1-(4-Chlorophenyl)-3-(3-nitrophenyl)-1H-pyrazole-4-carbaldehyde CAS 618098-98-9
| CAS No. | 618098-98-9 |
| Molecular Formula | C16H10ClN3O3 |
| Molecular Weight | 327.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(4-Chlorophenyl)-3-(3-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-98-9) is a high-purity analytical reference standard with the molecular formula C16H10ClN3O3 and a molecular weight of 327.72 g/mol.
Based on its molecular formula C16H10ClN3O3, 1-(4-Chlorophenyl)-3-(3-nitrophenyl)-1H-pyrazole-4-carbaldehyde contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 327.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 1-(4-Chlorophenyl)-3-(3-nitrophenyl)-1H-pyrazole-4-carbaldehyde 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 | C16H10ClN3O3 |
| Molecular Weight | 327.72 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 |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-1-(4-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 1187969-22-7)
- 1-(3-Chlorophenyl)-3-(3-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 618101-71-6)
- 1-(3-Chlorophenyl)-3-(4-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 618101-72-7)
- 1-(4-Chlorophenyl)-3-(4-nitrophenyl)-1H-pyrazole-4-carbaldehyde (CAS 618098-99-0)
- 1-(4-Chlorophenyl)-3-{[4-(trifluoromethyl)phenyl]amino}propan-1-one (CAS 477334-15-9)
- N'-[(4-Chlorophenyl)methyl]-N-[3-(trifluoromethyl)phenyl]guanidine (CAS 254434-90-7)
- N-(4-chlorophenyl)-2,2-difluoro-2-(4-methoxyphenoxy)acetamide (CAS 303150-79-0)
- 3-[(2-Chlorophenyl)methyl]-8-fluoro-3H,4H,5H-pyrimido[5,4-b]indol-4-one (CAS 1031557-91-1)
Recommended Standards
- 1,3-Dimethyl 2-(2-chloro-6-nitrophenyl)-2-(prop-2-en-1-yl)propanedioate (CAS 900019-63-8)
- 1-((4-Chloro-2-nitrophenyl)diazenyl)naphthalen-2-ol (CAS 6410-13-5)
- 2-(4-(7-Chloro-4-nitrobenzo[c][1,2,5]oxadiazol-5-yl)piperazin-1-yl)ethan-1-ol (CAS 842966-44-3)
- Diethyl Decarboxylated Compound (CAS 177838-59-4)
- Triguanidine phosphate (CAS 38848-02-1)
- Hexadecanoic acid, 2-sulfo-, sodium salt (CAS 5896-55-9)
- CME-carbodiimide (CAS 2491-17-0)
- 2,2-Difluoro-6-azabicyclo[3.2.1]Octane (CAS 2138054-81-4)
- 3-((2-Fluorobenzyl)oxy)piperidine hydrochloride (CAS 1220033-06-6)
- N-[4-(2,4-Dichlorophenoxy)butyl]-4-(3-phenylpropoxy)aniline (CAS 1040686-69-8)
- 4-Chloro-6,7-dimethoxy-2-methyl-3,4-dihydroquinazoline (CAS 1001755-78-7)
- 6-Chloro-7-methyl-2-(trifluoromethyl)-7H-purine (CAS 1095281-91-6)
- 1-(5-Chloro-2-methylphenyl)hexan-1-one (CAS 1352218-98-4)
- [Plus-β-Ala28]-Semaglutide (CAS CATO-C4X-2226221)
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