4-(2-Chlorophenyl)-1,3-dimethyl-1h-pyrazol-5-amine CAS 3654-23-7
| CAS No. | 3654-23-7 |
| Molecular Formula | C11H12ClN3 |
| Molecular Weight | 221.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
4-(2-Chlorophenyl)-1,3-dimethyl-1h-pyrazol-5-amine (CAS 3654-23-7), molecular formula C11H12ClN3 and molecular weight 221.69 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-(2-Chlorophenyl)-1,3-dimethyl-1h-pyrazol-5-amine (C11H12ClN3) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C11H12ClN3 |
| Molecular Weight | 221.69 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.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorophenyl Standards
- 2-(3-(4-Chlorophenyl)-1H-pyrazol-1-yl)ethan-1-amine (CAS 1017785-68-0)
- 1-(1-(4-Chlorophenyl)ethyl)-1H-pyrazol-5-amine (CAS 1052547-97-3)
- 3-(4-Chlorophenyl)-4-ethyl-1h-pyrazol-5-amine (CAS 1141405-11-9)
- (4-Chlorophenyl)(1-methyl-1h-pyrazol-4-yl)methanamine (CAS 1152554-94-3)
- 3-(3-Chlorophenyl)-1,4-dimethyl-1h-pyrazol-5-amine (CAS 1152653-39-8)
- 4-(4-Chlorophenyl)-1,3-dimethyl-1h-pyrazol-5-amine (CAS 1152653-84-3)
- 3-(4-Chlorophenyl)-1,4-dimethyl-1h-pyrazol-5-amine (CAS 1152663-76-7)
- 3-(2-Chlorophenyl)-1,4-dimethyl-1h-pyrazol-5-amine (CAS 1152663-85-8)
Recommended Standards
- 3-Chloro-n-(1h-imidazol-2-ylmethyl)-2-methylaniline (CAS 913713-83-4)
- 4-(3-Chlorophenyl)-3-ethyl-1h-pyrazol-5-amine (CAS 955584-89-1)
- 3-Chloro-4-(3,5-dimethyl-1h-pyrazol-1-yl)aniline (CAS 50964-19-7)
- 4-(4-Chloro-3,5-dimethyl-1h-pyrazol-1-yl)aniline (CAS 943750-26-3)
- 2-(4-(Trifluoromethoxy)phenoxy)ethan-1-amine (CAS 189876-48-0)
- 5-Ethoxy-1-pivaloylpyrrolidin-2-one (CAS 131684-96-3)
- 5-Bromo-2-fluoro-4-methoxybenzonitrile (CAS 1374574-64-7)
- 1-(4-Amino-2,5-dimethyl-phenyl)-acetic acid (CAS 908566-68-7)
- 8-(Chloromethyl)-3,7-dimethyl-3,7-dihydro-1h-purine-2,6-dione (CAS 4921-56-6)
- 2H-Pyrazolo[3,4-b]quinoxalin-3-amine (CAS 56984-56-6)
- 552-22-7 A51HJM3XSU Thymol iodide Thymol iodide [NF] 5,5'-Diisopropyl-2,2'-dimethylbiphenyl-4,4'-diyl dihypoiodite Thymol iodide (8CI) Hypoiodous acid, I,I'-(2,2'-dimethyl-5,5'-bis(1-methylethyl)(1,1'-biphenyl)-4,4'-diyl) ester Hypoiodous acid, 2,2'-dimethyl-5,5'-bis(1-methylethyl)(1,1'-biphenyl)-4,4'-diyl ester Annidalin Aristol 4,4'-Bis(iodooxy)-2,2'-dimethyl-5,5'-bis(1-methylethyl-1,1'-biphenyl Bithymol diiodide Diiododithymol Dithymol diiodide EINECS 209-007-5 HSDB 867 Iodistol Iodohydromol Iodosol Iodothymol Iodothymol (VAN) Iosol Iothymol Lothymol NSC 2222 Thymiode Thymiodol Thymodin Thymotol UNII-A51HJM3XSU 1,1'-Biphenyl, 4,4'-bis(iodooxy)-2,2'-dimethyl-5, 5'-bis(1-methylethyl)- 4,4'-bis(I4,4'-Bodooxy)-2,2'-dimethyl-5,5'-bis(1-methylethyl-1,1'-biphenyl (CAS 552-22-7)
- (R)-3-([1,1'-Biphenyl]-2-yl)-2-((tert-butoxycarbonyl)amino)propanoic acid (CAS 1212891-95-6)
- 2-(4-Methoxyphenyl)-5-methyl-1-phenyl-1H-pyrrole (CAS 61363-17-5)
- Semaglutide impurity 266 (CAS CATO-C4X-2226266)
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