2-Ethylhexyl Tetrabromophthalate CAS 61776-60-1
| CAS No. | 61776-60-1 |
| Molecular Formula | C16H18Br4O4 |
| Molecular Weight | 593.93 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Ethylhexyl Tetrabromophthalate (CAS 61776-60-1) is a high-purity analytical reference standard with the molecular formula C16H18Br4O4 and a molecular weight of 593.93 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 2-Ethylhexyl Tetrabromophthalate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 593.93 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 2-Ethylhexyl Tetrabromophthalate 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 | C16H18Br4O4 |
| Molecular Weight | 593.93 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Halogen Content | Br-containing |
Related Ethylhexyl Standards
- 2,2'-((9,9-Bis(2-ethylhexyl)-9h-fluorene-2,7-diyl)bis(oxy))bis(1,3,2-dioxaborinane) (CAS 344782-49-6)
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- 9'-(2-Ethylhexyl)-9'H-9,2':7',9''-tercarbazole (CAS 1021423-90-4)
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- 2,9-Bis(2-ethylhexyl)anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetraone (CAS 82531-03-1)
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Recommended Standards
- Tetrabromobisphenol S Dimethyl Ether (CAS 70156-79-5)
- Liothyronine Impurity 5 (CAS 4299-64-3)
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- 2,2'-(Methylimino)bis(N,N-di-n-octylacetamide) (CAS 1000668-90-5)
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- 4-Nitropicolinic acid hydrate (CAS 929257-73-8)
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- (4-Fluorophenyl)trimethylsilane (CAS 455-17-4)
- 2-Isopropyl-4-methyl-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridine (CAS 1780323-05-8)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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