4-Oxo-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-2-carboxylic acid CAS 1557547-88-2
| CAS No. | 1557547-88-2 |
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4-Oxo-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-2-carboxylic acid 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.
4-Oxo-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-2-carboxylic acid (CAS 1557547-88-2), molecular formula C8H7NO4 and molecular weight 181.15 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Oxo-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-2-carboxylic acid (C8H7NO4) 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 the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H7NO4 |
| Molecular Weight | 181.15 g/mol |
| Appearance | Off-white to pale 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 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 1 |
Related Oxo Standards
- 4-Oxo-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-3-carboxylic acid (CAS 1547038-31-2)
- Methyl 4,5,6,7-tetrahydrofuro[2,3-c]pyridine-3-carboxylate (CAS 1211582-20-5)
- 5-Methyl-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-2-carboxylic acid (CAS 1368335-11-8)
- 6-Methyl-4,5,6,7-tetrahydrofuro[2,3-c]pyridine-2-carboxylic acid (CAS 792174-74-4)
- (6-Methyl-4,5,6,7-tetrahydrofuro[2,3-c]pyridin-2-yl)methanol (CAS 131169-31-8)
- 4,5,6,7-Tetrahydrofuro[3,2-c]pyridine-2-carboxylic acid (CAS 1368140-82-2)
- 2,3,6,7-tetrahydrofuro[2,3-f]benzofuran-4-carbaldehyde (CAS 178557-13-6)
- 4-Oxo-4,5,6,7-tetrahydrofuro[3,2-c]pyridine-2-carbaldehyde (CAS 1710293-81-4)
Recommended Standards
- 4-Nitrobenzamidoxime (CAS 1613-86-1)
- 3-Formamido-4-Hydroxybenzoic Acid (CAS 15026-75-2)
- 2-Amino-5-nitrobenzamide (CAS 16313-65-8)
- 6-(Carboxymethyl)pyridine-2-carboxylic acid (CAS 1451194-10-7)
- Benzo[b]benzo[4,5]thieno[2,3-d]thiophene (CAS 248-70-4)
- 32137-38-5 1-(1-Naphthyl)-1-propyne DTXSID90452933 (CAS 32137-38-5)
- 5,5'-((Thiobis(4,1-phenylene))bis(oxy))bis(isobenzofuran-1,3-dione) (CAS 52256-85-6)
- 1-[(4-Methyl-1,3-thiazol-2-yl)methyl]piperazine hydrochloride (CAS 1351642-23-3)
- 4-Methoxy-trans-stilbene (CAS 1694-19-5)
- Methyl 3-amino-6-(2H-1,3-benzodioxol-5-yl)-4-(trifluoromethyl)thieno[2,3-b]pyridine-2-carboxylate (CAS 625377-31-3)
- 5-(Chloromethyl)-2-cyclopropylpyridine (CAS 792857-76-2)
- 1-(2,2-Dimethyltetrahydro-2H-pyran-4-yl)ethan-1-one (CAS 70986-52-6)
- Enzalutamide Impurity 37 (CAS 1705583-65-8)
- D-Val23-Tirzepatide (CAS CATO-CPTD788911)
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