4,5,6,7-Tetrachloro-1H-1,2,3-benzotriazole CAS 2338-10-5
| CAS No. | 2338-10-5 |
| Molecular Formula | C6HCl4N3 |
| Molecular Weight | 256.90 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,5,6,7-Tetrachloro-1H-1,2,3-benzotriazole (CAS 2338-10-5), a certified reference material (molecular formula C6HCl4N3, MW 256.90 g/mol) for analytical method development and quality control.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 4,5,6,7-Tetrachloro-1H-1,2,3-benzotriazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 256.90 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 4,5,6,7-Tetrachloro-1H-1,2,3-benzotriazole 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.
Physical & Chemical Properties
| Molecular Formula | C6HCl4N3 |
| Molecular Weight | 256.90 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Tetrachloro Standards
- 2,3,4,6-Tetrachloro-5-hydroxy-benzaldehyde (CAS 704892-44-4)
- 2,3,5,6-Tetrachloro-4-methoxyphenol (CAS 484-67-3)
- 2,2,6,6-Tetrachloro-1-hydroxycyclohexanecarbonitrile (CAS 1724-38-5)
- 2,3,5,6-Tetrachloro-1H-pyridine-4-thione (CAS 10351-06-1)
- 4,4,5,5-Tetrachloro-2,2-difluoro-1,3-dioxolane (CAS 87075-01-2)
- 1,2,3,5-Tetrachloro-4-methoxybenzene (CAS 938-22-7)
- Tetrachloro-o-benzoquinone (CAS 2435-53-2)
- 1,3,6,8-Tetrachloro-2,7-naphthyridine (CAS 27224-97-1)
Recommended Standards
- 4-Bromo-5-(bromomethyl)isoxazol-3(2H)-one (CAS 83014-82-8)
- 1,3-Dibromo-5-fluorobenzene-d3 (CAS 1219805-87-4)
- 3-Amino-4,4-dibromo-1H-pyrazol-5(4H)-one (CAS 171294-89-6)
- 2-Bromo-3,5-dichloro-4-methoxypyridine (CAS 1823961-01-8)
- 3,3'-Diethoxy-[1,1'-biphenyl]-4,4'-dicarboxylicacid (CAS 2051918-30-8)
- Methyl 2-({[4-(benzyloxy)phenyl]methyl}(2,2-diphenylethyl)amino)acetate (CAS 1186194-54-6)
- 0137AD 1-(4-Fluoro-3-methoxybenzyl)piperidine-4-carboxylic acid hydrochloride 1185100-90-6 C14H19ClFNO3 (CAS 1185100-90-6)
- 1-[(4-Methyl-3-nitrobenzene)sulfonyl]piperidine (CAS 91558-67-7)
- 4-[(4-methylphenyl)amino]-2,3-dihydro-1$l^{6}-thiophene-1,1-dione (CAS 55357-70-5)
- 1-{[(2-bromophenyl)methylidene]amino}guanidine (CAS 132685-67-7)
- 2-(6-Oxo-1,3,4,6-tetrahydro-2H-pyrimido[1,2-a]pyrimidin-8-yl)acetic acid (CAS 1706428-52-5)
- 1-Methylcyclobutane-1-carbonitrile (CAS 49826-21-3)
- 2-(Cyclopropylmethoxy)-4-fluoroaniline hydrochloride (CAS 1333994-64-1)
- Semaglutide impurity 45 (CAS CATO-C4X-222645)
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