Dimethyl 4-hydroxy-5-methoxyphthalate CAS 50522-17-3
| CAS No. | 50522-17-3 |
| Molecular Formula | C11H12O6 |
| Molecular Weight | 240.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Dimethyl 4-hydroxy-5-methoxyphthalate (C11H12O6) 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 240.21 g/mol, it falls into the medium-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).
Dimethyl 4-hydroxy-5-methoxyphthalate (CAS 50522-17-3) is a high-purity analytical reference standard with the molecular formula C11H12O6 and a molecular weight of 240.21 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.
As a certified reference material (CRM), Dimethyl 4-hydroxy-5-methoxyphthalate 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 | C11H12O6 |
| Molecular Weight | 240.21 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.) | 1971 |
Related Dimethyl Standards
- Dimethyl 3-hydroxy-5-methoxyphthalate (CAS 24953-74-0)
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Recommended Standards
- Ethyl 2-(6-methoxy-3-nitropyridin-2-yl)acetate (CAS 450357-78-5)
- Diethyl 4-oxo-4H-pyran-2,6-dicarboxylate (CAS 725-92-8)
- Ethyl 2-(difluoromethyl)imidazo[1,2-a]pyridine-3-carboxylate (CAS 2451256-48-5)
- Diethyl 2-Oxo-1,2-dihydro-4,5-pyrimidinedicarboxylate (CAS 62328-19-2)
- Tert-butyl (1S,4S,6R)-6-amino-2-azabicyclo[2.2.1]Heptane-2-carboxylate (CAS 1932294-29-5)
- 2-Methyl-6-(4-methylpiperazin-1-yl)pyrimidin-4-amine (CAS 1104376-15-9)
- 4-(But-3-en-1-yl)-4'-methyl-1,1'-biphenyl (CAS 117713-14-1)
- Benzyl cyclopropyl((1-(2-hydroxyethyl)piperidin-4-yl)methyl)carbamate (CAS 1353961-78-0)
- 1-(4-(1-Ethyl-1h-pyrazol-4-yl)-6-(trifluoromethyl)pyrimidin-2-yl)piperidin-4-amine (CAS 1171317-51-3)
- Ethyl 2-amino-5-bromonicotinate (CAS 433226-06-3)
- 4-(2,5-Difluorophenyl)-4,5,6,7-tetrahydro-3h-imidazo[4,5-c]pyridine (CAS 1010898-10-8)
- (3,4-Dihydro-2H-pyran-6-yl)methanamine (CAS 7180-00-9)
- 3-Cyanochromone 4-Oxo-4H-1-benzopyran-3-carbonitrile 50743-17-4 C3075 Chromone-3-carbonitrile (CAS 50743-17-4)
- Tirzepatide Impurity 61 (CAS CATO-C4X-324061)
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