2-Hydroxy-3-methylcyclohexa-2,5-diene-1,4-dione CAS 2913-48-6
| CAS No. | 2913-48-6 |
| Molecular Formula | C7H6O3 |
| Molecular Weight | 138.12 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Hydroxy-3-methylcyclohexa-2,5-diene-1,4-dione (CAS 2913-48-6), molecular formula C7H6O3 and molecular weight 138.12 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Hydroxy-3-methylcyclohexa-2,5-diene-1,4-dione (C7H6O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 138.12 g/mol, it falls into the low-molecular-weight range. 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).
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 | 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-5-methylcyclohexa-2,5-diene-1,4-dione (CAS 615-91-8)
- 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)
- N-hydroxy-2-pyridinecarboxamide (CAS 31888-72-9)
- 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-Acetylpyrimidin-4(1H)-one (CAS 475486-89-6)
- 2-Acetylcyclopent-4-ene-1,3-dione (CAS 4056-67-1)
- 2-Hydroxynicotinamide (CAS 94083-12-2)
- Vitamin B1 (CAS 59-43-8)
- 1-(2,5-Dihydroxyphenyl)-3-phenylprop-2-en-1-one (CAS 19312-13-1)
- 2-(6-Bromo-3-(difluoromethyl)-5-fluoropyridin-2-yl)acetonitrile (CAS 1805397-82-3)
- Desocodeine (CAS 3990-01-0)
- cis-4-(4-Methylbenzoyl)cyclohexane-1-carboxylic acid (CAS 735269-91-7)
- 6-Bromo-1-methyl-1H-pyrazolo[4,3-b]pyridin-3-amine (CAS 2007915-41-3)
- ((1S,4s)-4-methoxycyclohexyl)methanamine (CAS 68538-30-7)
- 3-(1-Hydroxy-2-methylpropan-2-yl)cyclobutan-1-one (CAS 2357390-37-3)
- 2-(Tert-butyl)imidazo[1,2-a]pyridine-7-carboxylic acid (CAS 1494847-56-1)
- Semaglutide Impurity 158 (x TFA Salt) (CAS CATO-C4X-2226158)
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