3-Chloro-1-methyl-1H-indole CAS 124589-41-9
| CAS No. | 124589-41-9 |
| Molecular Formula | C9H8ClN |
| Molecular Weight | 165.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Chloro-1-methyl-1H-indole 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.
3-Chloro-1-methyl-1H-indole (CAS 124589-41-9), molecular formula C9H8ClN and molecular weight 165.62 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 3-Chloro-1-methyl-1H-indole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 165.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C9H8ClN |
| Molecular Weight | 165.62 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 2-(2-Chloro-4-methylphenyl)acetonitrile (CAS 1000554-63-1)
- 4-Chloro-3,5-dimethylbenzonitrile (CAS 1097629-24-7)
- 5-Chloro-1-methyl-1H-indole (CAS 112398-75-1)
- 2-chloro-5-methoxy-pyridin-4-ol (CAS 1196145-74-0)
- 2-Chloro-N-(3-hydroxypropyl)propanamide (CAS 1211481-04-7)
- 2-Chloro-4,5-dimethylbenzonitrile (CAS 1242339-03-2)
- 5-Chloro-2-methoxypyridin-3-ol (CAS 1261365-86-9)
- 2-Chloro-N-(1-methoxypropan-2-yl)acetamide (CAS 127727-18-8)
Recommended Standards
- 3-(3-Chlorophenyl)prop-2-yn-1-amine (CAS 1248691-80-6)
- 2-(Chloromethyl)-1H-indole (CAS 121384-27-8)
- 4-(2-Chloroethyl)benzonitrile (CAS 1260778-72-0)
- 2-(Chloromethyl)-6-methylbenzonitrile (CAS 1261780-69-1)
- 3-(2,4,6-Trimethylbenzyl)piperazin-2-one (CAS 1246548-33-3)
- Chlorpheniramine-d6 Maleate Salt (CAS 1219806-45-7)
- Benzyl phenyl hydrogen phosphate (CAS 50579-30-1)
- 4-(2-chlorophenyl)piperidin-4-ol hydrochloride (CAS 860228-33-7)
- 1-(2-Amino-3,4,5-trichlorophenyl)naphthalen-2-ol (CAS 1424386-60-6)
- 2-(Benzo[d][1,3]dioxol-5-yl)oxazole-5-carbaldehyde (CAS 1126633-88-2)
- 2-(5-Cyano-2-hydroxyphenyl)acetic acid (CAS 147044-60-8)
- methyl 12-((2S,4R)-2-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxypyrrolidin-1-yl)-12-oxododecanoate (CAS 1159408-69-1)
- 3,5-Di([1,1'-biphenyl]-4-yl)-1,2,4-oxadiazole (CAS 55667-08-8)
- Gly-Neuroendocrine Regulatory Peptide-3 (human, mouse, rat) trifluoroacetate salt (CAS 1815618-19-9)
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