Bismuth(III) oxide CAS 1304-76-3
| CAS No. | 1304-76-3 |
| Molecular Formula | Bi2O3 |
| Molecular Weight | 465.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies Bismuth(III) oxide (CAS 1304-76-3), a certified reference material (molecular formula Bi2O3, MW 465.96 g/mol) for analytical method development and quality control.
Bismuth(III) oxide (Bi2O3) contains an inorganic composition. It is notably hygroscopic; these physicochemical properties determine the optimal preparation and storage of its standard solutions.
As a certified reference material (CRM), Bismuth(III) oxide 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.
Physical & Chemical Properties
| Molecular Formula | Bi2O3 |
| Molecular Weight | 465.96 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 Bismuth Standards
- Bismuth(III) sulfide (CAS 1345-07-9)
- Bismuth Citrate (100 mg) (CAS 813-93-4)
- 22306-37-2 Bismuth acetate Bismuth triacetate Acetic acid, bismuth(3+) salt EINECS 244-904-5 HSDB 2186 NSC 370498 (CAS 22306-37-2)
- Bismuth Subsalicylate (CAS 14882-18-9)
- Bismuth Oxyiodide (CAS 7787-63-5)
- Bismuth(III) carbonate (CAS 16508-95-5)
- Bismuth vanadium oxide (CAS 14059-33-7)
- Bismuth selenide (CAS 12068-69-8)
Recommended Standards
- Cisapride (CAS 81098-60-4)
- (2E)-7-(4-Chlorophenoxy)-2-{[(2,5-dimethylphenyl)amino]methylidene}-3-phenyl-2,3-dihydro-1H-inden-1-one (CAS 337921-41-2)
- Cisapride impurity 1 (CAS 104860-66-4)
- 3-(2-Chlorobenzyl)-6,7-dimethoxy-2-(phenethylthio)quinazolin-4(3H)-imine (CAS 866144-93-6)
- 2-(Acetyloxy)-5-chlorobenzoic acid (CAS 1734-62-9)
- 2-Fluoro-N-((4-methylthiazol-5-yl)methyl)aniline (CAS 1464955-42-7)
- 2-(6-cyanopyridin-3-yl)acetic acid (CAS 1211526-77-0)
- 4-Ethoxy-3-(morpholine-4-carboxamido)benzenesulfonyl chloride (CAS 678186-07-7)
- 7,7-Azo-3-a,12-a-dihydroxytaurocholanic Acid Sodium Salt (CAS 72741-86-7)
- Crisaborole lmpurity 98 (CAS CATO-C4X-202198)
- N-(4-cyanophenyl)-4-(pyridin-2-yl)piperazine-1-carbothioamide (CAS 497060-96-5)
- 6-Bromo-1-ethyl-1,2,3,4-tetrahydroquinoxaline (CAS 1511294-78-2)
- 6-Fluoro-2-quinolinemethanol (CAS 165111-37-5)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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