α-Methylene-γ-butyrolactone (stabilized with 2,6-Di-tert-butyl-p-cresol) CAS 547-65-9
| CAS No. | 547-65-9 |
| Molecular Formula | C5H6O2 |
| Molecular Weight | 98.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, α-Methylene-γ-butyrolactone (stabilized with 2,6-Di-tert-butyl-p-cresol) is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 98.10 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
α-Methylene-γ-butyrolactone (stabilized with 2,6-Di-tert-butyl-p-cresol) (CAS 547-65-9) is a high-purity analytical reference standard with the molecular formula C5H6O2 and a molecular weight of 98.10 g/mol.
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), α-Methylene-γ-butyrolactone (stabilized with 2,6-Di-tert-butyl-p-cresol) 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 | C5H6O2 |
| Molecular Weight | 98.10 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
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