5-(1-Hydroxynaphthalen-2-yl)-1H-1,2,4-triazol-3(2H)-one CAS 62353-83-7
| CAS No. | 62353-83-7 |
| Molecular Formula | C12H9N3O2 |
| Molecular Weight | 227.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-(1-Hydroxynaphthalen-2-yl)-1H-1,2,4-triazol-3(2H)-one.
5-(1-Hydroxynaphthalen-2-yl)-1H-1,2,4-triazol-3(2H)-one (CAS 62353-83-7), molecular formula C12H9N3O2 and molecular weight 227.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(1-Hydroxynaphthalen-2-yl)-1H-1,2,4-triazol-3(2H)-one (C12H9N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 227.22 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C12H9N3O2 |
| Molecular Weight | 227.22 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
Related Hydroxynaphthalen Standards
- methyl 2-(6-hydroxynaphthalen-2-yl)acetate (CAS 91903-08-1)
- Ethyl 2-(3-hydroxynaphthalen-1-yl)acetate (CAS 611235-20-2)
- Ethyl 2-(5-hydroxynaphthalen-1-yl)acetate (CAS 872098-19-6)
- 2-((3-Hydroxynaphthalen-2-yl)oxy)acetic acid (CAS 72836-74-9)
- 2-((8-Hydroxynaphthalen-2-yl)oxy)acetic acid (CAS 72836-77-2)
- Methyl (7-hydroxynaphthalen-1-yl)carbamate (CAS 132-63-8)
- 4-Hydroxynaphthalen-1-yl methylcarbamate (CAS 5266-97-7)
- 5-Hydroxynaphthalen-1-yl methylcarbamate (CAS 5721-72-2)
Recommended Standards
- 4-Phenyl-5-(4H-1,2,4-triazol-4-yl)-1H-pyrazol-3(2H)-one (CAS 62538-01-6)
- 5-(2-Amino-4,6-dihydroxypyrimidin-5-yl)pentanoic acid (CAS 62782-57-4)
- 4'-Nitro-[1,1'-biphenyl]-4-carbaldehyde (CAS 98648-23-8)
- 5-(2-Formylphenyl)nicotinic acid (CAS 566198-40-1)
- Ethyl 4,8-dihydroxyquinoline-3-carboxylate (CAS 27333-37-5)
- 2-((2,5-Dioxopyrrolidin-1-yl)oxy)-2-methylpropanoic acid (CAS 1587660-78-3)
- N-ethyl-N-(piperidin-3-ylmethyl)acetamide (CAS 1353953-27-1)
- N-cyclopropyl-2,3-difluoro-6-nitroaniline (CAS 1249882-57-2)
- Mitoquinol (CAS 845959-55-9)
- 2-Benzyl-4-((2,6-dichlorobenzyl)oxy)quinazoline (CAS 400078-69-5)
- (S)-1-(4-Pyridyl)-1,3-propanediol (CAS 685111-87-9)
- 1-(Cyclobutanecarbonyl)piperidine-4-carboxylic acid (CAS 700815-60-7)
- Ethyl 2-((2-methoxyethyl)amino)-2-methylpropanoate (CAS 1247621-19-7)
- Neuropeptide Y (2-36), amide, porcine (CAS 102961-52-4)
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