2-Bromo-1,1':3',1''-terphenyl CAS 1133796-49-2
| CAS No. | 1133796-49-2 |
| Molecular Formula | C18H13Br |
| Molecular Weight | 309.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 309.20 g/mol gives 2-Bromo-1,1':3',1''-terphenyl distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Bromo-1,1':3',1''-terphenyl (CAS 1133796-49-2), molecular formula C18H13Br and molecular weight 309.20 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Bromo-1,1':3',1''-terphenyl (C18H13Br) contains bromine substitution, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 309.20 g/mol, it falls into the moderately-high-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.
As a certified reference material (CRM), 2-Bromo-1,1':3',1''-terphenyl 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 | C18H13Br |
| Molecular Weight | 309.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 5-bromo-m-terphenyl (CAS 103068-20-8)
- 6-Bromo-N-(4-cyanobenzyl)hexanamide (CAS 1052148-20-5)
- 1159977-16-8 4-(4-Bromo-1-butyn-1-yl)-alpha,alpha-dimethyl-benzeneacetic Acid Methyl Ester (CAS 1159977-16-8)
- 6'-Bromo-4-methoxyspiro[cyclohexane-1,2'-inden]-1'(3'H)-one (CAS 1245515-16-5)
- 2'-Bromo-1,1':3',1''-terphenyl (CAS 126866-29-3)
- 4-Bromo-p-terphenyl (CAS 1762-84-1)
- 3-Bromo-p-terphenyl (CAS 1762-87-4)
- (R)-4-Bromo-N-(quinuclidin-3-yl)benzamide (CAS 355386-88-8)
Recommended Standards
- 4,4′-Methoxychlor Olefin (CAS 2132-70-9)
- (1R,4r)-6'-bromo-4-methoxyspiro[cyclohexane-1,2'-inden]-1'(3'H)-one (CAS 1245516-72-6)
- (E)-6,6'-(diazene-1,2-diyl)bis(3-chloro-2-methylaniline) (CAS CATO-C3D-262911)
- 951884-53-0 3,5-Dichloro-3',5'-dimethyl-4'-methoxybenzophenone MFCD09801556 (CAS 951884-53-0)
- (E)-4-Methyl-2-styrylbenzaldehyde 120347-58-2 (CAS 120347-58-2)
- 1-(9-Amino-1-hydroxyacridin-2-yl)-2-(methylsulfinyl)ethanone (CAS 189254-22-6)
- 3-((2-Methylcyclobutyl)methoxy)benzaldehyde (CAS 1708037-61-9)
- 2,4-Dimethylnonan-4-ol (CAS 74356-31-3)
- (4-methyl-3,4-dihydro-2H-1,4-benzoxazin-6-yl)methanol (CAS 1216059-50-5)
- 1-[5-(3-Chlorophenyl)isoxazol-3-yl]ethanol (CAS 657427-36-6)
- 6-Formylindolo[3,2-β]carbazole (CAS 172922-91-7)
- 2-(1-(1-Fluorovinyl)cyclobutyl)acetic acid (CAS 2138111-32-5)
- 4-Methyl-2-((2-methylbut-3-yn-2-yl)amino)benzoic acid (CAS 1343891-25-7)
- GnRH Associated Peptide (GAP) (1-13), human (CAS 100111-07-7)
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