2-(4-Hydroxyphenyl)-5-oxotetrahydrofuran-3-carboxylic acid CAS 1399684-43-5
| CAS No. | 1399684-43-5 |
| Molecular Formula | C11H10O5 |
| Molecular Weight | 222.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(4-Hydroxyphenyl)-5-oxotetrahydrofuran-3-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.
2-(4-Hydroxyphenyl)-5-oxotetrahydrofuran-3-carboxylic acid (CAS 1399684-43-5), molecular formula C11H10O5 and molecular weight 222.19 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-(4-Hydroxyphenyl)-5-oxotetrahydrofuran-3-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 222.19 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).
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 | C11H10O5 |
| Molecular Weight | 222.19 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
Related Hydroxyphenyl Standards
- 2-(3-Hydroxyphenyl)-5-oxotetrahydrofuran-3-carboxylic acid (CAS 1399663-17-2)
- 3-(4-Hydroxyphenyl)pent-2-enedioic acid (CAS 50670-02-5)
- methyl 4-(2-hydroxyphenyl)-2,4-dioxobutanoate (CAS 55386-79-3)
- methyl 4-(3-hydroxyphenyl)-2,4-dioxobutanoate (CAS 60640-63-3)
- Methyl 4-(4-hydroxyphenyl)-2,4-dioxobutanoate (CAS 39757-33-0)
- 5-(4-Hydroxyphenyl)pyrazine-2,3-dicarbonitrile (CAS 67823-04-5)
- 4-(4-Hydroxyphenyl)tetrahydro-2H-pyran-4-carboxylic acid (CAS 1208920-16-4)
- N-(2-Hydroxyphenyl)morpholine-3-carboxamide (CAS 1483057-52-8)
Recommended Standards
- 5,6-Dimethoxy-2-methylbenzofuran-4,7-dione (CAS 158204-26-3)
- 2-(3-Formyl-5-(methoxycarbonyl)phenyl)acetic acid (CAS 1393585-56-2)
- Dimethyl (1R,2R)-4,4-difluorocyclopentane-1,2-dicarboxylate (CAS 1608143-72-1)
- 2-Hydroxy-2-((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)acetaldehyde (CAS 136670-93-4)
- (R)-1-(3-((2-Hydroxyethyl)(isopropyl)amino)pyrrolidin-1-yl)ethanone (CAS 1353997-86-0)
- 4-((5-Chloro-4-methoxypyridin-2-yl)amino)-4-oxobutanoic acid (CAS 1427782-19-1)
- 4-Chlorobenzo[d]oxazole-2-acrylic acid (CAS 1803426-82-5)
- 1-(3-Bromophenyl)-1H-pyrazole (CAS 294877-33-1)
- 2-(2-Chloro-4-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1806766-95-9)
- 2-(bromomethyl)-1-oxaspiro[4.4]nonane (CAS 100238-92-4)
- 1-(3-(Tert-butyl)-1-methyl-1h-1,2,4-triazol-5-yl)-2-methylpropan-1-amine (CAS 1339521-46-8)
- 7-Bromo-6-chloro-1H-indazole (CAS 1427361-92-9)
- N-(1,1-Dioxidotetrahydro-3-thienyl)-β-alanine Hydrochloride (CAS 297760-52-2)
- Liraglutide-d8 Tetratrifluoroacetate (CAS 204656-20-2 (non-labelled, free base))
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