1-(Bromomethyl)-4-ethynylbenzene CAS 351002-91-0
| CAS No. | 351002-91-0 |
| 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-(Bromomethyl)-4-ethynylbenzene.
1-(Bromomethyl)-4-ethynylbenzene (CAS 351002-91-0) is a high-purity analytical reference standard with the molecular formula C9H7Br and a molecular weight of 195.06 g/mol.
Owing to bromine substitution, an aromatic ring system, 1-(Bromomethyl)-4-ethynylbenzene is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 195.06 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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-(Bromomethyl)-4-ethynylbenzene 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.) | 2025 |
| Halogen Content | Br-containing |
Related Bromomethyl Standards
- 1-(Bromomethyl)-2-ethynylbenzene (CAS 211508-95-1)
- 4-(bromomethyl)tetrahydropyran-4-ol (CAS 111511-51-4)
- (S)-4-(Bromomethyl)-2,2-dimethyl-1,3-dioxolane (CAS 113428-57-2)
- 1346603-73-3 4-(Bromomethyl)-2,2-dimethyl-1,3-dioxolane-d5 (CAS 1346603-73-3)
- 4-(Bromomethyl)-2-fluorothiophene (CAS 1400991-71-0)
- (R)-4-(Bromomethyl)-2,2-dimethyl-1,3-dioxolane (CAS 14437-87-7)
- 1-(Bromomethyl)-1-fluorocyclohexane (CAS 17171-00-5)
- 1-(Bromomethyl)-2-fluorocyclohexane (CAS 1780952-44-4)
Recommended Standards
- 1-Bromo-2-(4-methylphenyl)acetylene (CAS 33491-05-3)
- (5-bromo-1-methyl-1H-imidazol-2-yl)methanol (CAS 861362-06-3)
- 1-Bromo-2-(prop-1-yn-1-yl)benzene (CAS 92672-77-0)
- (4-bromo-1-methyl-1H-pyrazol-3-yl)methanol (CAS 915707-65-2)
- 2-(Pentan-3-yl)pyrimidin-4-amine (CAS 1250530-29-0)
- Sodium 2-((((2R,3S,5R)-5-(5-ethyl-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-3-hydroxytetrahydrofuran-2-yl)methoxy)oxidophosphoryl)acetate (CAS 117626-81-0)
- 2-(4-(Dimethylamino)piperidin-1-yl)-5-nitrobenzaldehyde (CAS 1157005-30-5)
- (4-(Difluoromethyl)-2-methoxyphenyl)(pyridin-4-yl)methanone (CAS 1261807-80-0)
- Methyl 5-(4-bromo-3-methylphenyl)furan-2-carboxylate (CAS 1267172-53-1)
- 3-((5-Methylpyridin-2-yl)oxy)aniline (CAS 901920-02-3)
- 4-Chloro-2-(difluoromethyl)-3-iodo-5-methylpyridine (CAS 1806004-71-6)
- 2-(3-Methoxyphenyl)thiazole-5-carbaldehyde (CAS 915923-79-4)
- 1-(3-Bromo-5-fluorophenyl)-2-fluoro-2-methylpropan-1-one (CAS 1147871-75-7)
- Staphylococcus Aureus Protein A (SpA)-Derived Peptide (H-2228.0005) (CAS 144979-26-0)
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