4-Bromobenzoic anhydride CAS 1633-33-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1633-33-6 |
| Molecular Formula | C14H8Br2O3 |
| Molecular Weight | 384.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Bromobenzoic anhydride (CAS 1633-33-6) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C14H8Br2O3. Molecular weight: 384.02 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C14H8Br2O3 |
| Molecular Weight | 384.02 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
Related Bromobenzoic Standards
- 4-Bromobenzoic acid 2-cyclohexylidenehydrazide (CAS 304478-23-7)
- 3-Acetyl-5-bromobenzoic acid methyl ester (CAS 444992-78-3)
- 5-Acetyl-2-bromobenzoic acid (CAS 1612219-56-3)
- 2-Acetyl-4-bromobenzoic acid (CAS 741698-90-8)
- 3-Acetyl-5-bromobenzoic acid (CAS 258273-37-9)
- 4-Acetyl-2-bromobenzoic acid (CAS 93273-64-4)
- 24398-88-7 3-BROMOBENZOIC ACID ETHYL ESTER AS03589 Ethyl 3-bromobenzoate M-BROMO BENZOIC ACID ETHYL ESTER RARECHEM AL BI 0052 (CAS 24398-88-7)
- 2-METHYL-3-BROMOBENZOIC ACID 3-BROMO-2-METHYLBENZOIC ACID 3-BROMO-O-TOLUIC ACID 76006-33-2 BC002816 BENZOIC ACID, 3-BROMO-2-METHYL- (CAS 76006-33-2)
Recommended Standards
- 1-Bromo-5-(tert-butyl)-2-iodo-3-nitrobenzene (CAS 1160573-93-2)
- (2-Bromobenzoyl) 2-bromobenzoate (CAS 49619-44-5)
- 5-Bromo-N-(2-hydroxypropyl)-2-iodobenzamide (CAS 1153232-94-0)
- 2,4-bis(2,2,2-Trifluoroethoxy)benzoic Acid (CAS 35480-51-4)
- 3-Chloro-5-fluoro-3-(4-methylpiperazinomethyl) benzophenone (CAS 898789-15-6)
- 2-(Benzo[d][1,3]dioxol-5-yloxy)nicotinic acid (CAS 214758-41-5)
- Ethyl 1-(3-(trifluoromethyl)phenyl)-1H-1,2,4-triazole-3-carboxylate (CAS 1245643-77-9)
- 3,5-Dibromo-2-(difluoromethyl)pyridine (CAS 1627906-64-2)
- Dabrafenib Impurity 34 (CAS 1195767-90-8)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
Why CATO?
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