Iron Oxide BlackDISCONTINUED CAS 12227-89-3
| CAS No. | 12227-89-3 |
| Molecular Formula | Fe2O3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Iron Oxide BlackDISCONTINUED 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.
CATO supplies Iron Oxide BlackDISCONTINUED (CAS 12227-89-3), a certified reference material (molecular formula Fe2O3FeO, MW 231.53 g/mol) for analytical method development and quality control.
Owing to an inorganic composition, Iron Oxide BlackDISCONTINUED is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 231.53 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.
Physical & Chemical Properties
| Molecular Formula | Fe2O3 FeO |
| Molecular Weight | 231.53 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Freely soluble in water |
| Stability | Hygroscopic; reseal immediately after opening |
| CAS Registry Year (est.) | 1960 |
Related Iron 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)
Recommended Standards
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- {1-[2-(3,4-Dimethoxyphenyl)ethyl]-2,5-dioxoimidazolidin-4-yl}acetic acid (CAS 1910797-57-7)
- Tizanidine Guanidine Impurity (CAS 125292-37-7)
- 2-(1-Benzyl-1H-indol-3-yl)-1-methyl-ethylaminehydrochloride (CAS 18394-42-8)
- 1-n,1-n-Diethyl-4-n-(pyridin-2-ylmethyl)benzene-1,4-diamine (CAS 1156060-84-2)
- 1-(2-Chloro-4-fluorobenzyl)piperidine-4-carbohydrazide (CAS 438217-98-2)
- N1-Feruloylspermidine (CAS 70185-60-3)
- Semaglutide impurity 28 (CAS CATO-C4X-222628)
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