4-(Cyclopropylethynyl)benzoic acid CAS 908247-29-0
| CAS No. | 908247-29-0 |
| Molecular Formula | C12H10O2 |
| Molecular Weight | 186.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4-(Cyclopropylethynyl)benzoic acid (C12H10O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 186.21 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies 4-(Cyclopropylethynyl)benzoic acid (CAS 908247-29-0), a certified reference material (molecular formula C12H10O2, MW 186.21 g/mol) for analytical method development and quality control.
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 | C12H10O2 |
| Molecular Weight | 186.21 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related Cyclopropylethynyl Standards
- 2-(Cyclopropylethynyl)benzoic acid (CAS 1313028-09-9)
- 3-(Cyclopropylethynyl)benzoic acid (CAS 878742-31-5)
- 1-(4-(Cyclopropylethynyl)phenyl)ethan-1-amine (CAS 2440332-16-9)
- 2-(2-cyclopropylethynyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1432491-43-4)
- 5-(cyclopropylethynyl)pyridin-3-ylboronic acid (CAS 1189372-89-1)
- 4-(Cyclopropylethynyl)-2-methylbenzoic acid (CAS 908247-44-9)
- 2-(Cyclopropylethynyl)-4-nitroaniline (CAS 952664-83-4)
- 2-(Cyclopropylethynyl)benzaldehyde (CAS 914220-97-6)
Recommended Standards
- 4-(6-Aminopyridin-3-yl)phenol (CAS 96721-88-9)
- 4-(Imidazo[1,2-a]pyridin-2-yl)but-3-en-2-one (CAS 478394-37-5)
- 4-(5-Oxopyrrolidin-2-yl)benzonitrile (CAS 339087-31-9)
- 4-(Pyridin-2-yloxy)aniline (CAS 76471-08-4)
- 3-(Tetrahydrofuran-3-yl)morpholine (CAS 1859200-67-1)
- 4-Bromo-N-(2-bromo-4-fluorophenyl)benzamide (CAS 1038736-65-0)
- 4-(1-Methyl-1h-pyrrol-3-yl)thiazol-2-amine (CAS 952933-03-8)
- (R)-2-(3-fluoro-5-(trifluoromethyl)phenyl)piperidine (CAS 1213434-90-2)
- 2-(3-(Trifluoromethyl)phenoxy)propanoic acid (CAS 836-35-1)
- Apremilast Impurity 117 (CAS CATO-C4X-1009117)
- 2-I feminineIi paragraph signthornEaAAE paragraph signthornO feminine E(R) masculineIIi 2-No uIi paragraph signthornEa paragraph signthornAAENI E(R) masculineIIi 2-Oxopentanedioic acid disodium salt 305-72-6 Sodium 2-oxoglutarate dibasic dihydrate dipotassium dihydrate oxoglutarate disodium dihydrate |A ketoglutarate (CAS 305-72-6)
- 2-Chloro-4-(1h-imidazol-1-yl)pyridine (CAS 1209458-15-0)
- 1,3-Dilinoleoyl-2-chloropropanediol (CAS 1432592-04-5)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
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