Ethyl 4-chloro-3-ethyl-1-phenyl-1H-indazole-5-carboxylate CAS 887587-01-1
| CAS No. | 887587-01-1 |
| Molecular Formula | C18H17ClN2O2 |
| Molecular Weight | 328.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 328.79 g/mol gives Ethyl 4-chloro-3-ethyl-1-phenyl-1H-indazole-5-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl 4-chloro-3-ethyl-1-phenyl-1H-indazole-5-carboxylate (CAS 887587-01-1), molecular formula C18H17ClN2O2 and molecular weight 328.79 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl 4-chloro-3-ethyl-1-phenyl-1H-indazole-5-carboxylate (C18H17ClN2O2) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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.
CATO manufactures Ethyl 4-chloro-3-ethyl-1-phenyl-1H-indazole-5-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H17ClN2O2 |
| Molecular Weight | 328.79 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 1'-Benzyl-6-chloro-3H-spiro[furo[3,4-c]pyridine-1,4'-piperidin]-3-one (CAS 1017598-71-8)
- 2-CHloro-5-(N,N-di-boc-amino)pyridine (CAS 1044148-99-3)
- Ethyl 4-(2-chloro-6-fluorophenyl)-6-methyl-2-thioxo-1,2,3,4-tetrahydropyrimidine-5-carboxylate (CAS 134074-31-0)
- 2-Chloro-1-[5-(4-methoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl]ethan-1-one (CAS 380196-84-9)
- 2-Chloro-N-((5-oxo-1-phenylpyrrolidin-3-yl)methyl)benzamide (CAS 955219-08-6)
- 3-(3-Chloro-4-methylphenyl)-2-methyl-2,3,5,6-tetrahydro-4H-2,6-methanobenzo[g][1,3,5]oxadiazocin-4-one (CAS 899986-42-6)
- 5-((2-Chloro-5-nitrophenyl)methylene)-3-ethyl-2-thioxo-1,3-thiazolidin-4-one (CAS 299904-13-5)
- 6-Chloro-4-(trifluoromethyl)-2-((2-(trimethylsilyl)ethoxy)methyl)pyridazin-3(2H)-one (CAS 2869830-77-1)
Recommended Standards
- Ethyl 1-(4-chlorophenyl)-5-phenyl-4,5-dihydro-1H-pyrazole-3-carboxylate (CAS 861151-22-6)
- Ethyl 7-(4-chlorophenyl)-2,4-dimethylpyrrolo[1,2-a]pyrimidine-8-carboxylate (CAS 338406-13-6)
- N-(1,1-Dioxidotetrahydrothiophen-3-yl)-2-(4-methyl-4-(naphthalen-1-yl)-2,5-dioxoimidazolidin-1-yl)acetamide (CAS 956780-46-4)
- tert-Butyl (tert-butoxycarbonyl)(2-chloropyridin-4-yl)carbamate (CAS 220270-49-5)
- 4-Chloro-5,6-dimethyl-2-[(phenylsulfanyl)methyl]thieno[2,3-d]pyrimidine (CAS 793727-54-5)
- (R)-1-([1,2,4]triazolo[4,3-a]pyridin-3-yl)ethan-1-amine (CAS 1217810-82-6)
- (E)-N,N-Dimethyl-N'-{7-[1-(3-methylphenoxy)ethyl]-[1,2,4]triazolo[1,5-a]pyrimidin-2-yl}methanimidamide (CAS 477865-39-7)
- (3-Fluoro-5-methylfuran-2-yl)(2-methoxyphenyl)methanol (CAS 1282806-12-5)
- 9-Chloro-9-(4-(hexyloxy)phenyl)-10-methyl-9,10-dihydroacridine (CAS 509-94-4)
- 6-[N,N-Di(2-hydroxybenzyl)amino]-2-[(3-hydroxypropyl)amino]-9-isopropylpurine (CAS 1076200-04-8)
- 4-(Benzyloxy)-3-ethoxybenzaldehyde (CAS 60186-33-6)
- P-Terphenyl (CAS 92-94-4)
- 3-Cyano-5-hydroxy-N-methylbenzamide (CAS 1243409-11-1)
- Semaglutide impurity 30 (CAS CATO-C4X-222630)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com