2-Formyl-4H-furo[3,2-b]pyrrole-5-carboxylic acid CAS 164667-45-2
| CAS No. | 164667-45-2 |
| Molecular Formula | C8H5NO4 |
| Molecular Weight | 179.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Formyl-4H-furo[3,2-b]pyrrole-5-carboxylic acid (CAS 164667-45-2), molecular formula C8H5NO4 and molecular weight 179.13 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, 2-Formyl-4H-furo[3,2-b]pyrrole-5-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.13 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO manufactures 2-Formyl-4H-furo[3,2-b]pyrrole-5-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H5NO4 |
| Molecular Weight | 179.13 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 1 |
Related Formyl Standards
- 2-Formyl-6H-furo[2,3-b]pyrrole-5-carboxylic acid (CAS 263010-23-7)
- 2-Formyl-4-hydroxy-N-methylbenzamide (CAS 1243280-51-4)
- 3-Formyl-4-hydroxy-N-methylbenzamide (CAS 1243392-04-2)
- 3-Formyl-5-hydroxy-N-methylbenzamide (CAS 1243439-76-0)
- 4-Formyl-2-hydroxy-N-methylbenzamide (CAS 1243440-84-7)
- 4-Formyl-3-hydroxy-N-methylbenzamide (CAS 1243457-63-7)
- Methyl 5-formyl-3-methylpicolinate (CAS 1260672-61-4)
- Methyl 5-formyl-4-methylpicolinate (CAS 1263060-77-0)
Recommended Standards
- 7-Nitropyrrolo[1,2-a]pyrazin-1(2H)-one (CAS 1632286-28-2)
- 5-Oxo-8H-imidazo[1,2-a]pyrimidine-6-carboxylic acid (CAS 169298-54-8)
- 2-hydroxy-3H-imidazo[4,5-b]pyridine-7-carboxylic acid (CAS 1565404-86-5)
- 2-oxo-1H,2H,3H-imidazo[4,5-b]pyridine-5-carboxylic acid (CAS 1783316-82-4)
- 1-[5-Methyl-4-(tetramethyl-1,3,2-dioxaborolan-2-yl)thiophen-2-yl]propan-1-one (CAS 1777825-83-8)
- (3-Cyclopropyl-4-methoxyphenyl)boronic acid (CAS 2225175-44-8)
- 5-Chloro-1-isopropyl-1H-1,2,4-triazol-3(2H)-one (CAS 42509-62-6)
- 2-Cyclopentyl-2-(thiophen-3-yl)acetic acid (CAS 16199-73-8)
- 3-(4-Chloro-5-methyl-1h-pyrazol-1-yl)-2-(ethylamino)propanamide (CAS 1344093-51-1)
- (R)-Cetirizine Polyethylene Glycol Ester (CAS CATO-C4X-108356)
- 1,3,3-Trimethyl-2-methyleneindolin-5-amine (CAS 6872-05-5)
- Brexpiprazole Impurity 88 (CAS CATO-C4X-113188)
- Ethyl 2-(4-methyl-2-oxoquinolin-1(2H)-yl)acetate (CAS 103368-18-9)
- Semaglutide impurity 31 (CAS CATO-C4X-222631)
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