3-Chloro-1H-pyrazolo[4,3-c]pyridine-7-carbonitrile CAS 93546-19-1
| CAS No. | 93546-19-1 |
| Molecular Formula | C7H3ClN4 |
| Molecular Weight | 178.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Chloro-1H-pyrazolo[4,3-c]pyridine-7-carbonitrile (CAS 93546-19-1) is a high-purity analytical reference standard with the molecular formula C7H3ClN4 and a molecular weight of 178.58 g/mol.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 3-Chloro-1H-pyrazolo[4,3-c]pyridine-7-carbonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 178.58 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.
As a certified reference material (CRM), 3-Chloro-1H-pyrazolo[4,3-c]pyridine-7-carbonitrile 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 | C7H3ClN4 |
| Molecular Weight | 178.58 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.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 6-Chloro-1,3-benzoxazole-2-carbonitrile (CAS 1172606-59-5)
- 4-Chloro-5H-pyrrolo[3,2-d]pyrimidine-7-carbonitrile (CAS 1311275-24-7)
- 2-Chloro-5H-pyrrolo[3,2-d]pyrimidine-7-carbonitrile (CAS 1824287-31-1)
- 2-Chloro-5H-pyrrolo[3,2-d]pyrimidine-6-carbonitrile (CAS 1935335-48-0)
- 4-Chloro-7H-pyrrolo[2,3-d]pyrimidine-5-carbonitrile (CAS 24391-41-1)
- 5-Chloro-[1,2,4]triazolo[4,3-a]pyridine-3-carbonitrile (CAS 66999-73-3)
- 5-chloro-2-isocyanatobenzonitrile (CAS 64411-72-9)
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Recommended Standards
- 2-Amino-6-chloropyridine-3,5-dicarbonitrile (CAS 51768-01-5)
- 4-Chlorofuro[3,2-c]pyridine-2-carbonitrile (CAS 220992-52-9)
- 4-Chloropyrrolo[2,1-f][1,2,4]triazine-2-carbonitrile (CAS 2091665-05-1)
- 8-Chloroimidazo[1,5-a]pyrazine-3-carbonitrile (CAS 1500501-60-9)
- Ethyl 2-fluoro-3-methylbut-2-enoate (CAS 685-89-2)
- 3-(Difluoromethyl)naphthalen-2-amine (CAS 1261687-22-2)
- 1-(4-methyl-3-nitrophenyl)ethan-1-ol (CAS 35781-36-3)
- 4-Ethynyl-1-propyldecahydroquinolin-4-ol hydrochloride (CAS 62233-62-9)
- 4-Bromo-2-hydroxylindan (CAS 125141-73-3)
- 2-(2-Chlorophenyl)-2-phenylethane-1-sulfonylchloride (CAS 885950-96-9)
- N,5-Diethyl-1,3,4-thiadiazol-2-amine (CAS 857748-78-8)
- 2,5-Dichloro-N-(2-(ethylamino)ethyl)benzenesulfonamide hydrochloride (CAS 1591636-22-4)
- 1-(4-Ethoxyphenyl)-5-thioxopyrrolidin-2-one (CAS 100192-41-4)
- Insulin Degludec Impurity 13 (CAS CATO-C4X-215713)
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