Phosphorus sesquisulfide CAS 1314-85-8
| CAS No. | 1314-85-8 |
| Molecular Formula | P4S3 |
| Molecular Weight | 220.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 220.09 g/mol gives Phosphorus sesquisulfide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Phosphorus sesquisulfide (CAS 1314-85-8), molecular formula P4S3 and molecular weight 220.09 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to sulfur-containing functionality, organophosphorus functionality, Phosphorus sesquisulfide is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 220.09 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Phosphorus sesquisulfide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | P4S3 |
| Molecular Weight | 220.09 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 3 |
Related Phosphorus Standards
- Phosphorus Pentasulfide (CAS 1314-80-3)
- Phosphorus Pentachloride (CAS 10026-13-8)
- Phosphorus pentoxide (CAS 1314-56-3)
- Phosphorus Trichloride (CAS 7719-12-2)
- Phosphorus (CAS 7723-14-0)
- Phosphorus triiodide (CAS 13455-01-1)
- 39394-84-8 Phosphorus pentoxide methanesulfonic acid methanesulfonic acid compound with phosphenic anhydride (1:1) (CAS 39394-84-8)
- Phosphorus tetraiodide (CAS 13455-00-0)
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