1H-Benzotriazol-5-ol CAS 54013-40-0
| CAS No. | 54013-40-0 |
| Molecular Formula | C6H5N3O |
| Molecular Weight | 135.12 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 1H-Benzotriazol-5-ol.
CATO supplies 1H-Benzotriazol-5-ol (CAS 54013-40-0), a certified reference material (molecular formula C6H5N3O, MW 135.12 g/mol) for analytical method development and quality control.
1H-Benzotriazol-5-ol (C6H5N3O) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C6H5N3O |
| Molecular Weight | 135.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1972 |
| Nitrogen Atoms | 3 |
Related H Standards
- 1H-1,2,3-benzotriazol-5-ylmethanol (CAS 106429-67-8)
- 1H-Benzotriazol-5-amine, 1-methyl- 1H-Benzotriazole, 5-amino-1-methyl- 27799-83-3 NSC-16401 NSC16401 (CAS 27799-83-3)
- 1H-1,2,3-benzotriazol-1-ylmethanol 1H-1,2,3-benzotriazole-1-methanol 28539-02-8 InChI=1/C7H7N3O/c11-5-10-7-4-2-1-3-6(7)8-9-10/h1-4,11H,5H (CAS 28539-02-8)
- [(1h-1,2,3-benzotriazol-5-yl)methyl](methyl)amine (CAS 1340144-38-8)
- 3-(1h-1,2,3-Benzotriazol-1-yl)propanenitrile (CAS 6946-09-4)
- 1,2,3-Benzotriazol-2-ylacetic acid (CAS 4144-68-7)
- 1H-1,2,3-Benzotriazol-1-ylacetic acid (CAS 4144-64-3)
- 2-(1H-1,2,3-benzotriazol-5-yl)acetic acid (CAS 491612-10-3)
Recommended Standards
- 1h,2h-Pyrrolo[1,2-d][1,2,4]triazin-1-one (CAS 50269-86-8)
- 1H-Imidazo[4,5-b]pyridine 4-oxide (CAS 6863-46-3)
- 1,7-dihydropyrazolo[3,4-b]pyridin-4-one (CAS 31591-86-3)
- 1H-Pyrazolo[3,4-b]pyridine 7-oxide (CAS 924909-11-5)
- (2-(4-Chloro-2-methylphenoxy)pyridin-3-yl)(4-(2-fluorophenyl)piperazin-1-yl)methanone (CAS 497060-65-8)
- tert-Butyl 3-(pyridin-2-ylthio)piperidine-1-carboxylate (CAS 1159982-28-1)
- 2-((5-Amino-1,3,4-thiadiazol-2-yl)thio)-N-(thiophen-2-ylmethyl)acetamide (CAS 565217-50-7)
- Methyl 5-chloro-4-iodo-2-methoxybenzoate (CAS 473574-26-4)
- 1-tert-Butylimidazole (CAS 45676-04-8)
- (S)-2-Methoxy-4-(2-trifluoromethyl-piperidin-1-yl)-aniline (CAS 1416348-85-0)
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