4-Ethynyl-2-methoxy-1-methylbenzene CAS 69187-63-9
| CAS No. | 69187-63-9 |
| Molecular Formula | C10H10O |
| Molecular Weight | 146.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Ethynyl-2-methoxy-1-methylbenzene is closely related to a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Ethynyl-2-methoxy-1-methylbenzene (CAS 69187-63-9), molecular formula C10H10O and molecular weight 146.19 g/mol, is a CATO reference standard with documented purity and traceability.
4-Ethynyl-2-methoxy-1-methylbenzene (C10H10O) contains a hydroxyl group, an ether linkage, an aromatic ring system. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C10H10O |
| Molecular Weight | 146.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | 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.) | 1976 |
Related Ethynyl Standards
- 2-Ethynyl-1-methoxy-4-methylbenzene (CAS 104971-07-5)
- 1-Ethynyl-3-(methoxymethyl)benzene (CAS 1339108-03-0)
- (4-Ethynyl-3-methylphenyl)methanol (CAS 1357281-70-9)
- 1-Ethynyl-2-methoxy-4-methylbenzene (CAS 1572960-03-2)
- 2-Ethynyl-4-methoxy-1-methylbenzene (CAS 1691719-04-6)
- 2-Ethynyl-N,N-dimethylpyridin-4-amine (CAS 1824107-52-9)
- (4-Ethynyl-2-methylphenyl)methanol (CAS 345965-77-7)
- 1-Ethynyl-2-methoxy-3-methylbenzene (CAS 2228440-67-1)
Recommended Standards
- 4-Ethynyl-2,6-dimethylphenol (CAS 374067-81-9)
- 4-Isopropylnicotinonitrile (CAS 435273-45-3)
- 4-Ethynyl-1-methoxy-2-methylbenzene (CAS 90843-06-4)
- 4-Isopropylpicolinonitrile (CAS 676136-14-4)
- Tert-butyl (4-((3-methoxybenzyl)amino)cyclohexyl)carbamate (CAS 1286273-56-0)
- (6-Amino-2,3-dimethylphenyl)dimethylphosphine oxide (CAS 2595158-92-0)
- 2-Bromo-4-chloro-5-nitroaniline (CAS 872266-26-7)
- 2-Cyano-N-(4-ethoxyphenyl)-3-(3-methoxyphenyl)propanamide (CAS 1261016-79-8)
- Acyclovir Impurity 5 (CAS 19962-37-9)
- 7-Ethoxy-4-methylquinolin-2(1H)-one (CAS 105908-28-9)
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- N-(Benzo[d][1,3]dioxol-5-yl)-N-methylpyrrolidin-3-amine hydrochloride (CAS 1417793-87-3)
- Menaquinone 6 (CAS 84-81-1)
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