Sodium Sulfite

CAS 7757-83-7  ·  Na₂O₃S  ·  MW 126.05 g/mol

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3D model Sodium Sulfite, CAS 7757-83-7, molecular formula Na₂O₃S, molar mass 126.05 g/mol

Model views

  • Sodium Sulfite (CAS 7757-83-7) – ball-and-stick 3D model, MolGod Viewer
    ball-and-stick 3D model
  • Sodium Sulfite (CAS 7757-83-7) – skeletal 3D model, MolGod Viewer
    skeletal 3D model
  • Sodium Sulfite (CAS 7757-83-7) – space-filling 3D model, MolGod Viewer
    space-filling 3D model
  • Sodium Sulfite (CAS 7757-83-7) – 2D structure, MolGod Viewer
    2D structure

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About Sodium Sulfite

Sodium Sulfite is a chemical compound registered under number CAS 7757-83-7, with the molecular formula Na₂O₃S, and a molar mass of 126.05 g/mol.

The molecule contains 6 atoms connected by 3 chemical bonds. The full systematic IUPAC name of this compound is disodium;sulfite. 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, polar surface area PSA = 82.4 Ų, 0 donors and 4 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 interactive 3D model and the viewer images are protected by copyright (© MolGod.org) — terms of use: molgod.org/copyright/.

Physicochemical properties
Molecular formulaNa₂O₃S
Molar mass126.05 g/mol
IUPACdisodium;sulfite
SMILES[O-]S(=O)[O-].[Na+].[Na+]
InChIKeyGEHJYWRUCIMESM-UHFFFAOYSA-L
logP (XLogP3)—
PSA82.4 Ų
HBD / HBA0 / 4
PubChem CIDCID 24437 ↗
GHS safety

Signal word: Danger

GHS05
GHS05
GHS07
GHS07

H302 — Harmful if swallowed

H318 — Causes serious eye damage

Scientific literature

Related literature

20 articles · 9 open access · Sources: PubMed, OpenAlex, Semantic Scholar

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

📈 Publication timeline (number of articles: 20)

1993: number of articles 119932004: number of articles 12009: number of articles 12011: number of articles 12012: number of articles 12013: number of articles 12016: number of articles 120162017: number of articles 12020: number of articles 22022: number of articles 32024: number of articles 52025: number of articles 22025

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
SODIUM SULFITE · 7757-83-7 · Disodium sulfite · Sodium sulfite anhydrous · Sodium sulphite · Sulfurous acid, disodium salt · Natrium sulfurosum · Sulftech · Natriumsulfid · Natriumsulfit · S-WAT · Natrii sulphis · Anhydrous sodium sulfite · Sodium sulfite (Na2SO3) · Exsiccated sodium sulfite
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
ILLUSTRATIVE FRAGMENT ARRANGEMENT — relative positions are not structural data

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.

This substance consists of 3 separate components (for example ions). Each component was computed separately; they are arranged radially around a layout anchor for visualisation only (at least 3.0 Å apart). Their relative positions are not a crystal structure, coordination geometry, ionic contacts or any experimentally determined arrangement.

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/24437
  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)

MG-STL-7757-83-7-ENGRAVED

Sodium Sulfite (CAS 7757-83-7), Na₂O₃S - 3D ball-and-stick molecular model, MolGod STL previewDownload image

MG-STL-7757-83-7-NORMAL · 2,304 △ · 113 KB · SHA-256 177716e53b249fee

Download 3D model

Model
Sodium Sulfite · 7757-83-7
InChIKey
GEHJYWRUCIMESM-UHFFFAOYSA-L
License
CC BY-SA 4.0 International (source rights undetermined — not yet granted)
Attribution
MolGod Scientific — Sodium Sulfite (CAS 7757-83-7)
License & provenance record
Sodium Sulfite (CAS 7757-83-7) →
MolGod molecule record
Sodium Sulfite →
Source data
PubChem CID 24437 ↗
Model information
STL generated by MolGod · MolGod STL Exporter build 48804cd20b0d · generated 2026-10-14
SHA-256 (STL)
177716e53b249fee294f3571ff3ea617ff9fef664419e8e04031f3eec0b3f680
MD5 (STL)
caca9632e6ae32fa0568a7fc49cd4f68
Model identifier
MG-STL-7757-83-7
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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