Bis(cyclopentadiene)tungsten(IV)dihydride CAS 1271-33-6
| CAS No. | 1271-33-6 |
| Molecular Formula | H2W |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Bis(cyclopentadiene)tungsten(IV)dihydride (CAS 1271-33-6), molecular formula H2WC5H5 and molecular weight 250.95 g/mol, is a CATO reference standard with documented purity and traceability.
Bis(cyclopentadiene)tungsten(IV)dihydride (H2WC5H5) contains an organic framework. Its physicochemical properties are representative of its class; 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.
As a certified reference material (CRM), Bis(cyclopentadiene)tungsten(IV)dihydride 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 | H2W 2*C5H5 |
| Molecular Weight | 250.95 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.5 |
| CAS Registry Year (est.) | 1957 |
Related Bis Standards
- Bis(cyclopentadiene)hafnium(IV) dichloride (CAS 12116-66-4)
- Bis(cyclopentadiene)chromium(II) (CAS 1271-24-5)
- Bis(cyclopentadiene)nickel(II) (CAS 1271-28-9)
- Bis(cyclopentadiene)cobalt(II) (CAS 1277-43-6)
- Bis(cyclopentadiene)ruthenium(II) (CAS 1287-13-4)
- Cyclopentadiene-1,2,3,4,5-pentacarboxylic acid pentylmethyl ester (CAS 16691-59-1)
Recommended Standards
- Tetrahydro-1,4-thiazepan-5-one-1,1-dioxide (CAS 16906-20-0)
- 2-(2-Bromoethoxy)-1,4-dimethylbenzene (CAS 37136-96-2)
- N-(4-Butoxyphenyl)-2-chloropropanamide (CAS 1181695-98-6)
- 2-(Aminomethyl)-3-cyano-4-(difluoromethyl)pyridine-6-carboxaldehyde (CAS 1805506-00-6)
- 2-Deoxy-L-ribose-anilide (CAS 104578-89-4)
- 1-allyl-5-(4-chlorophenyl)-1,3-dihydro-2H-imidazole-2-thione (CAS 743441-92-1)
- 2-(Chloromethyl)-1-(2-phenylethyl)-1H-benzimidazole (CAS 89218-90-6)
- 3-Benzyl-1H-pyrazole-5-carboxylic acid (CAS 595610-51-8)
- 2,2,2-Trifluoroethyl (3,4-dichlorophenyl)carbamate (CAS 1736-43-2)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
Why CATO?
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