3-(2-Bromophenyl)propiolic acid CAS 858445-41-7
| CAS No. | 858445-41-7 |
| Molecular Formula | C9H5BrO2 |
| Molecular Weight | 225.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-(2-Bromophenyl)propiolic 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.
3-(2-Bromophenyl)propiolic acid (CAS 858445-41-7), molecular formula C9H5BrO2 and molecular weight 225.04 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-(2-Bromophenyl)propiolic acid (C9H5BrO2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 225.04 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C9H5BrO2 |
| Molecular Weight | 225.04 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 tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Bromophenyl Standards
- 3-(3-Bromophenyl)-1,2,4-oxadiazole (CAS 1033202-12-8)
- 3-(2-Bromophenyl)-1,2,4-oxadiazole (CAS 1211582-89-6)
- 5-(2-Bromophenyl)-1,2,4-oxadiazole (CAS 1306604-33-0)
- 5-(3-Bromophenyl)-1,2,4-oxadiazole (CAS 1306606-33-6)
- 3-(4-Bromophenyl)-1,2,4-oxadiazole (CAS 16013-07-3)
- 2-(2-Bromophenyl)-1,3,4-oxadiazole (CAS 928722-52-5)
- 2-(3-Bromophenyl)-1,3,4-oxadiazole (CAS 5378-34-7)
- 2-(4-Bromophenyl)-1,3,4-oxadiazole (CAS 41420-90-0)
Recommended Standards
- 2-Bromoquinazolin-8-ol (CAS 953040-40-9)
- 3-(3-Bromophenyl)propiolic acid (CAS 29835-28-7)
- 2-Bromoquinazolin-4(3H)-one (CAS 872998-62-4)
- 3-(4-Bromophenyl)-1,2,5-oxadiazole (CAS 71420-03-6)
- (R)-1-(2-Methylpyridin-3-yl)ethanamine (CAS 1212936-29-2)
- 7-(4-Chloro-2-fluorophenyl)-7-oxoheptanoic acid (CAS 951889-62-6)
- 2-Chloro-3,6-difluoro-4-hydroxybenzoic acid (CAS 749230-42-0)
- tert-butyl (R)-(4-morpholino-4-oxo-1-(2,4,5-trifluorophenyl)butan-2-yl)carbamate (CAS CATO-C3D-4068)
- Methyl 2-Hydroxy-1-naphthoate (CAS 947-65-9)
- Indapamide Impurity 2 (CAS CATO-C4X-14002)
- N-(5-Acetamido-2-methoxyphenyl)-2-((3-ethyl-5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 618427-62-6)
- methyl (E)-4-cyano-5-((5-cyano-2,6-bis((3-methoxypropyl)amino)-4-methylpyridin-3-yl)diazenyl)-3-methylthiophene-2-carboxylate (CAS 72968-71-9)
- N3-PEG3-C2-PFP ester (CAS 1807530-07-9)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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