4-Bromo-7-methoxy-1H-indole-2-carboxylic acid CAS 900640-38-2
| CAS No. | 900640-38-2 |
| Molecular Formula | C10H8BrNO3 |
| Molecular Weight | 270.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-Bromo-7-methoxy-1H-indole-2-carboxylic acid (C10H8BrNO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 270.08 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4-Bromo-7-methoxy-1H-indole-2-carboxylic acid (CAS 900640-38-2), molecular formula C10H8BrNO3 and molecular weight 270.08 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.
As a certified reference material (CRM), 4-Bromo-7-methoxy-1H-indole-2-carboxylic acid 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 | C10H8BrNO3 |
| Molecular Weight | 270.08 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 4-Bromo-5-methoxy-1H-indole-2-carboxylic acid (CAS 92622-97-4)
- 5-(2-bromo-5-methoxyphenyl)-1,3,4-oxadiazol-2-amine (CAS 939962-84-2)
- 4-(Difluoromethoxy)phenylboronic Acid Pinacol Ester (CAS 887757-48-4)
- 5-Bromo-4-cyano-2-methoxyphenyl acetate (CAS 515832-53-8)
- 6,9-Diazaspiro[4.5]decan-8-one (CAS 1557667-08-9)
- TRC051384 hydrochloride (CAS 1333327-56-2)
- Sodium 5-(3-ethynylphenylamino)pyrimido[4,5-c]quinoline-8-carboxylate (CAS 1333382-30-1)
- 4-Chloro-2-methyl-L-phenylalanine (CAS 1241680-22-7)
- n-Cyclohexylbenzo[d]thiazole-6-carboxamide (CAS 794557-77-0)
- Methyl 2-Bromo-6-iodobenzoate (CAS 1261840-81-6)
- 2-Methylbut-3-en-2-amine hydrochloride (CAS 2978-61-2)
- Methylmalonyl DL-Carnitine Chloride (Mixture of Diastereomer (CAS 821794-54-1)
- 3-(Benzo[d]oxazol-2-ylthio)-6-chloro-4-hydroxy-2H-thiochromen-2-one (CAS 88331-47-9)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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