4-(1h-Indol-3-yl)-4-oxobutanoicacid CAS 835-45-0
| CAS No. | 835-45-0 |
| Molecular Formula | C12H11NO3 |
| Molecular Weight | 217.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(1h-Indol-3-yl)-4-oxobutanoicacid (C12H11NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 217.22 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4-(1h-Indol-3-yl)-4-oxobutanoicacid (CAS 835-45-0), molecular formula C12H11NO3 and molecular weight 217.22 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C12H11NO3 |
| Molecular Weight | 217.22 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related h Standards
- 2-(1H-Indol-3-yl)-2-oxoethyl acetate (CAS 5471-73-8)
- 2-(1H-Indol-3-yl)acetic acetic anhydride (CAS 847800-56-0)
- 5-(1H-Indol-3-yl)-1,3,4-oxadiazole-2(3H)-thione (CAS 379725-80-1)
- 5-(1h-Indol-3-yl)pentanoic acid (CAS 1210-84-0)
- 3-(1h-Indol-3-yl)-3-methylbutanoic acid (CAS 1248550-02-8)
- 5-(1H-Indol-1-yl)pentanoic acid (CAS 143217-45-2)
- 2H-Indol-2-one, 1,3-dihydro-3-(tetrahydro-2H-pyran-4-yl)- (CAS 1956322-70-5)
- 2-(1H-Indol-3-yl)pentanoic acid (CAS 91957-23-2)
Recommended Standards
- 4-(1,3-Dioxoisoindol-2-yl)butanal (CAS 3598-60-5)
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- 4-((Cyclopropylmethyl)amino)-3-nitrobenzonitrile (CAS 474019-77-7)
- 4-(3,5-Dimethylisoxazol-4-yl)benzoic acid (CAS 212515-76-9)
- 2-Phenethylphenol (CAS 7294-84-0)
- 5-Amino-3-bromo-6-chloropyrazine-2-carboxylic acid (CAS 1936595-24-2)
- 1-[(4-Chloro-3-nitrophenyl)sulfonyl]-3-methylpiperidine (CAS 415701-07-4)
- 2-(Pyridin-3-yl)-1,3-benzoxazol-5-amine (CAS 61382-21-6)
- (5-Chloro-4-(trifluoromethyl)pyridin-2-yl)methanamine (CAS 1393561-10-8)
- 2-((2-Isopropyl-5-methylcyclohexyl)oxy)ethan-1-ol (CAS 38618-23-4)
- 4,4,5,5-Tetramethyl-2-(6-methyl-1-cyclohexen-1-yl)-1,3,2-dioxaborolane (CAS 448211-44-7)
- 6-(4-Hydroxypiperidine-1-carbonyl)pyridazin-3(2H)-one (CAS 174901-78-1)
- 2-((Ethylthio)methyl)-1H-benzo[d]imidazole (CAS 99069-37-1)
- Allo-D-Ile27-Tirzepatide (CAS CATO-CPTD788961)
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