5-Amino-1-(3-chlorophenyl)-1h-1,2,3-triazole-4-carboxamide CAS 99849-25-9
| CAS No. | 99849-25-9 |
| Molecular Formula | C9H8ClN5O |
| Molecular Weight | 237.65 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Amino-1-(3-chlorophenyl)-1h-1,2,3-triazole-4-carboxamide (C9H8ClN5O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
5-Amino-1-(3-chlorophenyl)-1h-1,2,3-triazole-4-carboxamide (CAS 99849-25-9), molecular formula C9H8ClN5O and molecular weight 237.65 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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.
Physical & Chemical Properties
| Molecular Formula | C9H8ClN5O |
| Molecular Weight | 237.65 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Amino Standards
- 5-Amino-1-(4-chlorophenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 99846-90-9)
- 5-Amino-3-(3-chlorophenyl)isoxazole-4-carboxamide (CAS 1005509-36-3)
- Methyl 2-Amino-4-chloroquinazoline-7-carboxylate (CAS 1246209-90-4)
- 5-Amino-1-(2-chlorophenyl)-1H-pyrazole-4-carboxylic acid (CAS 14678-89-8)
- 5-Amino-1-(4-chlorophenyl)-1h-pyrazole-4-carboxylic acid (CAS 14678-90-1)
- 5-Amino-1-(3-chlorophenyl)-1H-pyrazole-4-carboxylic Acid (CAS 15070-84-5)
- 6-Amino-1-(2-chlorophenyl)pyrimidine-2,4(1H,3H)-dione (CAS 180028-88-0)
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Recommended Standards
- 4-Chloro-n-(2-methyl-2h-1,2,3,4-tetrazol-5-yl)benzamide (CAS 679824-05-6)
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- N-(4-(1H-tetrazol-1-yl)phenyl)-2-chloroacetamide (CAS 355826-97-0)
- 2-(Chloromethyl)-3,5-Dimethyl-4-(2,2,2-Trifluoroethyl)Pyridine (CAS 256642-27-0)
- 8-Bromoimidazo[1,2-a]pyridine-3-carboxylic acid (CAS 1159831-04-5)
- Dihydroxyprogesterone Acetophenide (CAS 1179-87-9)
- Chlamydocin (CAS 53342-16-8)
- 5-Bromopyridine-2,3-diamine dihydrochloride (CAS 1171836-31-9)
- 3-(4-Bromophenyl)-2-(thiophen-2-yl)prop-2-enoic acid (CAS 37094-46-5)
- 2-Amino-1-(1-phenyl-1h-pyrazol-4-yl)ethan-1-one (CAS 1521074-57-6)
- (S)-3,3,3-Trifluoropropane-1,2-diamine dihydrochloride (CAS 2322869-99-6)
- Aripiprazole Impurity 15 (CAS CATO-C4X-100815)
- Lofexidine HCl (CAS 21498-08-8)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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