3-bromocyclohexane-1,2-dione CAS 24829-91-2
| CAS No. | 24829-91-2 |
| Molecular Formula | C6H7BrO2 |
| Molecular Weight | 191.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-bromocyclohexane-1,2-dione (CAS 24829-91-2), molecular formula C6H7BrO2 and molecular weight 191.02 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-bromocyclohexane-1,2-dione (C6H7BrO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3-bromocyclohexane-1,2-dione 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 | C6H7BrO2 |
| Molecular Weight | 191.02 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 | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Br-containing |
Related bromocyclohexane Standards
- 2-bromocyclohexane-1-carbonitrile (CAS 123804-87-5)
- 1-bromocyclohexane-1-carbonitrile (CAS 676132-35-7)
- 1-Bromocyclohexane-1-carboxylic acid (CAS 55106-53-1)
- 4-Bromocyclohexane-1-carboxylic acid (CAS 89892-96-6)
- Bromocyclohexane-d11 (CAS 35558-49-7)
- Bromocyclohexane (CAS 108-85-0)
- Methyl 4-bromocyclohexane-1-carboxylate (CAS 101654-20-0)
- Ethyl 4-bromocyclohexane-1-carboxylate (CAS 190717-38-5)
Recommended Standards
- 3-Bromobicyclo[2.1.0]Pentane-1-carboxylic acid (CAS 2386560-87-6)
- 4-Bromo-5,6-dihydro-2H-pyran-3-carboxaldehyde (CAS 904744-54-3)
- 2-Bromo-1,3-cyclohexanedione (CAS 60060-44-8)
- 4-Bromocyclohexa-3,5-diene-1,2-diol (CAS 82683-93-0)
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- 2-Acetyl-6-methyl-4,5-dihydropyridazin-3(2H)-one (CAS 205056-38-8)
- 5-bromo-3,4-dihydro-2H-1-benzopyran-2-one (CAS 1637490-76-6)
- Caspofungin Ethanolamine Impurity (CAS CATO-C4X-157540)
- 2-Amino-2-(4-iodophenyl)acetic acid (CAS 299167-68-3)
- 2-Chloro-3-fluoro-4-methylbenzoic acid (CAS 1427327-87-4)
- 3-(2,5-Dimethyl-1H-pyrrol-1-yl)-5-iodo-1-methyl-1H-pyrazole (CAS 1654058-23-7)
- 1-(3-Amino-6-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridin-2-yl)ethan-1-one (CAS 625377-76-6)
- Semaglutide impurity 75 (CAS CATO-C4X-222675)
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