5-Methoxy-1H-inden-2(3H)-one CAS 76413-89-3
| CAS No. | 76413-89-3 |
| Molecular Formula | C10H10O2 |
| Molecular Weight | 162.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
5-Methoxy-1H-inden-2(3H)-one (CAS 76413-89-3) is a high-purity analytical reference standard with the molecular formula C10H10O2 and a molecular weight of 162.19 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-Methoxy-1H-inden-2(3H)-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 162.19 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).
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 | C10H10O2 |
| Molecular Weight | 162.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
Related Methoxy Standards
- 5-Methoxy-6-methyl-1H-pyrrolo[2,3-b]pyridine (CAS 1000340-90-8)
- 5-Methoxy-6-methyl-1H-indazole (CAS 1000343-61-2)
- 5-Methoxy-2-vinylbenzaldehyde (CAS 101466-49-3)
- 5-Methoxy-1-methylbenzimidazole (CAS 10394-39-5)
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- 4-Methoxy-3,5-dimethylpicolinonitrile (CAS 104916-41-8)
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- 4-Methoxy-7-methyl-1H-indazole (CAS 1082041-64-2)
Recommended Standards
- 5-Hydroxy-3,4-dihydronaphthalen-2(1H)-one (CAS 35697-10-0)
- 5-Methoxy-1H-indol-4-amine (CAS 431046-37-6)
- 5-hydroxy-6-methylindan-1-one (CAS 721948-91-0)
- 5-Methoxy-1-methylindazole (CAS 756839-44-8)
- 5-Cyclopentyl-1,2,3-thiadiazole-4-carboxylic acid (CAS 1484768-40-2)
- Ethyl 4-(3-ethoxy-3-oxopropyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate (CAS 54278-10-3)
- N'-(4,6-dimethyl-3-(1H-pyrrol-1-yl)thieno[2,3-b]pyridine-2-carbonyl)benzenesulfonohydrazide (CAS 478029-14-0)
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- 1-Ethyl-2,2-dimethylpiperazine dihydrochloride (CAS 1255718-11-6)
- 2,2,2-Trifluoroacetic acid compound with 7-azaspiro[3.5]nonane-2-carboxylic acid (1:1) (CAS 2173992-43-1)
- (S)-1-(5,6-dichloropyridin-3-yl)ethane-1,2-diol (CAS 1073617-83-0)
- 3-(4-Bromophenyl)piperazin-2-one (CAS 90841-19-3)
- 4-(2-Bromo-5-methoxyphenyl)butan-1-amine (CAS 1467481-62-4)
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