5,7-Dichlorobenzo[c][1,2,5]oxadiazol-4-amine CAS 330982-41-7
| CAS No. | 330982-41-7 |
| Molecular Formula | C6H3Cl2N3O |
| Molecular Weight | 204.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,7-Dichlorobenzo[c][1,2,5]oxadiazol-4-amine (C6H3Cl2N3O) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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).
5,7-Dichlorobenzo[c][1,2,5]oxadiazol-4-amine (CAS 330982-41-7), molecular formula C6H3Cl2N3O and molecular weight 204.01 g/mol, is a CATO reference standard with documented purity and traceability.
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.
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 | C6H3Cl2N3O |
| Molecular Weight | 204.01 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichlorobenzo Standards
- 5,6-Dichlorobenzo[d]oxazol-2(3H)-one (CAS 5285-41-6)
- 5,7-Dichlorobenzo[d]isoxazol-3(2H)-one (CAS 66571-27-5)
- 5,7-Dichlorobenzo[d]oxazol-2(3H)-one (CAS 19932-89-9)
- 5,6-Dichlorobenzo[d]thiazole, 97% (CAS 118220-70-5)
- 6,7-Dichlorobenzo[d]thiazole, 97% (CAS 1695203-36-1)
- 3,5-Dichlorobenzo[d]isothiazole (CAS 19331-17-0)
- 4,6-Dichlorobenzo[d]thiazole, 97% (CAS 854059-32-8)
- 5,7-Dichlorobenzo[d]thiazole, 97% (CAS 939803-85-7)
Recommended Standards
- 5,6-Dichloro-1H,2H,3H-imidazo[4,5-b]pyridin-2-one (CAS 361365-08-4)
- 5,6-dichloro-1,2-benzoxazol-3-ol (CAS 855996-73-5)
- Pyridine-2,4-dicarbonyl dichloride (CAS 57062-14-3)
- 4,6-Dichloro-2-methoxypyrimidine-5-carbonitrile (CAS 56032-15-6)
- 2-(3,4-Dihydroquinolin-1(2H)-yl)-2-oxoacetic acid (CAS 1018565-99-5)
- 2-((2,6-Difluorobenzyl)(ethoxycarbonyl)amino)-4-(((2-methoxyethyl)(methyl)amino)methyl)-5-(4-(3-methoxyureido)phenyl)thiophene-3-carboxylic acid (CAS 737789-93-4)
- tert-Butyl 2-(3,4-dimethoxyphenyl)piperazine-1-carboxylate (CAS 886769-79-5)
- (4-Pyridyl)acetone Hydrochloride (CAS 70199-62-1)
- 5-(Ethylamino)naphthalene-1-sulfonyl chloride (CAS 728864-90-2)
- 1-[4-(3-Chlorophenoxy)phenyl]ethanone (CAS 1145-57-9)
- 2-Acetoxy-2-methyl-1-propanol-d (CAS 947252-23-5)
- n-Cyclobutyl-3,5-dimethylaniline (CAS 1250973-03-5)
- 2-Amino-2-(4-fluorophenyl)acetic Acid Hydrochloride (CAS 1219399-79-7)
- Autocamtide-2-Related Inhibitory Peptide TFA (CAS 167114-91-2（free base）)
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