2-Ethynyl-1,4-dimethoxybenzene CAS 22944-08-7
| CAS No. | 22944-08-7 |
| Molecular Formula | C10H10O2 |
| Molecular Weight | 162.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Ethynyl-1,4-dimethoxybenzene 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.
CATO supplies 2-Ethynyl-1,4-dimethoxybenzene (CAS 22944-08-7), a certified reference material (molecular formula C10H10O2, MW 162.19 g/mol) for analytical method development and quality control.
The molecular framework of 2-Ethynyl-1,4-dimethoxybenzene (C10H10O2) 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C10H10O2 |
| Molecular Weight | 162.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Ethynyl Standards
- 2-Ethynyl-1,3-dimethoxybenzene (CAS 126829-31-0)
- 1-Ethynyl-2,3-dimethoxybenzene (CAS 171087-99-3)
- (2-Ethynyl-5-methoxyphenyl)methanol (CAS 89414-50-6)
- 1-Ethynyl-2,4-dimethoxybenzene (CAS 77336-36-8)
- 1-Ethynyl-4-methoxymethoxybenzene (CAS 220882-37-1)
- 1-(2-Ethynyl-4-fluorophenyl)ethan-1-one (CAS 1233506-02-9)
- 1-(3-Ethynyl-4-fluorophenyl)ethan-1-one (CAS 1233513-11-5)
- 6-Ethynyl-2-methyl-3-nitropyridine (CAS 1204333-42-5)
Recommended Standards
- 2-Ethylbenzo[d]oxazol-6-amine (CAS 855423-35-7)
- 2-Hydrazinyl-1-methyl-1h-benzo[d]imidazole (CAS 7022-37-9)
- 2-Ethylbenzo[d]oxazol-4-amine (CAS 477603-35-3)
- 2-Hydrazinyl-4,6-dimethylnicotinonitrile (CAS 501680-44-0)
- spiro[7H-furo[3,4-b]pyridine-5,4'-piperidine] (CAS 1036408-86-2)
- 4-(6-bromopyridine-2-carbonyl)morpholine (CAS 892548-20-8)
- 5-Bromo-3-(difluoromethyl)-4-nitropyridin-2-amine (CAS 1805088-14-5)
- 1217042-05-1 Methanesulfonic acid--7-{4-[([1,1'-biphenyl]-3-yl)methyl]piperazin-1-yl}-5-chloro-1,3-benzoxazol-2(3H)-one (1/1) DTXSID40724516 (CAS 1217042-05-1)
- 58535-41-4 N-(5-Methyl-1,2,4-oxadiazol-3-yl)acetamide MFCD22056555 (CAS 58535-41-4)
- 5-(Thiophen-3-yl)-1h-pyrazole-3-carboxylic acid (CAS 1029108-69-7)
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- Ethyl (3aR,6aS)-6a-fluorohexahydrocyclopenta[c]pyrrole-3a(1H)-carboxylate (CAS 2375249-32-2)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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