Chemical substance record

Disulfur dinitride

25474-92-4N₂S₂92.148 g/mol

Organic/Inorganic Small MoleculeChEBI source record

An inorganic heterocyclic compound with formula N2S2 and consisting of alternating sulfur and nitrogen atoms making up a 4-membered ring structure that is virtually square and planar. It is shock-sensitive and decomposes explosively above 30°C. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values

CAS number	25474-92-4	ChEBI ↗
Molecular formula	N₂S₂	ChEBI ↗
Molar mass	92.148 g/mol	ChEBI ↗
Monoisotopic mass	91.95029 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:37756	ChEBI ↗

Cross-source molecular data

PubChem

Molar mass	92.15 g/mol	PubChem ↗
Exact mass	91.95029036 Da	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

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Source preferred name

disulfur dinitride

IUPAC name

1lambda(4),3,2,4-dithiadiazete

InChIKey

HGFWWXXKPBDJAH-UHFFFAOYSA-N

SMILES

N1=S=NS1

InChI

InChI=1S/N2S2/c1-3-2-4-1

Names & synonyms

1lambda(4),3,2,4-dithiadiazete

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

sulfur molecular entityChEBI parent class · 26835 ↗inorganic heterocyclic compoundChEBI parent class · 33596 ↗nitrideChEBI parent class · 50882 ↗

Mass ↔ amount of substance

Calculated from sourced mass

Amount

Input unit

Equivalent amount

0.0108521 mol

Uses 92.148 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions

S

Sulfur · 2 atoms

69.60%

N

Nitrogen · 2 atoms

30.40%

Calculated 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 associations

In Situ, Time-Resolved X-ray Diffraction Study of the Solid-State Polymerization of Disulfur Dinitride to Poly(sulfur nitride). ↗Inorganic chemistry · 1997 Mar 26 · PMID 11669730

Time-resolved X-ray powder diffraction using a large-area CCD-based detector and Rietveld refinement: solid-state polymerization of S2N2 to (SN)x. ↗Journal of synchrotron radiation · 1997 Mar 1 · PMID 16699212

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:37756

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

Additional molecular descriptorsNCBI PubChem · CID 141213 · retrieved 2026-09-27

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.

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