1-Ethyl-2,3-dioxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile CAS 517919-00-5
| CAS No. | 517919-00-5 |
| Molecular Formula | C10H7N3O2 |
| Molecular Weight | 201.18 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 1-Ethyl-2,3-dioxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile.
CATO supplies 1-Ethyl-2,3-dioxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile (CAS 517919-00-5), a certified reference material (molecular formula C10H7N3O2, MW 201.18 g/mol) for analytical method development and quality control.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 1-Ethyl-2,3-dioxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.18 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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), 1-Ethyl-2,3-dioxo-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-5-carbonitrile 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 | C10H7N3O2 |
| Molecular Weight | 201.18 g/mol |
| Appearance | Pale yellow to 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 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.) | 1984 |
| Nitrogen Atoms | 3 |
Related Ethyl Standards
- 3-(2,5-Dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzaldehyde (CAS 76620-02-5)
- 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzaldehyde (CAS 32487-80-2)
- 2-[(1,3-Dioxo-2,3-dihydro-1H-isoindol-2-yl)oxy]acetonitrile (CAS 75372-44-0)
- 2-(2,5-Dioxo-1-propylimidazolidin-4-yl)acetic acid (CAS 1008961-08-7)
- 2-(2,5-dioxo-4-propylimidazolidin-1-yl)acetic acid (CAS 1104234-46-9)
- 3-(4-Methyl-3,6-dioxo-2-piperazinyl)propanoic acid (CAS 1822599-52-9)
- 2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)propanenitrile (CAS 91135-57-8)
- 3-(2,3-Dioxo-2,3-dihydro-1H-indol-1-yl)-propanenitrile (CAS 253786-56-0)
Recommended Standards
- 1-Amino-[1,2,4]triazolo[4,3-a]quinazolin-5(3H)-one (CAS 404578-73-0)
- 1H,3H,4H-[1,4]oxazino[4,3-a]indole-1,3-dione (CAS 855401-44-4)
- 1,8-Dihydro-Pyrrolo[3,2-g]indazole-3-carboxylic acid (CAS 865886-90-4)
- 1H-1,2,4-Triazole,1-Beta-D-ribofuranosyl (CAS 24806-93-7)
- 2-Chloro-3-ethynyl-5-(trifluoromethyl)pyridine (CAS 1211536-59-2)
- 2-chloro-N-(3-methoxyphenyl)-7H-purin-6-amine (CAS 190654-89-8)
- 3-[2-[2-[2-[2-(9-bicyclo[6.1.0]non-4-ynylmethoxycarbonylamino)ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid (CAS 2226472-38-2)
- 2,7-Dimethyl-2,3-dihydro-1h-inden-1-one (CAS 89044-49-5)
- N-Butyl-N-(4-methyloxazol-2-yl)heptanamide (CAS 57068-86-7)
- 8-Methyl-3,4-dihydroquinazolin-4-one (CAS 19181-54-5)
- tert-Butyl 3-(2,6-diamino-4-(trifluoromethyl)phenoxy)pyrrolidine-1-carboxylate (CAS 1159826-37-5)
- 3-Oxa-1-azaspiro[4.4]nonane-2,4-dione (CAS 3253-44-9)
- 2,6-Dichloro-N1-(3-(dimethylamino)propyl)benzene-1,4-diamine (CAS 1693685-57-2)
- Semaglutide impurity 196 (CAS CATO-C4X-2226196)
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