2-Hydroxy-5-methylcyclohexa-2,5-diene-1,4-dione CAS 615-91-8
| CAS No. | 615-91-8 |
| Molecular Formula | C7H6O3 |
| Molecular Weight | 138.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 2-Hydroxy-5-methylcyclohexa-2,5-diene-1,4-dione (C7H6O3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
2-Hydroxy-5-methylcyclohexa-2,5-diene-1,4-dione (CAS 615-91-8) is a high-purity analytical reference standard with the molecular formula C7H6O3 and a molecular weight of 138.12 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H6O3 |
| Molecular Weight | 138.12 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Hydroxy Standards
- 2-Hydroxy-3-methylcyclohexa-2,5-diene-1,4-dione (CAS 2913-48-6)
- 2-Hydroxy-6-methylcyclohexa-2,5-diene-1,4-dione (CAS 2446-75-5)
- 3-Hydroxy-2-vinyl-4H-pyran-4-one (CAS 4940-21-0)
- 5-Hydroxy-2-pyridinecarboxamide (CAS 896419-97-9)
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- 2-Hydroxy-2-(1-methyl-1H-1,2,3-triazol-4-yl)acetonitrile (CAS 1355188-99-6)
- N-Hydroxy-N-(pyrimidin-4-yl)formimidamide (CAS 62260-37-1)
- 4-Hydroxy-1,2-oxathiolane 2,2-dioxide (CAS 10200-48-3)
Recommended Standards
- 2-Amino Nicotinic Acid (CAS 5345-47-1)
- 2-Hydroxynicotinamide (CAS 94083-12-2)
- 2-Acetylpyrimidin-4(1H)-one (CAS 475486-89-6)
- 2-Methoxy-5-pyrimidinecarbaldehyde (CAS 90905-32-1)
- 4-N-butyl-2-methylphenylisothiocyanate (CAS 175205-37-5)
- 2-(5,6-Dibromo-1,3-dioxooctahydro-2H-4,7-methanoisoindol-2-yl)-3-phenylpropanoic acid (CAS 386702-34-7)
- 2-Bromo-N,N-dicyclohexylacetamide (CAS 54700-62-8)
- (2,2'-bipyridyl)dichloroplatinum(II) (CAS 13965-31-6)
- Canagliflozin Impurity 40 (CAS 1030825-20-7)
- 5,6-Difluoro-2,3-dihydro-1H-isoindol-1-one (CAS 1192040-50-8)
- 959238-10-9 2-(2-Methoxyethyl)morpholine DTXSID10543110 (CAS 959238-10-9)
- (E,E)-Farnesol Benzyl Ether (CAS 56506-81-1)
- Anidulafungin Side Chain Methyl Ester (CAS 158937-30-5)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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