2-Nitrothieno[2,3-b]pyridin-3-amine CAS 52505-49-4
| CAS No. | 52505-49-4 |
| Molecular Formula | C7H5N3O2S |
| Molecular Weight | 195.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Nitrothieno[2,3-b]pyridin-3-amine (CAS 52505-49-4) is a high-purity analytical reference standard with the molecular formula C7H5N3O2S and a molecular weight of 195.20 g/mol.
Based on its molecular formula C7H5N3O2S, 2-Nitrothieno[2,3-b]pyridin-3-amine contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 195.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 2-Nitrothieno[2,3-b]pyridin-3-amine 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 | C7H5N3O2S |
| Molecular Weight | 195.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Nitrothieno Standards
- 7-Nitrothieno[3,2-b]pyridine 4-oxide (CAS 104273-28-1)
- 4-Nitrothieno[2,3-b]pyridine 7-oxide (CAS 25557-51-1)
- 6-Nitrothieno[3,2-b]pyridin-7(4H)-one (CAS 905735-40-2)
- 6-Nitrothieno[2,3-d]pyrimidin-4-ol (CAS 56844-41-8)
- 7-Nitrothieno[3,2-b]pyridine (CAS 104273-31-6)
- 3-Nitrothieno[2,3-c]pyridine (CAS 28783-28-0)
- 3-Nitrothieno[3,2-b]pyridine (CAS 26579-59-9)
Recommended Standards
- 2-Hydroxybenzo[d]thiazole-6-carboxylic Acid (CAS 99615-68-6)
- 2-Thioxo-2,3-dihydrobenzo[d]oxazole-5-carboxylic acid (CAS 7341-98-2)
- 2-Dimethylphosphorylbicyclo[4.2.0]octa-1(6),2,4-trien-3-amine (CAS 2634647-77-9)
- 3-(2-Thienyl)-5-isoxazolecarboxylic Acid (CAS 204910-49-6)
- 2-Chloro-N-(tetrahydro-2H-pyran-4-ylmethyl)-nicotinamide (CAS 1220035-49-3)
- N-[2-(Trimethylammonium)ethyl]maleimide Chloride (CAS 69684-10-2)
- 6,7-Difluoroindoline (CAS 1249655-37-5)
- 4-(4-propylcyclohexyl)benzonitrile (CAS 313552-83-9)
- Methyl 2-amino-2-cyclobutylacetate (CAS 1511292-06-0)
- (R)-1-(3,5-Dimethoxyphenyl)ethanamine hydrochloride (CAS 1257106-72-1)
- D-Gluconic acid manganese salt (CAS 6485-39-8)
- 1,5-Dimethyl (2E)-3-oxo-2-{2-[2-(trifluoromethyl)phenyl]hydrazin-1-ylidene}pentanedioate (CAS 121582-46-5)
- N-(Pentan-3-yl)cycloheptanamine hydrobromide (CAS 1609400-67-0)
- Semaglutide impurity 206 (CAS CATO-C4X-2226206)
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