5,7-Dichloro-6-(2-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidine CAS 159331-22-3
| CAS No. | 159331-22-3 |
| Molecular Formula | C11H5Cl3N4 |
| Molecular Weight | 299.54 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5,7-Dichloro-6-(2-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 159331-22-3), a certified reference material (molecular formula C11H5Cl3N4, MW 299.54 g/mol) for analytical method development and quality control.
Structurally, 5,7-Dichloro-6-(2-chlorophenyl)-[1,2,4]triazolo[1,5-a]pyrimidine (C11H5Cl3N4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 299.54 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C11H5Cl3N4 |
| Molecular Weight | 299.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Dichloro Standards
- 4,6-Dichloro-1-(4-chlorophenyl)-1H-pyrazolo[3,4-d]pyrimidine (CAS 5334-34-9)
- 5,8-Dichloro-2h-chromene-3-sulfonyl chloride (CAS 1235440-13-7)
- 7,8-Dichloro-2h-chromene-3-sulfonyl chloride (CAS 1235441-04-9)
- 2,2-dichloro-1-oxo-2,3-dihydro-1H-indene-5-sulfonyl chloride (CAS 1803598-16-4)
- 4,6-Dichloro-5-(2-chlorophenyl)-2-cyclopropylpyrimidine (CAS 1523025-65-1)
- 2,4-Dichloro-p-terphenyl (CAS 61576-83-8)
- 2',5'-Dichloro-1,1':4',1''-terphenyl (CAS 930796-39-7)
- 2,5-Dichloro-m-terphenyl (CAS 215508-04-6)
Recommended Standards
- 6-Chloro-2-(3,4-dichlorophenyl)oxazolo[5,4-b]pyridine (CAS 1354749-87-3)
- 2-Bromo-1-(3-chloropropyl)-3-(difluoromethoxy)benzene (CAS 1806348-79-7)
- 6-Chloro-2-(2,5-dichlorophenyl)oxazolo[5,4-b]pyridine (CAS 1354749-78-2)
- 6-Chloro-2-(2,4-dichlorophenyl)oxazolo[5,4-b]pyridine (CAS 1354749-73-7)
- N1-cyclohexyl-N1-ethyl-4-(ethylsulfonyl)benzene-1,3-diamine (CAS 1219972-64-1)
- 2,8-Dinitrodibenzothiophene (CAS 109041-38-5)
- 2-(3-Methoxypropyl)cyclopentan-1-ol (CAS 1247519-64-7)
- 6-[4-(2-hydroxyethyl)piperazine-1-carbonyl]-2-methyl-2,3-dihydropyridazin-3-one (CAS 1153231-27-6)
- (4-Bromo-2-(trifluoromethyl)phenyl)boronic acid (CAS 1394346-22-5)
- 4-Bromo-N-isopropylbenzamide (CAS 336182-29-7)
- (S)-Dimethyl 2-aminohexanedioate (CAS 157701-42-3)
- N-(4-chlorophenyl)-4-phenylpiperazine-1-carboxamide (CAS 549544-51-6)
- 5-Chloro-3-(4-methoxy-phenyl)-3H-[1,2,3]triazolo[4,5-d]pyrimidine (CAS 1448694-38-9)
- Semaglutide Impurity 192 (CAS CATO-C4X-2226192)
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