7-Chloro-1H-indole-4-carbonitrile CAS 1167056-48-5
| CAS No. | 1167056-48-5 |
| Molecular Formula | C9H5ClN2 |
| Molecular Weight | 176.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 176.60 g/mol gives 7-Chloro-1H-indole-4-carbonitrile distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
7-Chloro-1H-indole-4-carbonitrile (CAS 1167056-48-5), molecular formula C9H5ClN2 and molecular weight 176.60 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H5ClN2, 7-Chloro-1H-indole-4-carbonitrile contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 176.60 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C9H5ClN2 |
| Molecular Weight | 176.60 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 3-Chloro-1H-indole-5-carbonitrile (CAS 1034690-30-6)
- 6-Chloro-1H-indole-4-carbonitrile (CAS 1097629-20-3)
- 3-Chloro-1H-indole-6-carbonitrile (CAS 116482-52-1)
- 3-Chloro-4-(cyanomethyl)benzonitrile (CAS 1261672-27-8)
- 7-Chloro-1H-indole-2-carbonitrile (CAS 1264481-38-0)
- 5-chloro-1H-indole-2-carbonitrile (CAS 1374452-17-1)
- 4-Chloro-1H-indole-5-carbonitrile (CAS 1427409-07-1)
- 6-Chloro-3-ethynylimidazo[1,2-a]pyridine (CAS 1488423-14-8)
Recommended Standards
- 8-Chloroindolizine-1-carbonitrile (CAS 1246845-16-8)
- 3-(2-chloroethyl)-1-methylimidazolidine-2,4-dione (CAS 1152519-18-0)
- 3-(chloromethyl)-5-(2-methoxyethyl)-1,2,4-oxadiazole (CAS 1250052-81-3)
- (2E)-3-(5-chlorofuran-2-yl)prop-2-enoic acid (CAS 111252-98-3)
- Ethyl 2-amino-4-chlorothiophene-3-carboxylate (CAS 90312-14-4)
- (S)-2-((Benzylamino)methyl)-7,9-dihydro-2H-[1,4]dioxino[2,3-e]indol-8(3H)-one (CAS 189681-70-7)
- Methyl 3-hydroxy-8-methyl-8-azabicyclo[3.2.1]octane-3-carboxylate (CAS 1214031-52-3)
- Doxapram Impurity 38 (CAS CATO-C4X-197338)
- 2-(Aminomethyl)-3-(difluoromethyl)-5-iodo-4-methylpyridine (CAS 1805091-44-4)
- 4-Methoxy-2-phenethyltetrahydrofuran (CAS 88841-82-1)
- N,N-DIETHYL-2-FORMYL-6-METHOXYBENZAMIDE (CAS 70946-17-7)
- 1-[4-(4-chlorophenyl)piperazin-1-yl]ethan-1-one (CAS 150557-99-6)
- N-Boc-1,2,3,4-tetrahydroisoquinoline-7-carboxylic Acid (CAS 149353-95-7)
- TRAF6 Peptide trifluoroacetate salt (CAS 852805-92-6)
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