3,5-Dichloro-2-nitrobenzaldehyde CAS 59178-12-0
| CAS No. | 59178-12-0 |
| Molecular Formula | C7H3Cl2NO3 |
| Molecular Weight | 220.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3,5-Dichloro-2-nitrobenzaldehyde (CAS 59178-12-0), molecular formula C7H3Cl2NO3 and molecular weight 220.01 g/mol, is a CATO reference standard with documented purity and traceability.
3,5-Dichloro-2-nitrobenzaldehyde (C7H3Cl2NO3) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 3,5-Dichloro-2-nitrobenzaldehyde 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 | C7H3Cl2NO3 |
| Molecular Weight | 220.01 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 2,4-Dichloro-6-nitrobenzaldehyde (CAS 1086837-72-0)
- 2,3-Dichloro-4-nitrobenzaldehyde (CAS 1437548-44-1)
- 2,4-Dichloro-3-nitrobenzaldehyde (CAS 1804897-06-0)
- 3,4-Dichloro-2-nitrobenzaldehyde (CAS 1804897-10-6)
- 3,4-Dichloro-5-nitrobenzaldehyde (CAS 1806356-60-4)
- 2,3-Dichloro-6-nitrobenzaldehyde (CAS 75618-41-6)
- 2,4-Dichloro-5-nitrobenzaldehyde (CAS 53581-87-6)
- 2,6-Dichloro-3-nitrobenzaldehyde (CAS 5866-97-7)
Recommended Standards
- 2-Iodo-6-methylpyrazine (CAS 58139-06-3)
- 3-Chloro-4-nitrobenzoyl Chloride (CAS 55737-29-6)
- 2-Iodo-5-methylpyrazine (CAS 914452-70-3)
- 4,5-Dichloro-2-nitrobenzaldehyde (CAS 56990-04-6)
- Dimethyl-3,3-[(2-phenylethyl)imino]dipropanoate (CAS 38129-46-3)
- 1-[2-(Trifluoromethyl)phenyl]ethylamine Hydrochloride (CAS 39959-68-7)
- 3,4-Dichlorobenzoylacetonitrile (CAS 4640-68-0)
- 2-Amino-2-(4-(methoxycarbonyl)phenyl)acetic acid (CAS 71048-74-3)
- Fmoc-Thr(psi(me,me)pro)-OH (CAS 2023823-19-8)
- 2-(2-Ethoxyethoxy)-5-(trifluoromethyl)aniline (CAS 946727-90-8)
- 2-Bromo-1-(5-chlorofuran-2-yl)ethan-1-one (CAS 887588-42-3)
- 2-Amino-5,6-dimethoxybenzothiazole (CAS 6294-52-6)
- 3-((Dimethylamino)methyl)-4-methoxybenzonitrile (CAS 1517044-21-1)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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