1-(3-Bromopropyl)-2-methylbenzene CAS 21851-78-5
| CAS No. | 21851-78-5 |
| Molecular Formula | C10H13Br |
| Molecular Weight | 213.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(3-Bromopropyl)-2-methylbenzene (CAS 21851-78-5), molecular formula C10H13Br and molecular weight 213.11 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(3-Bromopropyl)-2-methylbenzene (C10H13Br) contains bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 213.11 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures 1-(3-Bromopropyl)-2-methylbenzene under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H13Br |
| Molecular Weight | 213.11 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Related Bromopropyl Standards
- 1-(2-Bromopropyl)-2-methylbenzene (CAS 51258-98-1)
- 1-(3-Bromopropyl)-4-methylbenzene (CAS 54540-53-3)
- 1-[(3-Bromopropyl)sulfanyl]-2-methoxyethane (CAS 1153355-88-4)
- 4-(2-Bromopropyl)-3-methylpyridine (CAS 1341882-08-3)
- 2-(2-Bromopropyl)-6-methylpyridine (CAS 1342272-45-0)
- 2-(2-Bromopropyl)-3-methylpyridine (CAS 1484682-58-7)
- 3-(3-Bromopropyl)-4-methylpyridine (CAS 1504422-93-8)
- (3-Bromopropyl)(tert-butyl)sulfane (CAS 119549-23-4)
Recommended Standards
- 1-(2-Bromoethyl)-4-ethylbenzene (CAS 259818-85-4)
- 1-(Bromomethyl)-2-propylbenzene (CAS 651756-38-6)
- 1-(2-Bromoethyl)-3,5-dimethylbenzene (CAS 93427-11-3)
- 1-(bromomethyl)-4-propylbenzene (CAS 91062-39-4)
- 3,5-Dimethyl-4-(p-tolyl)isoxazole (CAS 154822-65-8)
- 2-Chloro-8-fluoro-11-methyl-5H-benzo[e]pyrimido[5,4-b][1,4]diazepin-6(11H)-one (CAS 1956336-03-0)
- 2-Amino-5-phenyl-5-[(thiophen-2-yl)methyl]-4,5-dihydro-1H-imidazol-4-one (CAS 1354934-48-7)
- 1-Methyl-N-(pentan-2-yl)-1h-pyrazol-4-amine (CAS 1153972-32-7)
- Triplatin Tetranitrate (CAS 172903-00-3)
- 2-Bromo-6-fluoro-4-hydroxy-benzaldehyde (CAS 1629141-29-2)
- Ginsenoside Rh8 (CAS 343780-69-8)
- 1-(Trifluoromethyl)cyclohexanecarboxylic Acid (CAS 180918-40-5)
- 4-Isopropoxy-2-methyl-6-(4-(propylsulfonyl)piperazin-1-yl)pyrimidine (CAS 946233-40-5)
- Retatrutide (CAS 2381089-83-2)
Why CATO?
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