4-Nitro-2-(1H-pyrazol-3-yl)-1H-indole CAS 827317-33-9
| CAS No. | 827317-33-9 |
| Molecular Formula | C11H8N4O2 |
| Molecular Weight | 228.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-Nitro-2-(1H-pyrazol-3-yl)-1H-indole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 228.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4-Nitro-2-(1H-pyrazol-3-yl)-1H-indole (CAS 827317-33-9), a certified reference material (molecular formula C11H8N4O2, MW 228.21 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C11H8N4O2 |
| Molecular Weight | 228.21 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 4 |
Related Nitro Standards
- 3-[(3-Nitro-1h-pyrazol-1-yl)methyl]benzonitrile (CAS 1006569-15-8)
- 3-Methyl-2-nitro-3H-imidazo[4,5-F]quinoline (CAS 114451-08-0)
- Ethyl 2-(3-nitro-1H-1,2,4-triazol-1-yl)butanoate (CAS 1341199-88-9)
- 2-Nitro-6-methyldipyrido[1,2-a:3,2-d]imidazole (CAS 83692-82-4)
- 3-[(4-Nitro-1h-pyrazol-1-yl)methyl]benzonitrile (CAS 957501-01-8)
- 4-[(3-Nitro-1h-pyrazol-1-yl)methyl]benzonitrile (CAS 957265-89-3)
- 4-[(4-Nitro-1h-pyrazol-1-yl)methyl]benzonitrile (CAS 91136-08-2)
- 6-Nitro-1-(prop-2-yn-1-yl)quinolin-2(1H)-one (CAS 1420794-96-2)
Recommended Standards
- 5-(1H-Pyrazolo[3,4-b]pyridin-3-yl)-1H-pyrrole-2-carboxylic acid (CAS 658696-08-3)
- 5-Amino-[1,2,3]triazolo[1,5-a]quinazoline-3-carboxamide (CAS 52459-32-2)
- 4-(Isopropylamino)-2-(trifluoromethyl)benzonitrile (CAS 864286-45-3)
- 5-Amino-2-(4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-1,2,4-triazin-3(2H)-one (CAS 50-92-0)
- 2-Ethyl-N-(3-fluoropropyl)pyrazolo[1,5-a]pyridin-3-amine (CAS 605672-95-5)
- Fluorescein diphosphate (tetraammonium) (CAS 217305-49-2)
- 2-Amino-2-(3-methylthiophen-2-yl)acetamide (CAS 1290952-36-1)
- N-(pyridin-2-ylmethyl)-3,4-dihydro-2H-pyrrol-5-amine (CAS 745033-77-6)
- 1-(2-Fluorophenyl)-3-(2-((5-(pyrrolidin-1-yl)pyridazin-3-yl)amino)ethyl)urea (CAS 1796964-28-7)
- 2-(4-(3-Hydroxypropoxy)phenyl)acetonitrile (CAS 147625-08-9)
- tert-Butyl ethyl ether (CAS 637-92-3)
- Cyclohexadecane (CAS 295-65-8)
- 3-Amino-3-(3-chloro-4-fluorophenyl)propionic Acid (CAS 412925-25-8)
- Tirzepatide Impurity 14 (CAS CATO-C4X-324014)
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