2-(5-Bromo-2-ethoxybenzenesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid CAS 1008962-07-9
| CAS No. | 1008962-07-9 |
| Molecular Formula | C18H18BrNO5S |
| Molecular Weight | 440.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution, 2-(5-Bromo-2-ethoxybenzenesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 440.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
2-(5-Bromo-2-ethoxybenzenesulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1008962-07-9), molecular formula C18H18BrNO5S and molecular weight 440.31 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C18H18BrNO5S |
| Molecular Weight | 440.31 g/mol |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- (S)-2-((5-Bromo-2-ethoxyphenyl)sulfonyl)-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1212492-46-0)
- 3946AH 4-Bromo-N-(2,3-dihydro-6-methoxy-1,3-dimethyl-2-oxo-1H-benzimidazol-5-yl)-2-methyl-benzenesulfonamide 919973-83-4 C17H18BrN3O4S (CAS 919973-83-4)
- 4-Bromo-1-trityl-1H-pyrazolo[3,4-c]pyridine (CAS 1416373-25-5)
- 2-(5-Bromo-4-formyl-2-methoxyphenoxy)-N,N-diphenylacetamide (CAS 486994-18-7)
- 3-Bromo-1-trityl-1H-pyrazolo[4,3-b]pyridine (CAS 633328-34-4)
- 5-Bromo-1-trityl-1H-benzo[d][1,2,3]triazole (CAS 885066-56-8)
- 5-Bromo-2-tritylisoindoline (CAS 405150-03-0)
- 9-Bromo-2-(furan-2-yl)-5-(3-nitrophenyl)-5,10b-dihydro-1H-benzo[e]pyrazolo[1,5-c][1,3]oxazine (CAS 799779-27-4)
Recommended Standards
- Boc-Tyr(2,6-dichloro-Bzl)-OH (CAS 40298-71-3)
- N-(3-bromophenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105207-18-8)
- Di-tert-butyl (5-iodo-4-methylthiazol-2-yl)iminodicarbonate (CAS 2770403-58-0)
- N-(4-bromophenyl)-2-(4-oxo-7-phenylthieno[3,2-d]pyrimidin-3(4H)-yl)acetamide (CAS 1105235-47-9)
- 3-Amino-2-ethoxypyridine (CAS 51468-01-0)
- 6-Amino-4-methylnicotinaldehyde (CAS 1000813-01-3)
- 4,4'-(Anthracene-9,10-diyl)bis(1-(4-isopropylphenyl)pyridin-1-ium)chloride (CAS 2459621-96-4)
- 2-((6-Bromoquinazolin-4-yl)amino)ethan-1-ol (CAS 99057-99-5)
- (3-Isopropylphenyl)methanol (CAS 51473-70-2)
- 1-(2-Chlorophenyl)-3-(trifluoromethyl)-1H-pyrazole-5-carboxylic acid (CAS 437711-25-6)
- 1-Bromo-2-fluoro-4-isopropoxybenzene (CAS 1036724-61-4)
- N-Butyl-N-methyl-2-pyrrolidinecarboxamidehydrochloride (CAS 1236263-39-0)
- N-Nitroso-N-methyl-3-aminopropionic Acid-d3 (CAS 1215691-18-1)
- Hexapeptide-9 (CAS 885024-94-2)
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