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Chemical substance record

Polysulfur

7704-34-9(S)n.S296.201 g/mol
ElementChEBI source record

Polysulfur is indexed in ChEBI under CHEBI:17909, with the reported formula (S)n.S2. Use the source record and structural identifiers below to confirm the material you need. — ChEBI

Safety references

Safety documents & references

1 indexed references
JP · NITE

Government GHS classification

21A3550 · FY2009

View classification

Find a product-specific SDS

Safety guides and government classification records are not a manufacturer’s SDS. Match supplier, product number, concentration, physical form, region and revision before using a document.

Identity & molecular properties

Source-linked values
CAS number7704-34-9ChEBI ↗
Molecular formula(S)n.S2ChEBI ↗
Molar mass96.201 g/molChEBI ↗
Monoisotopic mass95.91621 DaChEBI ↗
Formal charge0ChEBI ↗
ChEBI identifierCHEBI:17909ChEBI ↗

Cross-source molecular data

PubChem
Molar mass96.2 g/molPubChem ↗
Exact mass95.91621352 DaPubChem ↗

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 identifier
polysulfur
polysulfur
NVSDADJBGGUCLP-UHFFFAOYSA-N
S=S=S
InChI=1S/S3/c1-3-2

Classification & relationships

ChEBI ontology

Roles recorded in ChEBI

agrochemicalantifungal agentSaccharomyces cerevisiae metabolite

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Safety classification · Japan

NITE / Japanese government
Japan · FY2009 source classification
Sulfur · 21A3550
EndpointReported classification
Flammable solidsCategory 2
Specific target organ toxicity - Single exposureCategory 1 (respiratory tract)
Specific target organ toxicity - Repeated exposureCategory 2 (respiratory system, skin)

Selected source-reported endpoints. Other endpoints, rationales and conditions remain in the original classification. Missing or unlisted information does not mean non-hazardous. This is not a global classification or transport decision.

Read the original NITE classification

Mass ↔ amount of substance

Calculated from sourced mass
Equivalent amount
0.0103949 mol

Uses 96.201 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Research & patent references

Selected source associations

Explore literature using this exact identifier.

Sources & record history

Checked 27 Sep 2026
EMBL-EBI ChEBI · CHEBI:17909

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

NCBI PubChem · CID 139340 · 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. Several CAS cross-references occur in this ChEBI entry; this page uses 7704-34-9. Check the original record for identity context.