Ammonium iron(III) sulfate CAS 10138-04-2
| CAS No. | 10138-04-2 |
| Molecular Formula | FeO8S2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ammonium iron(III) sulfate (CAS 10138-04-2) is a high-purity analytical reference standard with the molecular formula FeO8S2H4N and a molecular weight of 266.00 g/mol.
Ammonium iron(III) sulfate (FeO8S2H4N) contains a sulfone group. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Ammonium iron(III) sulfate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | FeO8S2 H4N |
| Molecular Weight | 266.00 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Ammonium Standards
- Iron (III) chloride hexahydrate (CAS 10025-77-1)
- Iron(II) sulfate dihydrate (CAS 10028-21-4)
- Iron(III) Sulfate (CAS 10028-22-5)
- Iron(II) phosphate (CAS 10028-23-6)
- Iron(II) succinate (CAS 10030-90-7)
- Iron(III) bromide (CAS 10031-26-2)
- Ammonium iron(II) sulfate (CAS 10045-89-3)
- Iron(III) pyrophosphate (CAS 10058-44-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com