3-Methylbenzo[d][1,2,3]triazin-4(3H)-one CAS 22305-44-8
| CAS No. | 22305-44-8 |
| Molecular Formula | C8H7N3O |
| Molecular Weight | 161.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Methylbenzo[d][1,2,3]triazin-4(3H)-one meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
3-Methylbenzo[d][1,2,3]triazin-4(3H)-one (CAS 22305-44-8), molecular formula C8H7N3O and molecular weight 161.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 3-Methylbenzo[d][1,2,3]triazin-4(3H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 161.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C8H7N3O |
| Molecular Weight | 161.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 3 |
Related Methylbenzo Standards
- 8-Methylbenzo[d][1,2,3]triazin-4(3H)-one (CAS 1008742-16-2)
- 3-Methylbenzo[d]isoxazole-6-carbaldehyde (CAS 1508191-80-7)
- 7-Methylbenzo[d][1,2,3]triazin-4(3H)-one (CAS 176260-30-3)
- 3-Methylbenzo[d]isoxazole-5-carbaldehyde (CAS 648448-98-0)
- 6-Methylbenzo[d][1,2,3]triazin-4(1H)-one (CAS 91532-23-9)
- 6-Methylbenzo[d]oxazole-2-carbaldehyde (CAS 944907-42-0)
- 5-Ethyl-3-methylbenzo[d]isoxazole (CAS 131222-23-6)
- 3-Ethyl-6-methylbenzo[c]isoxazole (CAS 64723-52-0)
Recommended Standards
- 3-Methyl-5-(pyridazin-4-yl)isoxazole (CAS 39123-41-6)
- 3-Methyl-5-(pyrazin-2-yl)isoxazole (CAS 457654-03-4)
- 3-Methylbenzoyl isocyanate (CAS 5893-29-8)
- 3-Methyl-4h-pyrido[2,1-c][1,2,4]triazin-4-one (CAS 33919-37-8)
- 2-{4-[2-(2-Methoxyethoxy)ethoxy]phenyl}-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1366602-62-1)
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- 1-(4-Chlorophenyl)-1H-imidazole-4-carboxylic acid (CAS 445302-22-7)
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