1-(3-Chlorophenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid CAS 1017666-29-3
| CAS No. | 1017666-29-3 |
| Molecular Formula | C14H10ClN3O2 |
| Molecular Weight | 287.70 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 1-(3-Chlorophenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid (C14H10ClN3O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 287.70 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies 1-(3-Chlorophenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid (CAS 1017666-29-3), a certified reference material (molecular formula C14H10ClN3O2, MW 287.70 g/mol) for analytical method development and quality control.
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-(3-Chlorophenyl)-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid 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 | C14H10ClN3O2 |
| Molecular Weight | 287.70 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
- 3-(4-Chlorophenyl)-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 1030421-13-6)
- (2E)-3-(2-Chlorophenyl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 107943-21-5)
- 1-(4-Chlorophenyl)-5-(1h-pyrrol-1-yl)-1h-pyrazole-4-carboxylic acid (CAS 116834-09-4)
- 3-(3-Chlorophenyl)-5-(2-hydrazinylpyridin-3-yl)-1,2,4-oxadiazole (CAS 1232788-06-5)
- 4-(3-Chlorophenyl)-1-methyl-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid (CAS 1354704-59-8)
- 4-(4-Chlorophenyl)-1-methyl-1H-pyrazolo[3,4-b]pyridine-3-carboxylic acid (CAS 1354706-20-9)
- (2E)-3-(3-Chlorophenyl)-1-(3-nitrophenyl)prop-2-en-1-one (CAS 1415313-18-6)
- 1-[(4-Chlorophenyl)methyl]-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione (CAS 16512-78-0)
Recommended Standards
- Methyl 4-(4-chloro-7H-pyrrolo[2,3-d]pyrimidin-6-yl)benzoate (CAS 1011717-00-2)
- (2E)-2-[(E)-2-Chlorobenzoyl]-3-[(5-methyl-1,2-oxazol-3-yl)amino]prop-2-enenitrile (CAS 1025301-03-4)
- Methyl 3-chloro-5-phenylpyrazolo[1,5-a]pyrimidine-7-carboxylate (CAS 1011354-51-0)
- Isavuconazole Impurity 109 (CAS CATO-C4X-1236109)
- 5-Methyl-3-(o-tolyl)imidazolidine-2,4-dione (CAS 51027-24-8)
- 6-methoxy-3,5-dimethylpyridine-2-carbaldehyde (CAS 123506-71-8)
- 5-(Prop-1-en-2-yl)picolinic acid (CAS 2173991-57-4)
- [2-(propan-2-yloxy)phenyl]methanol (CAS 82657-68-9)
- 2-((1H-Benzo[d][1,2,3]triazol-1-yl)methyl)-1,2,3,4-tetrahydroisoquinoline (CAS 147676-25-3)
- Tert-butyl (3-(thietan-3-ylamino)benzyl)carbamate (CAS 1994182-03-4)
- Oxacillin Impurity 52 (CAS CATO-C4X-232152)
- Palbociclib Impurity 200 (CAS 2204368-69-2)
- 2-Oxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-6-carboxylic acid (CAS 1260382-42-0)
- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
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