(6-Chloro-1-methyl-1H-indol-2-yl)boronic acid CAS 957066-11-4
| CAS No. | 957066-11-4 |
| Molecular Formula | C9H9BClNO2 |
| Molecular Weight | 209.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 209.44 g/mol gives (6-Chloro-1-methyl-1H-indol-2-yl)boronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
(6-Chloro-1-methyl-1H-indol-2-yl)boronic acid (CAS 957066-11-4), molecular formula C9H9BClNO2 and molecular weight 209.44 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, (6-Chloro-1-methyl-1H-indol-2-yl)boronic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 209.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), (6-Chloro-1-methyl-1H-indol-2-yl)boronic 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 | C9H9BClNO2 |
| Molecular Weight | 209.44 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 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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
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Recommended Standards
- 1-Bromo-3-chloro-2-fluorobenzene (CAS 144584-65-6)
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- 1-Bromo-3-chloro-5-fluorobenzene (CAS 33863-76-2)
- 3-(5-(Benzyloxy)-1H-indol-3-yl)-3-oxopropanenitrile (CAS 1020722-11-5)
- (r)-4-Chloro-2-(1-hydroxyethyl)phenol (CAS 1344958-56-0)
- 1-(Allyloxy)-4-hydroxyanthracene-9,10-dione (CAS 79207-99-1)
- 2-(1-Methoxynaphthalen-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 627526-46-9)
- N-Cyclopropylammelide (CAS 92510-61-7)
- Protopine (CAS 130-86-9)
- 3-(N-phenylsulfamoyl)benzoic acid (CAS 1576-45-0)
- 2-Methyl-3-oxo-2-azatricyclo[6.3.1.0,4,12]dodeca-1(11),4(12),5,7,9-pentaene-9-sulfonyl chloride (CAS 220956-42-3)
- 5-Bromo-2-(bromomethyl)benzaldehyde (CAS 1261669-65-1)
- Semaglutide Impurity 189 (CAS CATO-C4X-2226189)
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