2-Ethynyl-4-methoxyphenol CAS 99299-73-7
| CAS No. | 99299-73-7 |
| Molecular Formula | C9H8O2 |
| Molecular Weight | 148.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Ethynyl-4-methoxyphenol (CAS 99299-73-7), a certified reference material (molecular formula C9H8O2, MW 148.16 g/mol) for analytical method development and quality control.
The molecular framework of 2-Ethynyl-4-methoxyphenol (C9H8O2) 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 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Ethynyl-4-methoxyphenol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8O2 |
| Molecular Weight | 148.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 1985 |
Related Ethynyl Standards
- 2-Ethynyl-5-methoxyphenol (CAS 1057669-95-0)
- 4-Ethynyl-3-methoxyphenol (CAS 1057670-07-1)
- 2-Ethynyl-4-methoxy-5-methylpyrimidine (CAS 1330044-21-7)
- 5-Ethynyl-2-methoxypyridin-3-amine (CAS 1391979-22-8)
- 4-Ethynyl-2-methoxyphenol (CAS 14031-76-6)
- 2-Ethynyl-6-methoxyphenol (CAS 1607814-85-6)
- 3-Ethynyl-2-methoxypyridin-4-amine (CAS 1824109-02-5)
- 2-Ethynyl-6-methoxypyridin-4-amine (CAS 1824296-22-1)
Recommended Standards
- 2-Ethyloxazolo[5,4-b]pyridine (CAS 856990-30-2)
- 2-Formyl-4,5-dimethyl-1H-pyrrole-3-carbonitrile (CAS 67377-32-6)
- 2-Ethyloxazolo[4,5-b]pyridine (CAS 52333-88-7)
- 2H-1-Benzopyran-3-ol (CAS 606490-02-2)
- 4-(1-Oxo-1-(o-tolyl)propan-2-yl)benzothialdehyde (CAS 898780-75-1)
- Fmoc-Thr(tBu)-OSu (CAS 75530-95-9)
- N-cyclopentyl-5-(1-tosylpyrrolidin-2-yl)pyridin-2-amine (CAS 1352532-27-4)
- Methyl (S)-2-amino-4-bromobutanoate hydrobromide (CAS 101650-17-3)
- Methyl (2S,4S)-4-[(2,4-dichloro-1-naphthyl)oxy]-2-pyrrolidinecarboxylate hydrochloride (CAS 1354485-51-0)
- Methyl 5-nitro-3-phenyl-1H-indole-2-carboxylate (CAS 298187-65-2)
- Ethyl 1-methyl-6-oxo-1,6-dihydropyridazine-4-carboxylate (CAS 956386-27-9)
- Ethyl N-([1,2,4]triazolo[1,5-a]pyrimidin-2-ylcarbonyl)glycinate (CAS 438212-79-4)
- Potassium (4-chloro-2-methylphenyl)trifluoroborate (CAS 1620108-43-1)
- Tau Peptide (45-73) (Exon 2/Insert 1 Domain) trifluoroacetate salt (CAS 2022956-54-1)
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