4-Chloro-7-azaindole CAS 55052-28-3
| CAS No. | 55052-28-3 |
| Molecular Formula | C7H5ClN2 |
| Molecular Weight | 152.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Chloro-7-azaindole 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.
4-Chloro-7-azaindole (CAS 55052-28-3), molecular formula C7H5ClN2 and molecular weight 152.58 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 4-Chloro-7-azaindole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 152.58 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H5ClN2 |
| Molecular Weight | 152.58 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.) | 1972 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 3-Chloro-1H-pyrrolo[3,2-c]pyridine (CAS 1000342-65-3)
- 2-(2-Chloro-4-pyridyl)acetonitrile (CAS 1000565-45-6)
- 2-(2-Chloro-3-pyridyl)acetonitrile (CAS 101012-32-2)
- 4-Chloro-2-cyano-6-methylpyridine, 97% (CAS 104711-65-1)
- Methyl 4-chloro-3-hydroxybutanoate (CAS 10488-68-3)
- 5-Chloro-2-ethynylpyridin-3-amine (CAS 1150617-82-5)
- 2-Chloro-1H-pyrrolo[2,3-b]pyridine (CAS 1174936-85-6)
- 4-Chloro-6-azaindole (CAS 1188313-15-6)
Recommended Standards
- 4-Chloro-6-methylnicotinonitrile (CAS 38875-76-2)
- 4-Chlorobenzofuran (CAS 257864-14-5)
- 4-Amino-2-chlorobenzonitrile (CAS 20925-27-3)
- 5-Amino-2-chlorobenzonitrile (CAS 35747-58-1)
- 2-(2-Morpholinopyridin-3-yl)piperidine-1-carbaldehyde (CAS 1352519-09-5)
- tert-Butyl 2-((2-amino-N-methylacetamido)methyl)piperidine-1-carboxylate (CAS 1353961-67-7)
- 4-(3-Methoxyphenyl)-2,3-dihydro-1H-benzo[b][1,4]diazepine (CAS 904815-64-1)
- 1-tert-butyl 2-methyl (2R,4R)-4-(hydroxymethyl)pyrrolidine-1,2-dicarboxylate (CAS 1638744-99-6)
- 4-(2-Methoxyacetyl)piperazin-2-one (CAS 1250701-99-5)
- Vitamin A EP Impurity A(Kitol) (Mixture of Diastereomers) (CAS 22555-09-5)
- 53234-55-2 5-Cyano-2-pyridinecarboxylic acid MFCD09152775 5-Cyanopicolinic acid (CAS 53234-55-2)
- N-[2-(4-Amino-pyrazol-1-yl)-ethyl]-2-dimethylamino-acetamide dihydrochloride (CAS 1361112-70-0)
- Plerixafor impurity 38 (CAS CATO-C4X-113338)
- Semaglutide impurity 62 (CAS CATO-C4X-222662)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com