1,4-Dichloro-6-nitrophthalazine CAS 159275-52-2
| CAS No. | 159275-52-2 |
| Molecular Formula | C8H3Cl2N3O2 |
| Molecular Weight | 244.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1,4-Dichloro-6-nitrophthalazine is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 244.03 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).
1,4-Dichloro-6-nitrophthalazine (CAS 159275-52-2) is a high-purity analytical reference standard with the molecular formula C8H3Cl2N3O2 and a molecular weight of 244.03 g/mol.
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.
CATO manufactures 1,4-Dichloro-6-nitrophthalazine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H3Cl2N3O2 |
| Molecular Weight | 244.03 g/mol |
| Appearance | Pale yellow to 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Dichloro Standards
- 2,4-Dichloro-7-nitroquinazoline (CAS 129112-65-8)
- 2,8-Dichloro-7-nitro-1,5-naphthyridine (CAS 1366050-48-7)
- 2,3-Dichloro-6- Nitroquinoxaline (CAS 2379-60-4)
- 2,4-Dichloro-6-nitroquinazoline (CAS 74173-77-6)
- 3,5-Dichloro-N-(2,2,2-trifluoroethyl)aniline (CAS 1039986-74-7)
- 2,3-Dichloro-N-(2,2,2-trifluoroethyl)aniline (CAS 1040054-20-3)
- 2,4-Dichloro-N-(2,2,2-trifluoroethyl)aniline (CAS 1042506-49-9)
- (2,6-Dichloro-3-(trifluoromethyl)phenyl)methanamine (CAS 1092461-13-6)
Recommended Standards
- 3-Iodoimidazo[1,5-a]pyridine (CAS 1504820-07-8)
- 5-Iodo-4-methylpicolinonitrile (CAS 1801841-46-2)
- 1-Iodoimidazo[1,5-a]pyridine (CAS 1422773-18-9)
- 4-Iodo-5-methylpicolinonitrile (CAS 1804410-04-5)
- 5-Chloroquinolin-8-yl (3-chlorophenyl)carbamate (CAS 20842-59-5)
- tert-Butyl 5-(1,3-dioxolan-2-yl)-2-thienyl ketone (CAS 898772-82-2)
- 4-(2-Chloro-6-fluorophenyl)-1,2-dihydro-3h-pyrazol-3-imine (CAS 941573-46-2)
- (4-Chlorophenyl)trimethoxysilane (CAS 35692-30-9)
- Ethyl Imidazo[1,2-a]pyridine-5-carboxylate (CAS 177485-39-1)
- 1,3-Dimethyl-2,3-dihydroquinolin-4(1H)-one (CAS 53207-49-1)
- 3,12-Dioxa-6,9-dithiatetradecane (CAS 14440-87-0)
- Avanafil Impurity 28 (CAS CATO-C4X-111828)
- 6-(Ethylthio)pyrimidin-4-amine (CAS 6303-56-6)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
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