5-Chloro-2,3,3-trimethyl-3H-indole CAS 25981-83-3
| CAS No. | 25981-83-3 |
| Molecular Formula | C11H12ClN |
| Molecular Weight | 193.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 5-Chloro-2,3,3-trimethyl-3H-indole is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 193.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
5-Chloro-2,3,3-trimethyl-3H-indole (CAS 25981-83-3), molecular formula C11H12ClN and molecular weight 193.67 g/mol, is a CATO reference standard with documented purity and traceability.
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-Chloro-2,3,3-trimethyl-3H-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.
Physical & Chemical Properties
| Molecular Formula | C11H12ClN |
| Molecular Weight | 193.67 g/mol |
| 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 |
| 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.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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- 2-Chloro-n-[3-(propan-2-yloxy)propyl]acetamide (CAS 10263-67-9)
- 2-Chloro-5-(cyclohex-2-en-1-yl)pyridine (CAS 1187163-34-3)
- 2-Chloro-3,5,7-trimethyl-1H-indole (CAS 1352497-89-2)
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Recommended Standards
- 5-Chloro-1-propyl-1H-indole (CAS 820210-24-0)
- 5-Chloro-2-ethyl-3-methyl-1H-indole (CAS 563539-28-6)
- 5-Chloro-1-isopropyl-1H-indole (CAS 820210-26-2)
- 5-Chloro-2-isopropyl-1H-indole (CAS 573716-61-7)
- 2,2,4-Trimethylheptan-1-ol (CAS 1485965-47-6)
- 6-Bromo-3-chloro-5-fluoropyridine-2-carbonitrile (CAS 1185307-77-0)
- Dimethyl 2-(5-chloropyrimidin-4-yl)propanedioate (CAS 809276-87-7)
- 2,2,2-Trifluoro-1-[4-(trifluoromethyl)-3-indolyl]ethanone (CAS 1448890-70-7)
- 4-Oxo-4-(3-phenyl-1H-pyrazol-1-yl)butyl acetate (CAS 917761-74-1)
- 4-Methylumbelliferyl butyrate (CAS 17695-46-4)
- 4-(4-(4-Methylpiperazin-1-yl)-3-nitrophenyl)phthalazin-1-ol (CAS 797766-21-3)
- 1-(2-Bromo-5-methoxypyridin-4-yl)ethanone (CAS 1279816-18-0)
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- DAPK Substrate Peptide (CAS 386769-53-5)
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