Iron(3+) sulfide
A member of the class of iron(3+) sulfides that has formula Fe2S3. A black powder, it decomposes at room temperature to give iron(2+) chloride, hydrogen sulfide, and sulfur. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 12063-27-3 | ChEBI ↗ |
| Molecular formula | 2Fe.3S | ChEBI ↗ |
| Molar mass | 207.891 g/mol | ChEBI ↗ |
| Monoisotopic mass | 207.78609 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:75899 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 207.9 g/mol | PubChem ↗ |
| Exact mass | 207.786085 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
Copy any identifieriron(3+) sulfideiron(3+) sulfideKAEAMHPPLLJBKF-UHFFFAOYSA-N[Fe+3].[Fe+3].[S-2].[S-2].[S-2]InChI=1S/2Fe.3S/q2*+3;3*-2Classification & relationships
ChEBI ontologyMass ↔ amount of substance
Calculated from sourced massUses 207.891 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
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.