Erbium(III) sulfate CAS 13478-49-4
| CAS No. | 13478-49-4 |
| Molecular Formula | Er2O12S3 |
| Molecular Weight | 622.71 g/mol |
| 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) sulfate.
Erbium(III) sulfate (CAS 13478-49-4), molecular formula Er2O12S3 and molecular weight 622.71 g/mol, is a CATO reference standard with documented purity and traceability.
Erbium(III) sulfate (Er2O12S3) contains a sulfone group. 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 | Er2O12S3 |
| Molecular Weight | 622.71 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 |
| Sulfur Atoms | 3 |
Related Erbium Standards
- Erbium(III) iodide (CAS 13813-42-8)
- Erbium carbonate (CAS 6067-35-2)
- Erbium(III) hexafluoroacetylacetonate (CAS 70332-27-3)
- Erbium(III) bromide (CAS 13536-73-7)
- Erbium(III) oxide (CAS 12061-16-4)
- Erbium(III) i-propoxide (CAS 14814-07-4)
- Erbium(III) chloride (CAS 10138-41-7)
- Erbium fluoride, 99% 5GR (CAS 13760-83-3)
Recommended Standards
- 10591-31-8 2,4-Diacetyl deuteroporphyrin IX dimethyl ester CTK8F3817 (CAS 10591-31-8)
- Atosiban Impurity 102 (CAS CATO-C4X-2293102)
- Thapsigargicin (CAS 67526-94-7)
- Ceftaroline Fosamil Impurity C45 (CAS 1286218-70-9)
- 4-(4-((3-Chlorophenyl)sulfonyl)piperazin-1-yl)-6-(2-methyl-1H-imidazol-1-yl)pyrimidine (CAS 1171913-46-4)
- N,N-Bis(2-(2-methoxyethoxy)ethyl)aniline (CAS 484679-02-9)
- 4-[2-Chloro-5-(trifluoromethyl)phenyl]phenol (CAS 634192-46-4)
- N-{3-[(2-Bromoacetyl)amino]phenyl}benzamide (CAS 886014-61-5)
- N'-(5-Chloro-4-methyl-1,3-benzothiazol-2-yl)-N,N-dimethylethane-1,2-diamine (CAS 1105188-47-3)
- tert-Butyl (3-fluoro-5-methylphenyl)carbamate (CAS 1516512-89-2)
- 6-Methoxy-2,2-dimethylcyclohexan-1-amine (CAS 1504527-64-3)
- Methyl 3-(chlorosulfonyl)-5-fluoro-4-methylbenzoate (CAS 1155083-93-4)
- (S)-Oxirane-2-carboxylic acid (CAS 114990-90-8)
- Casein kinase II peptide Substrate (CAS 154444-98-1)
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