.alpha.-Bromo-.gamma.-butyrolactone .alpha.-Bromobutyric acid, .gamma.-lactone .alpha.-Bromobutyrolactone 2(3H)-Furanone, 3-bromodihydro- 2-Bromo-.gamma.-butyrolactone 2-Bromo-4-butanolide 2-Bromobutyrolactone 3-Bromo-2-furanone 5061-21-2 NSC-56959 NSC56959 CAS 5061-21-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 5061-21-2 |
| Molecular Formula | C4H5BrO2 |
| Molecular Weight | 164.99 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order .alpha.-Bromo-.gamma.-butyrolactone .alpha.-Bromobutyric acid, .gamma.-lactone .alpha.-Bromobutyrolactone 2(3H)-Furanone, 3-bromodihydro- 2-Bromo-.gamma.-butyrolactone 2-Bromo-4-butanolide 2-Bromobutyrolactone 3-Bromo-2-furanone 5061-21-2 NSC-56959 NSC56959 (CAS 5061-21-2) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C4H5BrO2. Molecular weight: 164.99 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C4H5BrO2 |
| Molecular Weight | 164.99 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Br-containing |
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Recommended Standards
- 2-propenoic acid, 2-bromo-, methyl ester 4519-46-4 InChI=1/C4H5BrO2/c1-3(5)4(6)7-2/h1H2,2H methyl 2-bromoacrylate (CAS 4519-46-4)
- 72707-66-5 2-(Bromomethyl)propenoic acid 2-Propenoic acid, 2-(bromomethyl)- EINECS 276-774-0 (CAS 72707-66-5)
- Theophylline Impurity 8 (CAS 5309-70-6)
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- Methyl 5,7-Di-tert-butyl-2,3-dihydrobenzofuran-3-acetate (CAS 2070896-45-4)
- 2-(6-Bromopyrimidin-4-yl)acetonitrile (CAS 1805558-44-4)
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- Progesterone EP Impurity F & Progesterone EP Impurity G (CAS 2257421-78-4 & 2257421-79-5)
- Semaglutide impurity 59 (CAS CATO-C4X-222659)
Why CATO?
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