3,5-Dihydroxy-4-methoxybenzoic acid CAS 4319-02-2
| CAS No. | 4319-02-2 |
| Molecular Formula | C8H8O5 |
| Molecular Weight | 184.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3,5-Dihydroxy-4-methoxybenzoic acid (C8H8O5) 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 184.15 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).
CATO supplies 3,5-Dihydroxy-4-methoxybenzoic acid (CAS 4319-02-2), a certified reference material (molecular formula C8H8O5, MW 184.15 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3,5-Dihydroxy-4-methoxybenzoic 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.
Physical & Chemical Properties
| Molecular Formula | C8H8O5 |
| Molecular Weight | 184.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| 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.) | 1958 |
Related Dihydroxy Standards
- 3,6-Dihydroxy-2-methoxybenzoic acid (CAS 118303-91-6)
- 3,5-Dihydroxy-2-methoxybenzoic acid (CAS 1379187-95-7)
- 2,3-Dihydroxy-6-methoxybenzoic acid (CAS 148460-90-6)
- 2,3-Dihydroxy-4-methoxybenzoic acid (CAS 3934-81-4)
- 2,4-Dihydroxy-3-methoxybenzoic acid (CAS 90111-50-5)
- 2,5-Dihydroxy-3-methoxybenzoic acid (CAS 5981-38-4)
- Methyl 2,4-dihydroxy-6-methylpyrimidine-5-carboxylate (CAS 869891-41-8)
- Methyl 5,6-Dihydroxy-2-methylpyrimidine-4-carboxylate (CAS 878158-18-0)
Recommended Standards
- 4-Methyl-6-(methylamino)-5-nitropyrimidin-2(1H)-one (CAS 5177-15-1)
- 5-(Difluoromethyl)pyrazolo[1,5-a]pyrimidin-3-amine (CAS 2573213-97-3)
- 4-methyl-4H-pyran-2,6-dicarboxylic acid (CAS 23046-94-8)
- 5-(Ethoxycarbonyl)-1H-imidazole-4-carboxylic acid (CAS 99821-97-3)
- N-((1H-Benzo[d]imidazol-2-yl)methyl)-2-(2-((6-methylpyridin-2-yl)amino)thiazol-4-yl)acetamide (CAS 1226439-78-6)
- tert-Butyl 5-oxo-1,4,9-triazaspiro[5.5]undecane-1-carboxylate (CAS 1383575-15-2)
- 3-Methyl-5-oxopyrrolidine-3-carboxylic acid (CAS 1508803-85-7)
- 6-bromo-2-(4-chlorophenyl)imidazo[1,2-a]pyridine (CAS 452967-47-4)
- N-Methyl-N,5-diphenyloxazole-2-carboxamide (CAS 955674-62-1)
- 3-(3,4-Dimethylphenoxy)azetidine (CAS 1219982-87-2)
- 7-Nitroquinazoline (CAS 7557-00-8)
- Teriparatide Acetate (CAS CATO-C4X-2185)
- 6-(2-Cyanopropan-2-yl)picolinic acid (CAS 878744-16-2)
- Des-[Oct-γ-Glu-AEEA-AEEA]-Semaglutide (CAS CATO-C4X-2226112)
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