2-(Phenylethynyl)benzoic acid CAS 1084-95-3
| CAS No. | 1084-95-3 |
| Molecular Formula | C15H10O2 |
| Molecular Weight | 222.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(Phenylethynyl)benzoic acid (CAS 1084-95-3), a certified reference material (molecular formula C15H10O2, MW 222.24 g/mol) for analytical method development and quality control.
Structurally, 2-(Phenylethynyl)benzoic acid (C15H10O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 222.24 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).
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 | C15H10O2 |
| Molecular Weight | 222.24 g/mol |
| Appearance | Pale yellow to 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Phenylethynyl Standards
- 3-(Phenylethynyl)benzoic acid (CAS 93866-50-3)
- 4-(Phenylethynyl)benzoic Acid (CAS 25739-23-5)
- 5-(2-phenylethynyl)thiophene-2-carbaldehyde (CAS 17257-10-2)
- (4-(Phenylethynyl)phenyl)boronic acid (CAS 702699-63-6)
- 5-(Phenylethynyl)nicotinic acid (CAS 175203-69-7)
- 2-(Phenylethynyl)benzamide (CAS 80221-08-5)
- 3-(Phenylethynyl)benzamide (CAS 587878-77-1)
- 1-(3-(Phenylethynyl)phenyl)ethan-1-one (CAS 147492-77-1)
Recommended Standards
- 4-(Pyridin-4-yl)-1H-indole-3-carbaldehyde (CAS 108378-89-8)
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- 6-(Piperidin-4-yloxy)nicotinic acid (CAS 1086379-90-9)
- Methyl 2-((tert-butoxycarbonyl)amino)-3-chloropropanoate (CAS 119542-95-9)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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