1-[4-(3-Chlorophenoxy)butyl]-4-nitro-1h-pyrazole CAS 1240569-68-9
| CAS No. | 1240569-68-9 |
| Molecular Formula | C13H14ClN3O3 |
| Molecular Weight | 295.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 295.72 g/mol gives 1-[4-(3-Chlorophenoxy)butyl]-4-nitro-1h-pyrazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-[4-(3-Chlorophenoxy)butyl]-4-nitro-1h-pyrazole (CAS 1240569-68-9), molecular formula C13H14ClN3O3 and molecular weight 295.72 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1-[4-(3-Chlorophenoxy)butyl]-4-nitro-1h-pyrazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 295.72 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 1-[4-(3-Chlorophenoxy)butyl]-4-nitro-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 | C13H14ClN3O3 |
| Molecular Weight | 295.72 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenoxy Standards
- 1-[4-(2-Chlorophenoxy)butyl]-4-nitro-1h-pyrazole (CAS 1240567-93-4)
- 1-[4-(3-Chlorophenoxy)butyl]-3-nitro-1h-pyrazole (CAS 1240579-24-1)
- 6-(2-Chlorophenoxy)-5-nitroimidazo[2,1-b]thiazole (CAS 339008-07-0)
- 6-(3-Chlorophenoxy)-5-nitroimidazo[2,1-b][1,3]thiazole (CAS 339008-09-2)
- 6-(4-Chlorophenoxy)-5-nitroimidazo[2,1-b][1,3]thiazole (CAS 339008-06-9)
- 4-(4-Chlorophenoxy)pyrrolo[1,2-a]quinoxaline (CAS 338401-28-8)
- 2-(2-Chlorophenoxy)-N-(cyclopentylcarbamoyl)acetamide (CAS 869354-55-2)
- 5-(3-((2-Chlorophenoxy)methyl)-1,2,4-oxadiazol-5-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 1215453-59-0)
Recommended Standards
- Ethyl 4-chloro-6,8-dimethoxyquinoline-3-carboxylate (CAS 1016825-43-6)
- Ethyl 5-amino-1-(3-chloro-4-methoxyphenyl)-1H-pyrazole-4-carboxylate (CAS 1267970-00-2)
- 1-((2-Chloro-5-methylphenoxy)methyl)-3,5-dimethyl-4-nitro-1h-pyrazole (CAS 1001519-04-5)
- Methyl 2-((5-chloro-8-methoxy-2-methylquinolin-4-yl)oxy)acetate (CAS 1315343-50-0)
- (2E)-2-{4-[2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)ethyl]-1,3-thiazol-2-yl}-3-(4-{[3-(trifluoromethyl)phenyl]methoxy}phenyl)prop-2-enenitrile (CAS 866051-10-7)
- 1-(Pyridin-2-ylmethyl)cyclopropan-1-amine dihydrochloride (CAS 2251053-23-1)
- 2-(2-Methoxyethoxy)phenol (CAS 33130-23-3)
- 2-[2-(3,5-dimethylphenoxy)acetyl]-1,2,3,4-tetrahydroisoquinoline-3-carboxylic acid (CAS 1008369-07-0)
- 5-METHOXYINDOLINE HCL (CAS 4770-39-2)
- (S)-2-Amino-3-(1-formyl-1H-indol-3-yl)propanoic acid (CAS 74257-18-4)
- 1-(5-chloro-1H-pyrrol-2-yl)ethanone (CAS 80311-19-9)
- 1-[4-(Benzyloxy)phenyl]-2-[(N-benzyl-N-methyl)amino]-1-propanone (CAS 1797982-43-4)
- Vildagliptin Impurity 40 (CAS 19943-27-2)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
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