Pyrylium CAS 289-67-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 289-67-8 |
| Molecular Formula | C5H5O |
| Molecular Weight | 81.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Pyrylium (CAS 289-67-8) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C5H5O. Molecular weight: 81.09 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C5H5O |
| Molecular Weight | 81.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
Related Pyrylium Standards
Recommended Standards
- Glycine-<SUP>15</SUP>N,d<SUB>5</SUB> (CAS 116452-92-7)
- Pyridine-2,6-d2 (CAS 17265-96-2)
- 1,3,5-Triazine (CAS 290-87-9)
- 1-(Phenylsulfonyl)-1H-benzo[d][1,2,3]triazole (CAS 4106-18-7)
- Galantamine HBr (CAS 53-04-4)
- 4-tert-Butylpentafluoroethylbenzene (CAS 1092349-84-2)
- 1,3-bis(methylamino)propan-2-ol (CAS 83804-96-0)
- Isopropyl 4-(2,4-dimethoxyphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate (CAS 299449-78-8)
- Hexamethylene tetarmine thiocyanate (CAS 52302-51-9)
- Semaglutide Impurity 157 (x TFA Salt) (CAS CATO-C4X-2226157)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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