 55, 2562-2574. doi:10.1021/acs.jcim.5b00654
  3. Wang S, Witek J, Landrum GA, Riniker S. Improving Conformer Generation for Small Rings and Macrocycles Based on Distance Geometry and Experimental Torsional-Angle Preferences. J. Chem. Inf. Model. 2020, 60, 2044-2058. doi:10.1021/acs.jcim.0c00025
  4. Halgren TA. Merck molecular force field. I. Basis, form, scope, parameterization, and performance of MMFF94. J. Comput. Chem. 1996, 17, 490-519. doi:10.1002/(SICI)1096-987X(199604)17:5/6<490::AID-JCC1>3.0.CO;2-P
  5. Tosco P, Stiefl N, Landrum G. Bringing the MMFF force field to the RDKit: implementation and validation. J. Cheminform. 2014, 6, 37. doi:10.1186/s13321-014-0037-3
  6. Heller SR, McNaught A, Pletnev I, Stein S, Tchekhovskoi D. InChI, the IUPAC International Chemical Identifier. J. Cheminform. 2015, 7, 23. doi:10.1186/s13321-015-0068-4
  7. Kim S, Chen J, Cheng T, et al. PubChem 2025 update. Nucleic Acids Res. 2025, 53, D1516-D1525. doi:10.1093/nar/gkae1059 Compound record: https://pubchem.ncbi.nlm.nih.gov/compound/947
  8. Bolton EE, Kim S, Bryant SH. PubChem3D: Conformer generation. J. Cheminform. 2011, 3, 4. doi:10.1186/1758-2946-3-4 (cited for contrast: no source 3-D conformer was available to MolGod for this record)
liquid nitrogen (CAS 7727-37-9), N2 - 3D ball-and-stick molecular model, engraved element symbols (N), MolGod STL previewDownload image

MG-STL-7727-37-9-ENGRAVED · 28,518 △ · 1 MB · SHA-256 46609c89e3b9baee

Download 3D model · ENGRAVED · N

liquid nitrogen (CAS 7727-37-9), N2 - 3D ball-and-stick molecular model, MolGod STL previewDownload image

MG-STL-7727-37-9-NORMAL · 928 △ · 45 KB · SHA-256 201a42ce72eeda23

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Model
liquid nitrogen · 7727-37-9
InChIKey
IJGRMHOSHXDMSA-UHFFFAOYSA-N
License
CC BY-SA 4.0 International (source rights undetermined — not yet granted)
Attribution
MolGod Scientific — liquid nitrogen (CAS 7727-37-9)
License & provenance record
liquid nitrogen (CAS 7727-37-9) →
MolGod molecule record
liquid nitrogen →
Source data
PubChem CID 947 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
201a42ce72eeda23f9c2119a3bba9f37a311e3ba41268ca8e758635af1796e16
MD5 (STL)
7463f6429277d7e2815496d483cc9be4
Model identifier
MG-STL-7727-37-9
Transformation
MolGod Scientific ball-and-stick mesh
Changes
PREDICTED geometry computed by MolGod Scientific (RDKit), NOT verified; rendered as a triangulated mesh.
Wikimedia Commons
not published yet

This license applies to the MolGod-created STL mesh, not automatically to third-party source material.

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