9-Hydroxyfuro[3,4-b]quinolin-1(3H)-one CAS 142471-90-7
| CAS No. | 142471-90-7 |
| Molecular Formula | C11H7NO3 |
| Molecular Weight | 201.18 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.
CATO supplies 9-Hydroxyfuro[3,4-b]quinolin-1(3H)-one (CAS 142471-90-7), a certified reference material (molecular formula C11H7NO3, MW 201.18 g/mol) for analytical method development and quality control.
The molecular framework of 9-Hydroxyfuro[3,4-b]quinolin-1(3H)-one (C11H7NO3) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C11H7NO3 |
| Molecular Weight | 201.18 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 methanol, ethanol, DMSO |
| 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.) | 1997 |
| Nitrogen Atoms | 1 |
Related Hydroxyfuro Standards
- Ethyl 3-Hydroxyfuro[2,3-c]pyridine-2-carboxylate (CAS 106531-50-4)
- Ethyl 3-hydroxyfuro[2,3-b]pyridine-2-carboxylate (CAS 109274-83-1)
- Ethyl 3-hydroxyfuro[3,2-c]pyridine-2-carboxylate (CAS 119293-22-0)
- Ethyl 5-hydroxyfuro[2,3-d]pyrimidine-6-carboxylate (CAS 1009333-94-1)
- Ethyl 7-hydroxyfuro[2,3-b]pyrazine-6-carboxylate (CAS 521948-36-7)
- Methyl 7-hydroxyfuro[2,3-b]pyrazine-6-carboxylate (CAS 521948-78-7)
- Methyl 3-hydroxyfuro[2,3-b]pyridine-2-carboxylate (CAS 881033-86-9)
- 111507-77-8 7-Hydroxyfuro[4,3,2-de]chromen-4(2H)-one 8805AC C10H6O4 (CAS 111507-77-8)
Recommended Standards
- 4-Nitro-2,2'-bipyridine (CAS 14162-93-7)
- methyl 6-cyanoimidazo[1,5-a]pyridine-1-carboxylate (CAS 1427419-15-5)
- 6-(Pyrimidin-5-yl)nicotinic acid (CAS 1400637-03-7)
- tert-Butyl 2,5-dioxooxazolidine-3-carboxylate (CAS 142955-50-8)
- 1-(6-Chloropyridin-3-yl)-4,4,4-trifluorobutane-1,3-dione (CAS 216317-65-6)
- 2-(4-(2-Amino-3-cyano-5-oxo-5,6,7,8-tetrahydro-4H-chromen-4-yl)phenoxy)-N-(3-nitrophenyl)acetamide (CAS 333778-08-8)
- 2-(4-Aminophenyl)-1-(morpholin-4-yl)ethan-1-one (CAS 926247-33-8)
- Ruthenium dichlorobis(triphenylphosphine)- (CAS 34076-51-2)
- 4-Methoxybenzoyl cyanide (CAS 14271-83-1)
- Vonoprazan Impurity 150 (CAS 312307-69-0)
- N-(4-Aminophenyl)-4-ethoxybenzamide (CAS 1016524-46-1)
- Lifitegrast Impurity 73 (CAS 2641788-18-1)
- 2-Chloro-N-[1-(1-methyl-1H-benzimidazol-2-yl)-ethyl]acetamide 2068AF 887573-34-4 C12H14ClN3O (CAS 887573-34-4)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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