4-(3-Chloropropyl)-1-ethyl-1h-pyrazole CAS 1248042-36-5
| CAS No. | 1248042-36-5 |
| Molecular Formula | C8H13ClN2 |
| Molecular Weight | 172.66 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-(3-Chloropropyl)-1-ethyl-1h-pyrazole (CAS 1248042-36-5), a certified reference material (molecular formula C8H13ClN2, MW 172.66 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H13ClN2, 4-(3-Chloropropyl)-1-ethyl-1h-pyrazole contains a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 172.66 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.
As a certified reference material (CRM), 4-(3-Chloropropyl)-1-ethyl-1h-pyrazole 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 | C8H13ClN2 |
| Molecular Weight | 172.66 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloropropyl Standards
- 5-(3-Chloropropyl)-1,3-dimethyl-1h-pyrazole (CAS 1488098-80-1)
- 1-(3-Chloropropyl)-3,5-dimethyl-1h-pyrazole (CAS 81930-34-9)
- 1-(1-Chloropropyl)-4-fluorobenzene (CAS 1092300-84-9)
- 1-(3-Chloropropyl)-2-fluorobenzene (CAS 110406-96-7)
- 2-(3-Chloropropyl)bicyclo[2.2.1]heptane (CAS 1559947-49-7)
- 1-(2-Chloropropyl)-4-fluorobenzene (CAS 7387-75-9)
- 1-(3-Chloropropyl)-3-fluorobenzene (CAS 84648-43-1)
- 1-(3-Chloropropyl)-4-fluorobenzene (CAS 64747-82-6)
Recommended Standards
- 1-(Sec-butyl)-4-chloro-3-methyl-1h-pyrazole (CAS 1245808-61-0)
- 5-(Chloromethyl)-3-isopropyl-1-methyl-1H-pyrazole (CAS 1260658-78-3)
- 4-Chloro-1-isobutyl-3-methyl-1h-pyrazole (CAS 1245808-35-8)
- 2-(3-Chloro-2-methylpropyl)-1-methyl-1h-imidazole (CAS 1344065-18-4)
- O-((2R,3R,4R,5R)-5-((bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-4-hydroxy-2-(6-isobutyramido-9H-purin-9-yl)tetrahydrofuran-3-yl) thiomorpholine-4-carbothioate 1,1-dioxide (CAS 1219089-85-6)
- 5-Bromobenzofuran-7-ol (CAS 1781485-15-1)
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- Estradiol Impurity 41 (CAS 4999-78-4)
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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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