3,4-Dihydroxy-5-methylbenzaldehyde CAS 82628-68-0
| CAS No. | 82628-68-0 |
| Molecular Formula | C8H8O3 |
| Molecular Weight | 152.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,4-Dihydroxy-5-methylbenzaldehyde (CAS 82628-68-0), molecular formula C8H8O3 and molecular weight 152.15 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3,4-Dihydroxy-5-methylbenzaldehyde (C8H8O3) 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).
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 | C8H8O3 |
| Molecular Weight | 152.15 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.) | 1980 |
Related Dihydroxy Standards
- 2,5-Dihydroxy-3-methylbenzaldehyde (CAS 108372-60-7)
- 2,3-Dihydroxy-4-methylbenzaldehyde (CAS 6053-03-8)
- 2,4-Dihydroxy-5-methylbenzaldehyde (CAS 39828-37-0)
- 2,5-Dihydroxy-4-methylbenzaldehyde (CAS 52010-89-6)
- 3,4-Dihydroxy-2-methylbenzaldehyde (CAS 88122-12-7)
- 2,4-Dihydroxy-6-methylbenzaldehyde (CAS 487-69-4)
- 2,4-Dihydroxy-3-methylbenzaldehyde (CAS 6248-20-0)
- 2,6-Dihydroxy-4-methylbenzaldehyde (CAS 526-37-4)
Recommended Standards
- 3,4-Dimethyl-2-nitropyridine (CAS 65169-29-1)
- 3-(Pyrimidin-5-yl)propanoic acid (CAS 933682-83-8)
- 3,4-Dimethyl-5-nitropyridine (CAS 65169-36-0)
- 3-(Pyrimidin-2-yl)propanoic acid (CAS 439108-20-0)
- N-([1,1'-Biphenyl]-2-yl)naphtho[2,3-b]benzofuran-3-amine (CAS 2768290-29-3)
- 4-(2-(Trifluoromethyl)-1H-benzo[d]imidazol-1-yl)butanoic acid (CAS 876728-42-6)
- N-(2-fluoro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-2-morpholinoacetamide (CAS 1704121-22-1)
- (1-Methyl-4-piperidinyl)-3-pyridinyl-methanone (CAS 416852-56-7)
- 2,4-Dichloro-5-(pyrrolidin-1-yl)pyrimidine (CAS 1197226-50-8)
- Benzylpenicilloic Acid Benzathide (CAS CATO-C4X-144325)
- Dimethyl 2-Methoxyphenoxymalonate (CAS 150726-89-9)
- Tert-butyl ((6-azaspiro[3.5]Nonan-2-yl)methyl)carbamate (CAS 1440961-64-7)
- Fasudil Impurity 6 (CAS 2044706-58-1)
- [D-His1]-Semaglutide (CAS CATO-C4X-2226127)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com