Bromophenol Blue CAS 115-39-9
| CAS No. | 115-39-9 |
| Molecular Formula | C19H10Br4O5S |
| Molecular Weight | 669.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
Bromophenol Blue (CAS 115-39-9) is a high-purity analytical reference standard with the molecular formula C19H10Br4O5S and a molecular weight of 669.96 g/mol.
Bromophenol Blue (C19H10Br4O5S) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H10Br4O5S |
| Molecular Weight | 669.96 g/mol |
| Purity | Technical Grade |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
Related Bromophenol Standards
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- 3-Benzyl-4-bromophenol (CAS 1383790-49-5)
- 4-Benzyl-2-bromophenol (CAS 155291-43-3)
- 2-Benzyl-4-bromophenol (CAS 19578-80-4)
- 2-Benzyl-5-bromophenol (CAS CATO-C4X-294310)
- 4-Bromophenol 13C6 (CAS 1323940-38-0)
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Recommended Standards
- (SP-4-2)-(Acetonitrile)[N2-(2'-cyano-2-ethyl-4-fluoro[1,1'-biphenyl]-3-yl)-N6-(2,6-dimethoxyphenyl)-2,6-pyridinedicarboxamidato(2-)-κN1,κN2,κN6]palladium (CAS 2098919-08-3)
- Paliperidone Impurity 37 (CAS CATO-C4X-1724137)
- 2-(Dioctadecylcarbamoyl)benzoic acid (CAS 127733-92-0)
- 2-((6-(5-Fluoro-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-1-carboxamido)hexanoyl)oxy)propane-1,3-diyl bis(decanoate) (CAS 81821-86-5)
- 3,4-Dimethoxy-N,N-dimethylbenzamide (CAS 6967-45-9)
- Potassium 5-(pyridin-4-yl)-1,3,4-oxadiazole-2-carboxylate (CAS 1432681-97-4)
- Anthracene-9-carbothioamide (CAS 1347815-19-3)
- 6-(Tert-butyl)-2-hydroxy-4-(trifluoromethyl)nicotinonitrile (CAS 478049-68-2)
- Methyl 2,3-dioxoindoline-4-carboxylate (CAS 153072-43-6)
- 4-Bromo-3-cyano-5-hydroxybenzoic acid (CAS 1805417-11-1)
- 4-Bromo-1,5-dimethyl-1h-pyrazol-3-amine (CAS 154787-28-7)
- 3-Amino-5-ethyl-1H-pyrazole-4-carbonitrile (CAS 63680-91-1)
- Methyl 3-bromo-5-(trifluoromethoxy)benzoate (CAS 1306763-53-0)
- Peptide 440 (CAS CATO-CPTD788440)
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