2-[5-Bromo-3'-(4-hydroxyphenyl)-2,4'-dioxo-1,2-dihydrospiro[indole-3,2'-[1,3]thiazolidine]-5'-yl]acetic acid CAS 1092344-32-5
| CAS No. | 1092344-32-5 |
| Molecular Formula | C18H13BrN2O5S |
| Molecular Weight | 449.28 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-[5-Bromo-3'-(4-hydroxyphenyl)-2,4'-dioxo-1,2-dihydrospiro[indole-3,2'-[1,3]thiazolidine]-5'-yl]acetic acid is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-[5-Bromo-3'-(4-hydroxyphenyl)-2,4'-dioxo-1,2-dihydrospiro[indole-3,2'-[1,3]thiazolidine]-5'-yl]acetic acid (CAS 1092344-32-5), molecular formula C18H13BrN2O5S and molecular weight 449.28 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-[5-Bromo-3'-(4-hydroxyphenyl)-2,4'-dioxo-1,2-dihydrospiro[indole-3,2'-[1,3]thiazolidine]-5'-yl]acetic acid (C18H13BrN2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 449.28 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C18H13BrN2O5S |
| Molecular Weight | 449.28 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 1989 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Bromo Standards
- N-(2-bromo-4-nitrophenyl)-2-((5-(m-tolyl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 337490-43-4)
- N-(2-bromo-4-nitrophenyl)-2-((5-(p-tolyl)-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 337489-45-9)
- Methyl 6-Bromo-2,6-dideoxy-α-D-ribo-hexopyranoside Dibenzoate (CAS 18933-67-0)
- 4-((3-Bromo-4-hydroxy-5-methoxybenzylidene)amino)-3-(3-ethoxyphenyl)-1H-1,2,4-triazole-5(4H)-thione (CAS 497921-98-9)
- 5-Bromo-2',3',5'-tri-O-acetyluridine (CAS 105659-32-3)
- Ethyl 6-bromo-5-hydroxy-1-methyl-2-((((phenylthio)methyl)amino)methyl)-1H-indole-3-carboxylate (CAS 1704066-66-9)
- 6-Bromo-13,13-dimethyl-11-phenyl-13H-indeno[1,2-b]anthracene (CAS 1214723-05-3)
- 1-Bromo-1'-diphenylphosphinoferrocene (CAS 185223-97-6)
Recommended Standards
- 2-[5,7-Bis(trifluoromethyl)-1,8-naphthyridin-2-yl]-2-[4-(trifluoromethyl)phenyl]acetonitrile (CAS 478049-39-7)
- 5,6-Epoxyhexyltriethoxysilane (CAS 167426-89-3)
- 3-[1-(5-Bromofuran-2-carbonyl)piperidin-4-yl]-4-[(4-fluorophenyl)methyl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775547-65-3)
- 2-((5-(2-Bromophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(2-methyl-4-nitrophenyl)acetamide (CAS 332100-78-4)
- 2-Bromo-1-(3-methylisoxazol-4-yl)ethanone (CAS 59986-36-6)
- 1-(4-Methanesulfonyl-phenyl)-2-phenyl-ethane-1,2-dione (CAS 54945-18-5)
- 3-(Cyclopropylmethyl)-4-ethyl-1h-pyrazol-5-amine (CAS 1340489-85-1)
- Bisacodyl Impurity 12 Disodium (CAS 71384-45-7)
- (E)-Ethyl 5-(4-methoxybenzylidene)-2-methyl-4-oxo-4,5-dihydrofuran-3-carboxylate (CAS 60404-04-8)
- Propyl-(2-trifluoromethylsulfanyl-ethyl)-ammonium chloride (CAS 1286744-09-9)
- 2-(tert-Butyl)-6-(dimethylamino)phenol (CAS 1243475-04-8)
- N,N-dimethyl-3-(piperidin-3-yl)-1H-pyrazole-4-carboxamide dihydrochloride (CAS 1803584-06-6)
- 2-(tert-Butoxy)-4-cyclopropoxy-3-iodopyridine (CAS 1243322-42-0)
- Tirzepatide Impurity 10 (CAS CATO-C4X-324010)
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