2-propynoic acid 471-25-0 Acetylenecarboxylic acid CHEBI:33199 HC#CCOOH Propinsaeure Propiolic acid Propiolsaeure acetylenic acid carboxyacetylene prop-2-ynoic acid propargylic acid propinic acid propynoic acid CAS 471-25-0
| CAS No. | 471-25-0 |
| Molecular Formula | C3H2O2 |
| Molecular Weight | 70.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-propynoic acid 471-25-0 Acetylenecarboxylic acid CHEBI:33199 HC#CCOOH Propinsaeure Propiolic acid Propiolsaeure acetylenic acid carboxyacetylene prop-2-ynoic acid propargylic acid propinic acid propynoic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-propynoic acid 471-25-0 Acetylenecarboxylic acid CHEBI:33199 HC#CCOOH Propinsaeure Propiolic acid Propiolsaeure acetylenic acid carboxyacetylene prop-2-ynoic acid propargylic acid propinic acid propynoic acid (CAS 471-25-0) is a high-purity analytical reference standard with the molecular formula C3H2O2 and a molecular weight of 70.05 g/mol.
Based on its molecular formula C3H2O2, 2-propynoic acid 471-25-0 Acetylenecarboxylic acid CHEBI:33199 HC#CCOOH Propinsaeure Propiolic acid Propiolsaeure acetylenic acid carboxyacetylene prop-2-ynoic acid propargylic acid propinic acid propynoic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 70.05 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures 2-propynoic acid 471-25-0 Acetylenecarboxylic acid CHEBI:33199 HC#CCOOH Propinsaeure Propiolic acid Propiolsaeure acetylenic acid carboxyacetylene prop-2-ynoic acid propargylic acid propinic acid propynoic 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 | C3H2O2 |
| Molecular Weight | 70.05 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1957 |
Related propynoic Standards
- 2-Propynoic acid, sodium salt (CAS 920-38-7)
- 2-Propynoic acid, 3-cyclopentyl-, ethyl ester (CAS 17931-62-3)
- 2-Propynoic acid, 3-(2-pyrazinyl)-, ethyl ester (CAS 548757-45-5)
- 2-Propynoic acid, 3-(1-hydroxycyclohexyl)-, methyl ester (CAS 72036-33-0)
- 2-Propynoic acid, 3-(4,5-dihydro-4-oxo-1H-pyrazolo[3,4-d]pyrimidin-3-yl)-, phenylmethyl ester (CAS 2583489-87-4)
Recommended Standards
- Tetrazole (CAS 27988-97-2)
- Tetrazole (CAS 288-94-8)
- 1,3,4-Oxadiazole (CAS 288-99-3)
- Diphenoxylate EP Impurity B (CAS 4370-12-1)
- 1-Mesityl-1,4,5,6-tetrahydropyrimidine (CAS 821779-94-6)
- 2-(4-Bromo-1,5-dimethyl-1H-pyrazol-3-yl)propan-2-ol (CAS 1379338-19-8)
- Ethyl 2-methyl-2-(1,2,3,4-tetrahydroquinolin-6-yl)propanoate (CAS 2387596-19-0)
- tert-butyl (tran-1-(4-bromophenyl)-3-hydroxy-3-methylcyclobutyl)carbamate (CAS 1247898-38-9)
- Ramelteon Impurity 38 (CAS 1260675-80-6)
- 2,4-Difluoro-1H-imidazole-5-carboxamide (CAS 89676-63-1)
- Ethyl 3-iodo-8-methoxyquinoline-6-carboxylate (CAS 2721374-09-8)
- (Tetrahydro-2H-thiopyran-3-yl)methanol (CAS 1195351-86-0)
- 1-Benzyl-3-bromo-pyrrolo[2,3-b]pyridine (CAS 281192-93-6)
- Semaglutide Impurity 13 (CAS CATO-C4X-222613)
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