4-Chloro-6-methyl-5-azaindole CAS 178268-92-3
| CAS No. | 178268-92-3 |
| Molecular Formula | C8H7ClN2 |
| Molecular Weight | 166.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-6-methyl-5-azaindole (CAS 178268-92-3) is a high-purity analytical reference standard with the molecular formula C8H7ClN2 and a molecular weight of 166.61 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 4-Chloro-6-methyl-5-azaindole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 166.61 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H7ClN2 |
| Molecular Weight | 166.61 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 DMSO, DMF, methanol |
| 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.) | 2007 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 5-Chloro-6-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-18-0)
- 6-Chloro-5-methyl-1H-indazole (CAS 1000341-02-5)
- 3-Chloro-7-methyl-1H-pyrrolo[3,2-c]pyridine (CAS 1000341-46-7)
- 5-Chloro-6-methyl-2H-indazole (CAS 1000343-64-5)
- 2-(2-Chloro-6-methylpyridin-3-yl)acetonitrile (CAS 1000514-91-9)
- 2-(6-Chloro-2-methylpyridin-3-yl)acetonitrile (CAS 1000529-85-0)
- 6-Chloro-2,4-dimethylpyridine-3-carbonitrile (CAS 101251-72-3)
- 2-Chloro-6-Methylimidazo[1,2-a]pyridine (CAS 1019019-96-5)
Recommended Standards
- 4-Chloro-6-methyl-7-azaindole (CAS 171879-99-5)
- 2-(4-Amino-2-chlorophenyl)acetonitrile (CAS 180150-18-9)
- 5-(Chloromethyl)imidazo[1,2-a]pyridine (CAS 167884-16-4)
- 2-Chloro-3-methylimidazo[1,2-a]pyridine (CAS 1802819-48-2)
- (S)-Rasagiline Mesylate (CAS 202464-88-8)
- 5-(Pyrrolidin-2-yl)-1H-1,2,4-triazol-3-ol hydrochloride (CAS 1269062-24-9)
- Α-[6-hydroxy-6-oxido-1,12-dioxo-9-[(1-oxooctadecyl)oxy]-5,7,11-trioxa-2-aza-6-phosphanonacos-1-yl]-ω-methoxy-Poly(oxy-1,2-ethanediyl) sodium salt (CAS 459428-35-4)
- 2-(4,4-Dimethyl-2,5-dioxoimidazolidin-1-yl)acetonitrile (CAS 1000932-38-6)
- 1-((1-Phenylcyclopropyl)methyl)piperidin-3-amine (CAS 1713649-43-4)
- 4-Pyridinol,3-iodo-; 3-Iodo-4-hydroxypyridine;3-Iodopyridin-4-ol; 89282-03-1 BCP28490 (CAS 89282-03-1)
- 3-Phenyl-1-(3-(thiazol-2-yloxy)azetidin-1-yl)prop-2-en-1-one (CAS 1798422-12-4)
- 6,7-Dimethoxy-1-(4-nitrophenyl)isochromane (CAS 92774-40-8)
- 2-(Difluoromethyl)-3-fluoro-4-nitropyridine-5-acetonitrile (CAS 1805536-38-2)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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