4-(2-Chloro-4-methoxyphenyl)-5-methyl-1H-pyrazol-3-amine CAS 817636-89-8
| CAS No. | 817636-89-8 |
| Molecular Formula | C11H12ClN3O |
| Molecular Weight | 237.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(2-Chloro-4-methoxyphenyl)-5-methyl-1H-pyrazol-3-amine (CAS 817636-89-8) is a high-purity analytical reference standard with the molecular formula C11H12ClN3O and a molecular weight of 237.69 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 4-(2-Chloro-4-methoxyphenyl)-5-methyl-1H-pyrazol-3-amine is typically off-white to pale yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 237.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 4-(2-Chloro-4-methoxyphenyl)-5-methyl-1H-pyrazol-3-amine 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 | C11H12ClN3O |
| Molecular Weight | 237.69 g/mol |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 5-Chloro-2-((1-methyl-1H-pyrazol-4-yl)methoxy)aniline (CAS 1006962-56-6)
- 5-Chloro-2-(piperidin-4-yl)oxazolo[5,4-b]pyridine (CAS 1023817-55-1)
- 4-chloro-2-[3-(propan-2-yl)-1,2,4-oxadiazol-5-yl]aniline (CAS 1040079-81-9)
- 1-(2-(5-Chloro-1H-benzo[d]imidazol-2-yl)ethyl)guanidine (CAS 1060803-55-5)
- 4-Chloro-3-(3-isopropyl-1,2,4-oxadiazol-5-yl)aniline (CAS 1178329-57-1)
- 2-[2-(4-chloro-1H-pyrazol-1-yl)ethoxy]aniline (CAS 1182977-83-8)
- 4-Chloro-3-(3-propyl-1,2,4-oxadiazol-5-yl)aniline (CAS 1184200-57-4)
- 8-Chloro-3-methyl-1-(tetrahydrofuran-3-yl)imidazo[1,5-a]pyrazine (CAS 1184919-93-4)
Recommended Standards
- 4-(2-Aminoethyl)-5-(3-chlorophenyl)-1H-pyrazol-3(2H)-one (CAS 881040-96-6)
- 4-(4-Chlorophenyl)-5-(methoxymethyl)-1H-pyrazol-3-amine (CAS 895010-44-3)
- 3-(4-Chloro-2-methylphenyl)-5-ethoxy-1H-1,2,4-triazole (CAS 62036-11-7)
- 4-(5-Chloro-1H-benzo[d]imidazol-2-yl)morpholine (CAS 333771-44-1)
- [1-(2-methoxyethyl)cyclohexyl]methanamine (CAS 1489855-51-7)
- (1r,3r)-3-(3-Bromo-4-fluorophenyl)cyclobutan-1-amine (CAS 1807936-49-7)
- MCH (salmon) (CAS 87218-84-6)
- [2-[2-(Diphenylphosphino)phenoxy]phenyl]diphenylphosphine Oxide (CAS 871130-32-4)
- N-(3,5-dichlorophenyl)-2-(4-methoxybenzyl)thiazole-4-carboxamide (CAS 478030-32-9)
- 4-Fluoro-1H-indazole-3-carbaldehyde (CAS 518987-93-4)
- (S)-1-(3-bromo-2-methoxyphenyl)-2-methoxyethan-1-amine (CAS 1270125-97-7)
- 6-(1H-Pyrazol-5-yl)-2H,3H,5H-[1,3]thiazolo[3,2-a]pyrimidin-5-one (CAS 318949-50-7)
- 5-Methyl-1-((tetrahydro-2H-pyran-2-yl)methyl)-1H-pyrazol-3-amine (CAS 1690435-27-8)
- Peptide Impurity 70 TFA Salt (CAS CATO-CPTD788570)
Why CATO?
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