Ethyl 2-(7-Nitro-3-indolyl)-2-oxoacetate CAS 1770125-30-8
| CAS No. | 1770125-30-8 |
| Molecular Formula | C12H10N2O5 |
| Molecular Weight | 262.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 2-(7-Nitro-3-indolyl)-2-oxoacetate.
Ethyl 2-(7-Nitro-3-indolyl)-2-oxoacetate (CAS 1770125-30-8), molecular formula C12H10N2O5 and molecular weight 262.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 2-(7-Nitro-3-indolyl)-2-oxoacetate (C12H10N2O5) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 262.22 g/mol, it falls into the medium-molecular-weight range. 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), Ethyl 2-(7-Nitro-3-indolyl)-2-oxoacetate 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 | C12H10N2O5 |
| Molecular Weight | 262.22 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 2 |
Related Ethyl Standards
- 3-Nitro-1-[2-(4-nitrophenyl)ethyl]-1h-pyrazole (CAS 1240568-27-7)
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- Ethyl 6-nitro-4-oxo-1,4-dihydroquinoline-3-carboxylate (CAS 175087-43-1)
- 2-(4-Nitro-3-oxobutyl)isoindoline-1,3-dione (CAS 2674-65-9)
- 3-(4-Nitro-phenyl)-isoxazole-5-carboxylic acid ethyl ester (CAS 370848-42-3)
- 4-((3-Nitro-1h-1,2,4-triazol-1-yl)methyl)benzohydrazide (CAS 832741-16-9)
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Recommended Standards
- 3-(2-Acetamido-5-nitrophenyl)-5-methyl-1,2,4-oxadiazole (CAS 1965304-80-6)
- Methyl 4-methoxy-6-nitroquinoline-2-carboxylate (CAS 169831-75-8)
- (2-(1,3-Dioxoisoindolin-2-yl)acetyl)glycine (CAS 3916-40-3)
- Ethyl 5-(4-Nitrophenyl)isoxazole-3-carboxylate (CAS 159670-70-9)
- 8-hydroxy-1,6-naphthyridine-7-carboxylic acid (CAS 410542-70-0)
- 7-Methylimidazo[1,2-a]pyridine-2-carbaldehyde (CAS 202348-54-7)
- ethyl 5-[3-(aminomethyl)phenyl]-1,2,4-oxadiazole-3-carboxylate hydrochloride (CAS 1798702-20-1)
- 1,3-Dimethylimidazolidine-2-thione (CAS 13461-16-0)
- 6-{morpholin-4-yl[4-(trifluoromethyl)phenyl]methyl}-1,3-dioxaindan-5-ol (CAS 289657-30-3)
- 2-(Buta-1,3-dien-1-yl)-1,3,5-trimethylbenzene (CAS 5732-00-3)
- 5,5-Diphenyl-3-(phenylamino)-2-thioxooxazolidin-4-one (CAS 88051-68-7)
- 4-Chloro-2,3-difluoro-5-(methoxymethoxy)benzaldehyde (CAS 2145093-95-2)
- 2,3-Dihydroxyfumaric acid dihydrate (CAS 20688-70-4)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
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