4-Chloro-1H-benzo[d][1,2,3]triazol-5-ol CAS 860591-38-4
| CAS No. | 860591-38-4 |
| Molecular Formula | C6H4ClN3O |
| Molecular Weight | 169.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 169.57 g/mol gives 4-Chloro-1H-benzo[d][1,2,3]triazol-5-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Chloro-1H-benzo[d][1,2,3]triazol-5-ol (CAS 860591-38-4), a certified reference material (molecular formula C6H4ClN3O, MW 169.57 g/mol) for analytical method development and quality control.
4-Chloro-1H-benzo[d][1,2,3]triazol-5-ol (C6H4ClN3O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C6H4ClN3O |
| Molecular Weight | 169.57 g/mol |
| Appearance | Off-white to pale 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 7-chloro-1H-pyrazolo[4,3-d]pyrimidin-5-amine (CAS 1086398-36-8)
- 2-Chloro-4-methoxypyrimidine-5-carbonitrile (CAS 1106295-93-5)
- 3-Chloro-[1,2,4]triazolo[4,3-b]pyridazin-6-amine (CAS 1150888-24-6)
- 7-Chloro-3H-imidazo[4,5-b]pyridine 4-oxide (CAS 115953-98-5)
- 7-Chloro-2-methyloxazolo[5,4-d]pyrimidine (CAS 118767-93-4)
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Recommended Standards
- 4-Chloro-1H-1,2,3-benzotriazol-1-ol (CAS 39968-29-1)
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- 3-Cyano-1-methyl-1H-pyrazole-4-carbonyl chloride (CAS 81303-58-4)
- 4-chloro-3-methyl-[1,2]oxazolo[5,4-d]pyrimidine (CAS 51850-60-3)
- 4-Bromo-2-cyclopropoxy-N-methylaniline (CAS 1243286-45-4)
- 3-Amino-5-bromobenzenesulfonic acid (CAS 1375474-43-3)
- (E)-4,4'-(diazene-1,2-diyl)bis(2,6-dichlorophenol) (CAS 92050-15-2)
- FCN437 Impurity 2 (CAS CATO-C4X-33242)
- 4,4-Dimethylpent-1-yn-3-ol (CAS 19115-28-7)
- 5-Methyl-1-(thiazol-2-yl)-N-(o-tolyl)-1H-1,2,3-triazole-4-carboxamide (CAS 1251697-27-4)
- 4,4',4'',4'''-(Pyrazine-2,3,5,6-tetrayl)tetrabenzoic acid (CAS 2089016-10-2)
- Allyl 4-((2-chloro-4-fluorobenzyl)oxy)-3-ethoxybenzoate (CAS 1706450-24-9)
- trans-2-(4-Bromophenyl)-5-propyltetrahydro-2H-pyran (CAS 700863-30-5)
- Mitogenic Pentapeptide (CAS 87173-03-3)
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