2-Ethynylcyclopropanecarboxylic acid CAS 65131-31-9
| CAS No. | 65131-31-9 |
| Molecular Formula | C6H6O2 |
| Molecular Weight | 110.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 110.11 g/mol gives 2-Ethynylcyclopropanecarboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Ethynylcyclopropanecarboxylic acid (CAS 65131-31-9) is a high-purity analytical reference standard with the molecular formula C6H6O2 and a molecular weight of 110.11 g/mol.
Structurally, 2-Ethynylcyclopropanecarboxylic acid (C6H6O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 110.11 g/mol, it falls into the low-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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-Ethynylcyclopropanecarboxylic acid 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 | C6H6O2 |
| Molecular Weight | 110.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
Related Ethynylcyclopropanecarboxylic Standards
Recommended Standards
- 2-aminopyridin-4-ol (CAS 33631-05-9)
- 2-Hydroxy-3-methylpyrazine (CAS 19838-07-4)
- 2-Aminopyridin-4(1H)-one (CAS 33623-18-6)
- 2-Hydroxy-6-methylpyrazine (CAS 20721-18-0)
- Methyl 7-chloro-5-methoxyimidazo[1,5-a]pyridine-1-carboxylate (CAS 1427426-19-4)
- 4-[(1-methyl-1H-imidazol-2-yl)methoxy]benzoic acid (CAS 1094451-54-3)
- 3-isothiocyanatothiophene (CAS 61528-50-5)
- 1-(2-Aminophenyl)propan-1-one (CAS 1196-28-7)
- 2-Bromo-6-ethynylpyridine (CAS 445468-63-3)
- 2-Bromo-5,6-dihydrobenzofuran-7(4H)-one (CAS 1367954-13-9)
- 6-Bromo-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine hydrochloride (CAS 2173992-37-3)
- (Methoxycarbonyl)-L-isoleucine (CAS 74761-39-0)
- 6-(4-Chlorophenyl)-2-[(4-methylphenyl)sulfanyl]-4-(trifluoromethyl)pyridine-3-carbonitrile (CAS 338963-45-4)
- Angiotensin II Antipeptide (CAS 121379-63-3)
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