Lanthanum(III) oxide CAS 1312-81-8
| CAS No. | 1312-81-8 |
| Molecular Formula | La2O3 |
| Molecular Weight | 325.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Lanthanum(III) oxide (La2O3) is characterized by an inorganic composition. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
Lanthanum(III) oxide (CAS 1312-81-8), molecular formula La2O3 and molecular weight 325.81 g/mol, is a CATO reference standard with documented purity and traceability.
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 | La2O3 |
| Molecular Weight | 325.81 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.) | 1957 |
Related Lanthanum Standards
- Lanthanum(III) isopropoxide (CAS 19446-52-7)
- Lanthanum(III) bromide (CAS 13536-79-3)
- Lanthanum(III) chloride (CAS 10099-58-8)
- Lanthanum aluminum oxide (CAS 12003-65-5)
- Calcium lanthanum sulfide (CAS 12525-03-0)
- Lanthanum(III) fluoride (CAS 13709-38-1)
- Lanthanum(III) hydroxide (CAS 14507-19-8)
- Lanthanum(III) nitride, 99.9% (REO) (CAS 25764-10-7)
Recommended Standards
- 2-Chloro-N-(2-(isopropylsulfonyl)phenyl)-5-methylpyrimidin-4-amine (CAS 1032903-48-2)
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- 7-Chloro-4-(4-(pyrimidin-2-yl)piperazin-1-yl)quinoline (CAS 643042-43-7)
- N-benzyl-5-chloro-N-methyl-4-(methylamino)pyridine-3-sulfonamide (CAS 1352528-87-0)
- 2-(3-Amino-4-chlorophenyl)acetonitrile (CAS 1261580-99-7)
- 1,3,2-Dioxathiolane 2,2-Dioxide (CAS 1072-53-3)
- 6-Hydroxybenzofuran-2,3-dione (CAS 1443543-56-3)
- N-Benzylstearamide (CAS 5327-45-7)
- 2-(6-Chloro-[3,3'-bipyridin]-5-yl)acetonitrile (CAS 1227607-46-6)
- 2-(cyclohex-1-en-1-yl)-2-methylpropan-1-amine (CAS 1598255-56-1)
- 2-Methyl-5-(trifluoromethyl)isoindoline (CAS 205370-11-2)
- 2,6-Dichloropyridin-4(1H)-one (CAS 253435-44-8)
- 1-(3-Chloro-4-(trifluoromethoxy)benzyl)-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (CAS 1604036-66-9)
- Semaglutide Impurity 190 (CAS CATO-C4X-2226190)
Why CATO?
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