4,5-Dibromopentanoic acid CAS 78181-02-9
| CAS No. | 78181-02-9 |
| Molecular Formula | C5H8Br2O2 |
| Molecular Weight | 259.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4,5-Dibromopentanoic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4,5-Dibromopentanoic acid (CAS 78181-02-9), molecular formula C5H8Br2O2 and molecular weight 259.92 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 4,5-Dibromopentanoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 259.92 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 4,5-Dibromopentanoic acid 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 | C5H8Br2O2 |
| Molecular Weight | 259.92 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 1.0 |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Br-containing |
Related Dibromopentanoic Standards
Recommended Standards
- 2,3-Dichloro-4-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)pyridine (CAS 2096995-81-0)
- 2,2-Dibromopropanoic acid ethyl ester (CAS 34757-17-0)
- 2,3-Dibromo-3-methylbutanoic acid (CAS 80573-34-8)
- Methyl 2,3-dibromo-2-methylpropanoate (CAS 3673-79-8)
- 3-(1-Methanesulfonylcyclopropyl)benzoic acid (CAS 1890064-34-2)
- 5-Methyl-2-(2-nitrophenyl)-1H-pyrazol-3(2H)-one (CAS 40339-61-5)
- 4-Chloro-3-(n-(p-tolyl)sulfamoyl)benzoic acid (CAS 109029-98-3)
- 3-Methyl-N-(4-methylbenzyl)pentan-2-amine (CAS 1036583-91-1)
- 6-Bromo-4-ethylindoline-2,3-dione (CAS 147494-35-7)
- 2-(2,4-Dichloro-6-formylphenoxy)-N-(p-tolyl)acetamide (CAS 1082409-25-3)
- Regadenoson Impurity U18 (CAS 2096-10-8)
- 4-Methyl-2H-furo[2,3-h]chromene-2,9(8H)-dione (CAS 93353-47-0)
- (5-Chloro-2-isopropylpyridin-3-yl)boronic acid (CAS 2225170-88-5)
- C-telopeptide (CAS 162929-64-8)
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