Tungsten(IV) oxide (99.9+%-W) (WO2.9 Blue Sub-oxide) CAS 12037-58-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 12037-58-0 |
| Molecular Formula | O2W |
| Molecular Weight | 215.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tungsten(IV) oxide (99.9+%-W) (WO2.9 Blue Sub-oxide) (CAS 12037-58-0), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: O2W. Molecular weight: 215.84 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | O2W |
| Molecular Weight | 215.84 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Freely soluble in water |
| Stability | Stable under recommended storage conditions |
| CAS Registry Year (est.) | 1960 |
Related Tungsten Standards
- Tungsten(IV) oxide (CAS 12036-22-5)
- Tungsten(VI) oxide (CAS 1314-35-8)
- Tungsten carbide (CAS 12070-12-1)
- Tungsten boride (WB) (CAS 12007-09-9)
- 14265-83-9 Tungsten, isotope of mass 186 Tungsten-186 186W (CAS 14265-83-9)
- 14265-82-8 Tungsten, isotope of mass 184 Tungsten-184 184W (CAS 14265-82-8)
- Tungsten(IV) Sulfide (CAS 12138-09-9)
- 14265-80-6 Tungsten, isotope of mass 182 Tungsten-182 182W (CAS 14265-80-6)
Recommended Standards
- 5-Bromo-3-methylpyridine-4-boronic acid (CAS 1451391-27-7)
- (6-Bromo-4-methylpyridin-3-yl)boronic acid (CAS 1072945-75-5)
- (2-Bromo-6-methylpyridin-4-yl)boronic acid (CAS 2225181-29-1)
- 6-(4-Ethylphenyl)-2-methylpyrimidin-4-amine (CAS 1368679-02-0)
- 6-Chloro-3-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1,4-dihydroquinolin-4-one (CAS 477888-04-3)
- 2,6-Dichloro-3-fluorobenzotrifluoride (CAS 1804514-55-3)
- 1-(4-Fluoro-2-methylphenyl)propan-2-ol (CAS 1595042-46-8)
- 1-Fluoro-2-methyl-4-(trifluoromethoxy)benzene (CAS 86256-57-7)
- Ammoxetine Impurity 11 (CAS CATO-C4X-335711)
- Semaglutide impurity 70 (CAS CATO-C4X-222670)
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 13829788188 / jacky.chen@cato-chem.com