3-Nitro-1H-pyrrolo[3,2-b]pyridin-7-ol CAS 1190318-84-3
| CAS No. | 1190318-84-3 |
| Molecular Formula | C7H5N3O3 |
| Molecular Weight | 179.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Nitro-1H-pyrrolo[3,2-b]pyridin-7-ol (CAS 1190318-84-3), a certified reference material (molecular formula C7H5N3O3, MW 179.13 g/mol) for analytical method development and quality control.
The molecular framework of 3-Nitro-1H-pyrrolo[3,2-b]pyridin-7-ol (C7H5N3O3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), 3-Nitro-1H-pyrrolo[3,2-b]pyridin-7-ol 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 | C7H5N3O3 |
| 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, water |
| 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.) | 1989 |
| Nitrogen Atoms | 3 |
Related Nitro Standards
- 7-nitro-1H-indazol-6-ol (CAS 1019332-61-6)
- 5-Nitro-1H-indazol-6-ol (CAS 1082041-56-2)
- 3-Nitro-1H-pyrrolo[3,2-b]pyridin-5-ol (CAS 1190311-92-2)
- 3-Nitro-1H-pyrrolo[3,2-c]pyridin-4-ol (CAS 1190314-28-3)
- 4-Nitro-1H-pyrrolo[2,3-b]pyridin-5-ol (CAS 1190318-01-4)
- 3-Nitro-1H-pyrrolo[3,2-b]pyridin-6-ol (CAS 1190318-36-5)
- 3-Nitro-1H-pyrrolo[3,2-c]pyridin-6-ol (CAS 1190320-27-4)
- 3-Nitro-1H-pyrrolo[2,3-c]pyridin-7-ol (CAS 1190322-25-8)
Recommended Standards
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- rel-(3aR,4S,7R,7aS)-3a,4,7,7a-Tetrahydro-2,2-dimethyl-1,3-benzodioxole-4,7-diol (CAS 113863-66-4)
- Vardenafil Impurity 20 (CAS 879-57-2)
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