1,3-Diethoxy-2-methylbenzene CAS 6972-63-0
| CAS No. | 6972-63-0 |
| Molecular Formula | C11H16O2 |
| Molecular Weight | 180.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3-Diethoxy-2-methylbenzene (CAS 6972-63-0), molecular formula C11H16O2 and molecular weight 180.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,3-Diethoxy-2-methylbenzene (C11H16O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 180.24 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).
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.
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 | C11H16O2 |
| Molecular Weight | 180.24 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
Related Diethoxy Standards
- 1,4-Diethoxy-2-methylbenzene (CAS 41901-72-8)
- 1,1-Diethoxy-2-methanesulfinylethane (CAS 1344048-22-1)
- 2,4-Diethoxy-6-methylpyrimidine (CAS 55816-92-7)
- 4,6-Diethoxy-2-methylpyrimidine (CAS 28824-75-1)
- 4,6-Diethoxy-5-pyrimidinamine (CAS 75438-83-4)
- 1,1-Diethoxy-3-(methylamino)propan-2-ol (CAS 98545-00-7)
- 1,2-Diethoxy-3-fluorobenzene (CAS 226555-35-7)
- 2,4-Diethoxy-1-fluorobenzene (CAS 851089-61-7)
Recommended Standards
- 1,3-Dicyclobutylpropane-1,3-dione (CAS 2138364-29-9)
- 1,3-dimethoxy-5-propyl-benzene (CAS 41395-10-2)
- 1,2-Dimethoxy-4-propylbenzene (CAS 5888-52-8)
- 1,4,7,7-Tetramethylbicyclo[2.2.1]heptane-2,3-dione (CAS 62292-65-3)
- 2-(2,5-Dibromo-4-(difluoromethyl)pyridin-3-yl)acetonitrile (CAS 1805318-88-0)
- 4-((4-Chlorophenyl)thio)-2-phenyl-N-(3-(trifluoromethyl)phenyl)pyrimidine-5-carboxamide (CAS 400076-30-4)
- 5-Chloro-7-methoxythieno[3,2-b]pyridine (CAS 90690-91-8)
- 4-Methyl-2-((methylamino)methyl)phenol (CAS 237431-66-2)
- 1-(4-Cyanophenyl)-3-oxocyclobutane-1-carboxylic acid (CAS 2229311-14-0)
- 5-Bromo-4-methyl-2-nitroanisole (CAS 1089281-86-6)
- 5-Chloro-8-nitroquinazolin-4-ol (CAS 400784-50-1)
- 3-Bromo-4-hydroxy-5-iodobenzonitrile (CAS 3336-26-3)
- N4-(3-Chloro-4-fluorophenyl)-7-(3-morpholinopropoxy)quinazoline-4,6-diamine (CAS 267243-68-5)
- Semaglutide Impurity 162 (x TFA Salt) (CAS CATO-C4X-2226162)
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