3-(2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indol-1-yl)indolin-2-one CAS 879771-67-2
| CAS No. | 879771-67-2 |
| Molecular Formula | C19H17N3O |
| Molecular Weight | 303.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indol-1-yl)indolin-2-one (CAS 879771-67-2), molecular formula C19H17N3O and molecular weight 303.36 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, 3-(2,3,4,9-Tetrahydro-1H-pyrido[3,4-b]indol-1-yl)indolin-2-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 303.36 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).
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 | C19H17N3O |
| Molecular Weight | 303.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 2-Methyl-4-[(4-methylphenyl)methyl]-4H,5H-pyrazolo[1,5-a]quinazolin-5-one (CAS 866050-24-0)
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- 2-Amino-N-(4-(phenylamino)phenyl)benzamide (CAS 24565-03-5)
- 3-(4-Ethoxyphenyl)hexahydro-1H-pyridazino[1,2-a][1,2,5]triazepine-1,5(2H)-dione (CAS 69405-19-2)
- 2-(Trimethylsilyl)thiophene (CAS 18245-28-8)
- 3,5-Diisopropylisoxazole-4-carboxylic acid (CAS 875827-18-2)
- Trap 101 (CAS 1216621-00-9)
- A 844606 (CAS 861119-08-6)
- n-Methyl-2-(2-propanoylphenoxy)acetamide (CAS 1016877-69-2)
- (6-Bromoimidazo[1,2-a]pyridin-3-yl)methanamine (CAS 944896-36-0)
- 5-(4-Fluoro-2-hydroxyphenyl)furan-2-carbaldehyde (CAS 900515-33-5)
- Tetramethylthiuram Monosulfide (CAS 97-74-5)
- 2-((2-Oxopropyl)thio)-3-phenylquinazolin-4(3H)-one (CAS 18741-31-6)
- Ac, Gastrin Releasing Peptide (20-27), porcine (CAS 77714-20-6)
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