5-Nitro-1H-pyrrole-2-carbaldehyde CAS 6327-67-9
| CAS No. | 6327-67-9 |
| Molecular Formula | C5H4N2O3 |
| Molecular Weight | 140.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 140.10 g/mol gives 5-Nitro-1H-pyrrole-2-carbaldehyde distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Nitro-1H-pyrrole-2-carbaldehyde (CAS 6327-67-9), molecular formula C5H4N2O3 and molecular weight 140.10 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C5H4N2O3, 5-Nitro-1H-pyrrole-2-carbaldehyde contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 140.10 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 5-Nitro-1H-pyrrole-2-carbaldehyde 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 | C5H4N2O3 |
| Molecular Weight | 140.10 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 2 |
Related Nitro Standards
- 4-Nitro-1H-pyrrole-3-carbaldehyde (CAS 36271-44-0)
- 4-nitro-1,2,5-oxadiazole-3-carbonitrile (CAS 159014-14-9)
- 1-Ethyl-3-nitro-1H-pyrrole (CAS 216591-43-4)
- 5-Nitro-2H-pyran-2-one (CAS 22682-11-7)
- 5-Nitro-2-hydroxypyrimidine (CAS 3264-10-6)
- 4-Nitro-1-vinyl-1H-pyrazole (CAS 117451-93-1)
- 2-Nitro-5-vinylfuran (CAS 71258-91-8)
- 4-nitro-Phen-2,6-d2-ol (CAS 90889-43-3)
Recommended Standards
- 5-Hydroxypyrimidine-4-carboxylic acid (CAS 201991-89-1)
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- 5-Nitropyridazin-3-amine (CAS 856587-98-9)
- (Z)-1,1,1,4,4,4-Hexafluoro-2-butene (CAS 692-49-9)
- 5-(Pyridin-4-yl)isoxazol-3-ol (CAS 167414-97-3)
- Benzyl(4-methoxyphenyl)dimethylsilane (CAS 1244855-91-1)
- 3-(Trifluoromethyl)pyridine-2-sulfonyl chloride (CAS 104040-75-7)
- 3-Fluoroquinoline-4-carboxylic acid (CAS 153880-32-1)
- (1r)-3-Oxocyclohexane-1-carboxylicacid (CAS 21531-43-1)
- N-Desethyl Acetildenafil (CAS 147676-55-9)
- 7-(benzyloxy)quinazoline (CAS 1803571-35-8)
- 3-(1-Oxophthalazin-2(1H)-yl)propanehydrazide (CAS 618442-00-5)
- Biotinyl-Neuropeptide W-23 (human) (CAS 1815618-09-7)
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