5-Chloro-4H-1,2,4-triazol-3-amine CAS 130631-49-1
| CAS No. | 130631-49-1 |
| Molecular Formula | C2H3ClN4 |
| Molecular Weight | 118.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
5-Chloro-4H-1,2,4-triazol-3-amine (CAS 130631-49-1), molecular formula C2H3ClN4 and molecular weight 118.53 g/mol, is a CATO reference standard with documented purity and traceability.
5-Chloro-4H-1,2,4-triazol-3-amine (C2H3ClN4) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C2H3ClN4 |
| Molecular Weight | 118.53 g/mol |
| 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 5-Chloro-1-methyl-1h-1,2,3,4-tetrazole (CAS 67648-50-4)
- 3-Chloro-5-methyl-1,2,4-oxadiazole (CAS 1359822-66-4)
- 2-Chloro-5-methyl-1,3,4-oxadiazole (CAS 98321-75-6)
- 3-chloro-2,5-dihydrofuran-2-one (CAS 31004-27-0)
- 2-Chloro-3-methylcyclopropane-1-carbaldehyde (CAS 139387-00-1)
- 3-Chloro-2-methylbut-2-enal (CAS 1679-40-9)
- 1-Chloro-4-methoxybut-2-yne (CAS 693-27-6)
- 2-Chloro-1-cyclopropylethan-1-one (CAS 7379-14-8)
Recommended Standards
- Propargyl Chloroformate (CAS 35718-08-2)
- 5-(Chloromethyl)tetrazole (CAS 55408-11-2)
- 5-(Chloromethyl)-1,2,4-oxadiazole (CAS 69146-79-8)
- Ethyl β-Chlorovinyl Ketone (CAS 105-32-8)
- 4-(Difluoromethoxy)-2-fluorobenzoic acid (CAS 1017779-52-0)
- Methyl 4-chloro-2-(trifluoromethyl)quinoline-6-carboxylate (CAS 958332-63-3)
- Ethyl 4-(2-(2-ethoxy-4-formylphenoxy)acetamido)benzoate (CAS 692262-39-8)
- H-Gly-Lys-OH ·2 HCl (CAS 31461-63-9)
- 2-Chloro-N,N-bis(2-methoxyethyl)acetamide (CAS 10263-25-9)
- 6-Bromoquinazoline-2,4-diamine (CAS 50440-75-0)
- Nintedanib (CAS 656247-17-5)
- 5-Methyl-4-(2,4,5-trimethylphenyl)-1,3-thiazol-2-amine (CAS 743444-80-6)
- 1-(4-Methylthiazol-2-yl)cyclohexan-1-amine (CAS 1176104-06-5)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com