4-Nitrobenzo[cd]indol-2(1H)-one CAS 28440-62-2
| CAS No. | 28440-62-2 |
| Molecular Formula | C11H6N2O3 |
| Molecular Weight | 214.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Nitrobenzo[cd]indol-2(1H)-one is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Nitrobenzo[cd]indol-2(1H)-one (CAS 28440-62-2), molecular formula C11H6N2O3 and molecular weight 214.18 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 4-Nitrobenzo[cd]indol-2(1H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 214.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), 4-Nitrobenzo[cd]indol-2(1H)-one 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 | C11H6N2O3 |
| Molecular Weight | 214.18 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 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 2 |
Related Nitrobenzo Standards
- 5-Nitrobenzo[cd]indol-2(1H)-one (CAS 65300-69-8)
- 6-Nitrobenzo[cd]indol-2(1H)-one (CAS 34599-42-3)
- 4-Nitrobenzo[4,5]imidazo[1,2-a]pyridine (CAS 33452-78-7)
- 4-Nitrobenzo[d]thiazole-2(3H)-thione (CAS 1161015-34-4)
- 7-Nitrobenzo[d]thiazole-2-thiol (CAS 1196152-60-9)
- 6-Nitrobenzo[d][1,3]dioxole-5-carboxylic acid (CAS 716-32-5)
- 2-Methyl-4-nitrobenzo[d]thiazol-5-amine (CAS 40671-24-7)
- 2-Methyl-7-nitrobenzo[d]thiazol-6-amine (CAS 60090-57-5)
Recommended Standards
- 4,4-Diethoxy-1,1,1-trifluorobutan-2-one (CAS 333339-64-3)
- 5-(2-Nitrophenyl)furan-2-carbonitrile (CAS 57666-58-7)
- 4-(4-(Trifluoromethyl)phenyl)but-3-yn-2-ol (CAS 229015-31-0)
- 5-(3-Cyanophenyl)-4H-1,2,4-triazole-3-carboxylic acid (CAS 944906-65-4)
- 2-Chloro-5-{3-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-5-yl}pyridine (CAS 337920-78-2)
- 7-chloro-3-methylthieno[2,3-c]pyridine-4-carbonitrile (CAS 2306262-23-5)
- 1-[3-(2-Methoxy-4-nitrophenoxy)propyl]piperidine hydrochloride (CAS 97598-72-6)
- 1-(3-Ethoxy-4-methoxyphenyl)propan-2-one (CAS 875230-45-8)
- 5-Bromo-n-(1-methyl-2-trifluoromethylsulfanylethyl)-nicotinamide (CAS 1204234-88-7)
- Sulindac impurity 15 (CAS CATO-C4X-293015)
- 7-Phenyl-1,4-thiazepane-1,1-dioxide hydrochloride (CAS 2097936-35-9)
- Cyclohepta[c]pyrazole (CAS 275-70-7)
- 2-Amino-N-cyclopropyl-N-(3-nitrobenzyl)acetamide (CAS 1353951-67-3)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com