2-Hydroxychroman-4-one CAS 57669-32-6
| CAS No. | 57669-32-6 |
| Molecular Formula | C9H8O3 |
| Molecular Weight | 164.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Hydroxychroman-4-one is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-Hydroxychroman-4-one (CAS 57669-32-6), molecular formula C9H8O3 and molecular weight 164.16 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Hydroxychroman-4-one (C9H8O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 164.16 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 2-Hydroxychroman-4-one 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.
Physical & Chemical Properties
| Molecular Formula | C9H8O3 |
| Molecular Weight | 164.16 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
Related Hydroxychroman Standards
- 5-Hydroxychroman-4-one (CAS 13849-19-9)
- 8-Hydroxychroman-4-one (CAS 1843-90-9)
- 3-Hydroxychroman-4-one (CAS 74736-89-3)
- 6-Hydroxychroman-2-one (CAS 2669-94-5)
- 6-Hydroxychroman-4-one (CAS 80096-64-6)
- 7-hydroxychroman-2-one (CAS 5631-67-4)
- 7-Hydroxychroman-4-one, 97% (CAS 76240-27-2)
- 1-(7-Hydroxychroman-8-yl)ethan-1-one (CAS 1180507-57-6)
Recommended Standards
- 2-Hydroxy-7,8-dihydroquinazolin-5(6H)-one (CAS 21599-39-3)
- 2-Methoxy-1-methyl-1H-purine (CAS 61078-15-7)
- 2H-Benzo[b][1,4]dioxepin-3(4H)-one (CAS 27612-17-5)
- 2-methyl-2H-pyrido[3,2-b][1,4]oxazin-3(4H)-one (CAS 20348-19-0)
- 5-Ethoxy-2-(p-tolyl)oxazole (CAS 477867-63-3)
- 4-Methyl-3-(methylsulfanyl)aniline (CAS 98594-08-2)
- 2-(3-(Dimethylamino)propyl)-1,3-dioxoisoindoline-5-carboxylic acid (CAS 211932-34-2)
- Methyl 3-hydroxy-5-methylbenzofuran-2-carboxylate (CAS 1173425-05-2)
- N,1-bis(2,4-difluorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 321431-60-1)
- DOLASTATIN 10 (CAS 110417-88-4)
- (R)-N-cyclopropyl-N-(1-methylpyrrolidin-3-yl)glycine (CAS 1354001-93-6)
- 1-(2,6-Dimethoxyphenyl)propan-1-one (CAS 3840-02-6)
- N-(9-Fluorenylmethoxycarbonyl) Doxorubicin (CAS 136582-53-1)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
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