1-Bromo-2-ethynyl-3-methylbenzene CAS 1614232-39-1
| CAS No. | 1614232-39-1 |
| Molecular Formula | C9H7Br |
| Molecular Weight | 195.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Bromo-2-ethynyl-3-methylbenzene.
1-Bromo-2-ethynyl-3-methylbenzene (CAS 1614232-39-1), molecular formula C9H7Br and molecular weight 195.06 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-Bromo-2-ethynyl-3-methylbenzene (C9H7Br) is characterized by bromine substitution, an aromatic ring system. 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. 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.
As a certified reference material (CRM), 1-Bromo-2-ethynyl-3-methylbenzene 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 | C9H7Br |
| Molecular Weight | 195.06 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 3-bromo-5-isopropyl-1,2,4-oxadiazole (CAS 121562-07-0)
- 4-bromo-3-methoxy-1-methyl-1H-pyrazole (CAS 1350323-85-1)
- 1-Bromo-4-ethynyl-2-methylbenzene (CAS 1356958-34-3)
- 2-Bromo-4-ethynyl-1-methylbenzene (CAS 1601195-09-8)
- 1-Bromo-2-(prop-2-yn-1-yl)benzene (CAS 182276-11-5)
- (4-bromo-1-methyl-1H-pyrazol-3-yl)methanol (CAS 915707-65-2)
- (5-bromo-1-methyl-1H-imidazol-2-yl)methanol (CAS 861362-06-3)
- 1-Bromo-2-(4-methylphenyl)acetylene (CAS 33491-05-3)
Recommended Standards
- (1-Bromoprop-2-yn-1-yl)benzene (CAS 50874-14-1)
- 2-Bromoindene (CAS 10485-09-3)
- 1-(Bromomethyl)-2-ethynylbenzene (CAS 211508-95-1)
- 1H-indene,3-bromo- (CAS 103028-42-8)
- (2-(Thiomorpholinomethyl)phenyl)(p-tolyl)methanone (CAS 898781-44-7)
- 2-Hexyl-3,5-dimethylpyrazine (CAS 70303-40-1)
- (1-Tosyl-1H-pyrrolo[2,3-β]pyridin-3-yl)boronic acid (CAS 882562-39-2)
- 3-(2-Ethoxy-5-propylphenyl)-1H-pyrazol-5-amine (CAS 501903-52-2)
- Ceftazidime Impurity 82 (CAS CATO-C4X-121282)
- 5-FLUORO-3-ISOTHIOCYANATOISOQUINOLINE (CAS 1221974-45-3)
- N-Isopropylhydroxylamine (CAS 5080-22-8)
- tert-Butyl 2-(4-(aminomethyl)phenyl)acetate oxalate (CAS 479586-25-9)
- 1-Benzyl-N-[(ethylcarbamothioyl)amino]piperidine-4-carboxamide (CAS 866134-74-9)
- Cholecystokinin Octapeptide (1-4) (desulfated) (CAS 80790-40-5)
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