5-Chlorobenzotriazole CAS 94-97-3
| CAS No. | 94-97-3 |
| Molecular Formula | C6H4ClN3 |
| Molecular Weight | 153.57 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Chlorobenzotriazole is closely related to a nitrile group, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies 5-Chlorobenzotriazole (CAS 94-97-3), a certified reference material (molecular formula C6H4ClN3, MW 153.57 g/mol) for analytical method development and quality control.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 5-Chlorobenzotriazole is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 153.57 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Chlorobenzotriazole 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 | C6H4ClN3 |
| Molecular Weight | 153.57 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | >95% |
| 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 Chlorobenzotriazole Standards
Recommended Standards
- Baricitinib Impurity 31 (CAS 335654-06-3)
- 6-chloro-2-fluoro-pyridin-3-ol (CAS 883107-68-4)
- Roxatidine Impurity 57 (CAS 615-18-9)
- 1-Cyanoethanesulfonyl chloride (CAS 34876-17-0)
- 1-(3-aminoazetidin-1-yl)ethan-1-one hydrochloride (CAS 1462921-50-1)
- 4-(2,6-Bis(4-nitrophenyl)pyridin-4-yl)phenol (CAS 850735-06-7)
- 5-Bromo-1-(2,6-difluoro-4-(trifluoromethyl)phenoxy)-3-fluoro-2-nitrobenzene (CAS 2244083-99-4)
- 2-Amino-1-cyclopropylethan-1-one (CAS 725205-48-1)
- 5-Methylheptanal (CAS 75579-88-3)
- 3-Methoxy-N-methyl-5-(trifluoromethyl)aniline (CAS 1260854-98-5)
- 1,3-Thiazole-2-carbonyl chloride (CAS 30216-57-0)
- 1-Ethyl-3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)urea (CAS 874291-00-6)
- I279Q16FU6 503-30-0 1,3-Epoxypropane Oxetane Trimethylene oxide 1,2-Epoxypropane 1,3-Propylene oxide Trimethylene oxide (8CI) AI3-52868 CCRIS 4707 Cyclooxabutane EINECS 207-964-3 HSDB 5492 NSC 30086 Oxacyclobutane Oxetan Propane, 1,3-epoxy- alpha,gamma-Propane oxide Trimethylenoxid [German] Trimethylenoxid UNII-I279Q16FU6 (CAS 503-30-0)
- Semaglutide impurity 54 (CAS CATO-C4X-222654)
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