Niobium(V) oxalate CAS 21348-59-4
| CAS No. | 21348-59-4 |
| Molecular Formula | C10H5NbO20 |
| Molecular Weight | 538.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Niobium(V) oxalate (CAS 21348-59-4), a certified reference material (molecular formula C10H5NbO20, MW 538.04 g/mol) for analytical method development and quality control.
Based on its molecular formula C10H5NbO20, Niobium(V) oxalate contains a carbohydrate-derived structure; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 538.04 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Niobium(V) oxalate 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 | C10H5NbO20 |
| Molecular Weight | 538.04 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Niobium Standards
- Niobium(V) bromide (CAS 13478-45-0)
- Niobium(V) iodide (CAS 13779-92-5)
- Niobium(V) chloride (CAS 10026-12-7)
- Niobium(V) oxide (CAS 1313-96-8)
- Niobium(V) fluoride niobium(v)fluoride niobium pentafluoride columbium pentafluoride niobium (v) fluoride niobium fluoride 7783-68-8 (CAS 7783-68-8)
- Sodium niobium oxide, Puratronic|r, 99.997% (metals basis) (CAS 12034-09-2)
- Niobium(IV) oxide (CAS 12034-59-2)
- Niobium boride (CAS 12007-29-3)
Recommended Standards
- 1,1,1,2,2,3,3,4,4,5,5,6,6,7,7-Pentadecafluoro-9-iododecane (CAS 25291-12-7)
- Ceritinib Impurity 12 (CAS CATO-C4X-104812)
- N-(5-Chloro-2-methoxyphenyl)-2-(10-(4-(2-hydroxyethyl)piperazine-1-carbonyl)-3,4-dihydrobenzo[b][1,6]naphthyridin-2(1H)-yl)acetamide (CAS 1228168-54-4)
- Perfluorodecane (CAS 307-45-9)
- 4-(Difluoromethyl)-1H-indole-2-carboxylic acid (CAS 2167142-20-1)
- 6-Chloro-1-methyl-1H-pyrrolo[3,2-c]pyridine-2-carboxylic acid (CAS 1780720-24-2)
- (2E)-2-Cyano-3-(furan-3-yl)prop-2-enoic acid, E (CAS 1446140-97-1)
- 2-(4-(Bromomethyl)phenyl)pyridine hydrochloride (CAS 257907-04-3)
- 4-Chloro-1-ethyl-6-methyl-2-oxo-1,2-dihydropyridine-3-carbaldehyde (CAS 1018525-23-9)
- Methyl 4-((4-(2-hydroxyethyl)piperazin-1-yl)methyl)benzoate (CAS 415952-34-0)
- 1-(4-Aminopiperidin-1-yl)propan-1-one hydrochloride (CAS 1158779-86-2)
- (6-nitrobenzo[1,3]dioxol-5-yl) acetate (CAS 7107-08-6)
- 2-(3-(2-METHYLCYCLOHEXYLOXY)PHENYL)ETHANOL (CAS 2089648-78-0)
- Tirzepatide Impurity 24 X TFA Salt (CAS CATO-C4X-324024)
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