1,2,3-Trimethoxy-5-methylbenzene CAS 6443-69-2
| CAS No. | 6443-69-2 |
| Molecular Formula | C10H14O3 |
| Molecular Weight | 182.22 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.
1,2,3-Trimethoxy-5-methylbenzene (CAS 6443-69-2), molecular formula C10H14O3 and molecular weight 182.22 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1,2,3-Trimethoxy-5-methylbenzene (C10H14O3) 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 its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H14O3 |
| Molecular Weight | 182.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Trimethoxy Standards
- 1,2,3-Trimethoxy-4-methylbenzene (CAS 33257-15-7)
- 1,3,5-Trimethoxy-2-methylbenzene (CAS 14107-97-2)
- Trimethoxy(oxiran-2-ylmethyl)silane (CAS 20222-57-5)
- 1,1,1-Trimethoxy-2-(propan-2-yloxy)ethane (CAS 1216220-50-6)
- 3,4,5-Trimethoxy-1H-pyrrol-2(5H)-one (CAS 177087-48-8)
- Trimethoxy(pentyl)silane (CAS 2996-95-4)
- 1,3,5-Trimethoxy-<SUP>13</SUP>C<SUB>3</SUB>-benzene (CAS 1622142-76-0)
- 2,4,6-Trimethoxy-1,3,5-Triazine (CAS 877-89-4)
Recommended Standards
- 4-Pentenoic anhydride 63521-92-6 pent-4-enoic anhydride (CAS 63521-92-6)
- 878617-56-2 1-[(4-Methyl-1,2,5-oxadiazol-3-yl)methyl]piperazine MFCD01346601 (CAS 878617-56-2)
- 1,4-Dihydro-6-methylquinoxaline-2,3-dione 6-Methyl-1,4-dihydroquinoxaline-2,3-dione 6-Methylquinoxaline-2,3-diol 6309-61-1 D2970 (CAS 6309-61-1)
- 2-Ethyl-5-isopropyl-2H-pyrazole-3-carboxylic acid 4373AF 956397-13-0 C9H14N2O2 (CAS 956397-13-0)
- Tert-butyl (2-hydroxy-1-(tetrahydro-2h-pyran-3-yl)ethyl)carbamate (CAS 1398503-95-1)
- Pyridin-4-yl(tetrahydro-2H-pyran-4-yl)methanol (CAS 1344003-65-1)
- Methyl 2-chloro-4-[3-(cyclopropylcarbamoyl)phenyl]benzoate (CAS 1820604-36-1)
- 1-(2-Ethoxybenzyl)piperidin-4-amine (CAS 725212-28-2)
- (9H-Fluoren-9-yl)methyl (1-((2R,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-2-oxo-1,2-dihydropyrimidin-4-yl)carbamate (CAS 87424-19-9)
- 3-(Furan-2-yl)isoxazole (CAS 651059-65-3)
- 2-Bromo-3-(2,6-dimethoxyphenyl)-1-propene (CAS 951891-27-3)
- 7-Ethynyl-1H-pyrazolo[3,4-c]pyridine (CAS 1374651-96-3)
- 5-(1-(4-Chlorophenoxy)ethyl)-1-(phenylsulfonyl)-1H-pyrazole (CAS 321999-03-5)
- Endo-Gly4-Semaglutide (CAS CATO-C4X-222679)
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