Erbium(III) selenate octahydrate CAS 26299-44-5
| CAS No. | 26299-44-5 |
| Molecular Formula | 2*Er |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Erbium(III) selenate octahydrate.
Erbium(III) selenate octahydrate (CAS 26299-44-5) is a high-purity analytical reference standard with the molecular formula ErH2O4SeH2O and a molecular weight of 330.26 g/mol.
Erbium(III) selenate octahydrate (ErH2O4SeH2O) contains an inorganic composition. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | 2*Er 3*H2O4Se 8*H2O |
| Molecular Weight | 330.26 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.) | 1964 |
Related Erbium Standards
- Erbium(III) chloride hexahydrate (CAS 10025-75-9)
- Erbium(III) nitrate pentahydrate (CAS 10031-51-3)
- Erbium sulfate hydrate, 99.90% (CAS 10031-52-4)
- Erbium(III) chloride (CAS 10138-41-7)
- Erbium(III) oxide (CAS 12061-16-4)
- Erbium trinitrate hexahydrate (CAS 13476-05-6)
- Erbium(III) sulfate (CAS 13478-49-4)
- Erbium(III) bromide (CAS 13536-73-7)
Recommended Standards
- 8-Methyl-4-(pyridine-4-carbonyl)-1-oxa-4-azaspiro[4.5]decane-3-carboxylic acid (CAS 1326808-59-6)
- 3,4-Dihydro-1h-2-benzopyran-6-ylmethanamine (CAS 933752-20-6)
- 4-[cyclohexyl(methyl)amino]benzoic acid (CAS 243662-77-3)
- (E)-Methyl 3-(N'-hydroxycarbamimidoyl)benzoate (CAS 1141475-82-2)
- 2-(Chloromethyl)-3-(difluoromethyl)-4-methylpyridine-6-carboxaldehyde (CAS 1361884-63-0)
- Pentacosan-13-one (CAS 2123-19-5)
- 1H-indole-1-acetic acid, 2-iodo-, 1,1-dimethylethyl ester (CAS 206196-82-9)
- 1-Cyclopropyl-N2-ethyl-N2-phenylethane-1,2-diamine (CAS 1343166-12-0)
- D-ribo Phytosphingosine 1-Phosphate (CAS 38597-28-3)
- Semaglutide impurity 23 (CAS CATO-C4X-222623)
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