2-Nitroterephthalaldehyde CAS 39909-72-3
| CAS No. | 39909-72-3 |
| Molecular Formula | C8H5NO4 |
| Molecular Weight | 179.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Nitroterephthalaldehyde (C8H5NO4) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
2-Nitroterephthalaldehyde (CAS 39909-72-3), molecular formula C8H5NO4 and molecular weight 179.13 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Nitroterephthalaldehyde 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 | C8H5NO4 |
| Molecular Weight | 179.13 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
Recommended Standards
- 2-Nitrobenzofuran-7-ol (CAS 40739-73-9)
- 2-Oxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid (CAS 65422-72-2)
- 2-Nitrobenzofuran-6-ol (CAS 40739-72-8)
- 2-Oxo-2,3-dihydrobenzo[d]oxazole-6-carboxylic Acid (CAS 54903-16-1)
- 2-Phenylisoindolin-1-imine hydrobromide (CAS 113918-59-5)
- Ytterbium(III) sulfate (CAS 13469-97-1)
- 3-Methyl-5-nitroisothiazole (CAS 36778-16-2)
- Pramipexole Impurity 73 (CAS 3028194-78-4(free base))
- Dimethyl 3-methylisoxazole-4,5-dicarboxylate (CAS 53847-49-7)
- 1-Phenylmethanesulfonylpiperidin-4-amine hydrochloride (CAS 1315369-08-4)
- 3-Bromo-2-phenyl-6,7-dihydro-5H-pyrrolo[1,2-a]imidazole (CAS 107392-82-5)
- 4-((2,3-Dihydro-1h-inden-5-yl)thio)butan-2-one (CAS 1152931-81-1)
- Tetrahydro-1,1-dioxido-3-thienyl 4-nitrobenzenesulfonate (CAS 62671-90-3)
- Met(O)14-Exenatide trifluoroacetate salt (CAS 1678417-38-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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