5-Bromo-1-ethyl-2,3-dihydro-1H-indole-2,3-dione CAS 69736-76-1
| CAS No. | 69736-76-1 |
| Molecular Formula | C10H8BrNO2 |
| Molecular Weight | 254.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 254.08 g/mol gives 5-Bromo-1-ethyl-2,3-dihydro-1H-indole-2,3-dione distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromo-1-ethyl-2,3-dihydro-1H-indole-2,3-dione (CAS 69736-76-1), molecular formula C10H8BrNO2 and molecular weight 254.08 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Bromo-1-ethyl-2,3-dihydro-1H-indole-2,3-dione (C10H8BrNO2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Bromo-1-ethyl-2,3-dihydro-1H-indole-2,3-dione 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 | C10H8BrNO2 |
| Molecular Weight | 254.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 2-(7-Bromo-1H-indol-2-yl)acetic acid (CAS 1018591-46-2)
- 2-(6-Bromo-1H-indol-2-yl)acetic acid (CAS 1018635-71-6)
- 2-Bromo-6-(furan-2-ylmethoxy)pyridine (CAS 1065484-89-0)
- 1-Acetyl-5-bromo-2H-indol-3-one (CAS 106698-07-1)
- Methyl 3-Bromo-4-(cyanomethyl)benzoate (CAS 1069114-89-1)
- 3-(5-Bromo-2-methoxyphenyl)-3-oxopropanenitrile (CAS 1071398-50-9)
- Methyl 6-bromo-4-indolecarboxylate (CAS 107650-22-6)
- 5-Bromo-2-methyl-1H-indole-3-carboxylic acid (CAS 1082572-35-7)
Recommended Standards
- 5-Bromo-1,7-dimethyl-2,3-dihydro-1h-indole-2,3-dione (CAS 327982-93-4)
- 5-Bromo-1H-indole-2-carbohydrazide (CAS 20948-71-4)
- 5-(Bromomethyl)-2-methylisoindoline-1,3-dione (CAS 29456-03-9)
- 5-Bromo-1-methyl-1H-indole-2-carboxylic acid (CAS 90766-47-5)
- 4-(2-aminoethyl)-N,N-diethylaniline (CAS 737720-20-6)
- 6-(4-Carboxyphenyl)-2-naphthoic acid (CAS 660825-19-4)
- 1-Mesitylethane-1-sulfonamide (CAS 1247653-77-5)
- 6-Amino-4-chloroquinoline (CAS 1085192-91-1)
- (3-Bromopropyl)(isopropyl)sulfane (CAS 112981-26-7)
- 2-(2,4-difluorophenyl)-2-methylcyclopropan-1-amine hydrochloride (CAS 1803599-51-0)
- (3-Chlorophenyl)(thiazol-2-yl)methanone (CAS 845781-29-5)
- 4-Chloro-2,8-dimethyl-6-phenylimidazo[1,5-a]pyrimidine (CAS 88875-08-5)
- n-{[5-(2-chlorophenyl)-1,3,4-oxadiazol-2-yl]methyl}cyclopropanamine (CAS 791079-97-5)
- Vancomycin Hexapeptide (CAS 115236-65-2)
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