Diethyl 4-bromophthalate CAS 38568-41-1
| CAS No. | 38568-41-1 |
| Molecular Formula | C12H13BrO4 |
| Molecular Weight | 301.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Diethyl 4-bromophthalate is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Diethyl 4-bromophthalate (CAS 38568-41-1), molecular formula C12H13BrO4 and molecular weight 301.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C12H13BrO4, Diethyl 4-bromophthalate contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 301.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H13BrO4 |
| Molecular Weight | 301.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Br-containing |
Related Diethyl Standards
- Diethyl 3-bromophthalate (CAS 127413-58-5)
- Diethyl 5-Bromoisophthalate (CAS 127437-29-0)
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- Diethyl 4-bromoisophthalate (CAS 56984-35-1)
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Recommended Standards
- Ethyl 1-(3,4-dichlorophenyl)-4-hydroxy-1H-pyrazole-3-carboxylate (CAS 379239-10-8)
- 7-Bromo-3-phenyl-2H-chromen-2-one (CAS 854900-52-0)
- Ethyl 2-(2-acetyl-4-bromophenoxy)acetate (CAS 34849-50-8)
- 5-[(2,5-Dichlorophenoxy)methyl]-2-furohydrazide (CAS 406470-85-7)
- Ethyl 6-bromo-3-methyl-2,7-dioxo-3,7-dihydro-2H-naphtho[1,2,3-de]quinoline-1-carboxylate (CAS 71205-38-4)
- (3R,4S)-4-Fluoropyrrolidin-3-ol (CAS 1638784-46-9)
- 1-[2-(4-Chlorophenyl)ethyl]-1H-1,3-benzodiazol-5-amine (CAS 1493318-64-1)
- 7-Chlorobenzo[c][1,2,5]oxadiazol-4-amine (CAS 80277-06-1)
- ((R)-1-((S)-1-phenylethyl)pyrrolidin-3-yl)methanol (CAS 1821707-09-8)
- 9H-Thioxanthen-9-ol (CAS 6783-74-0)
- 3-Nitro-4-(3-toluidino)benzoic acid (CAS 452088-49-2)
- 3-acetoxypyridine (CAS 17747-43-2)
- Exemestane Impurity 5 (CAS CATO-C4X-164134)
- Ac-(5-31)Semaglutide (CAS CATO-C4X-2226279)
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