Ethyl 4-chloro-3-ethoxybut-2-enoate CAS 32809-81-7
| CAS No. | 32809-81-7 |
| Molecular Formula | C8H13ClO3 |
| Molecular Weight | 192.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 192.64 g/mol gives Ethyl 4-chloro-3-ethoxybut-2-enoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 4-chloro-3-ethoxybut-2-enoate (CAS 32809-81-7), a certified reference material (molecular formula C8H13ClO3, MW 192.64 g/mol) for analytical method development and quality control.
Structurally, Ethyl 4-chloro-3-ethoxybut-2-enoate (C8H13ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 192.64 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), Ethyl 4-chloro-3-ethoxybut-2-enoate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C8H13ClO3 |
| Molecular Weight | 192.64 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1966 |
| Halogen Content | Cl-containing |
Related Ethyl Standards
- 4-chloro-2-cyclopropyl-1H-Pyrrolo[2,3-b]pyridine (CAS 1014613-52-5)
- 7-Chloro-2-methylquinolin-8-amine (CAS 102876-99-3)
- 5-Chloro-2-methylquinolin-8-amine (CAS 102879-01-6)
- 1-Chloro-4-methoxynaphthalene (CAS 10443-43-3)
- 3-Chloro-4-(1H-pyrrol-1-yl)aniline (CAS 106981-50-4)
- 6-Chloro-3-(prop-1-en-2-yl)imidazo[1,2-a]pyridine (CAS 1080429-96-4)
- 2-chloro-5,7-dimethyl-1,6-naphthyridine (CAS 1085267-44-2)
- 1-Chloro-6-methylisoquinolin-5-amine (CAS 1093101-44-0)
Recommended Standards
- Ethyl 4-chloro-3-ethoxy-2(E)-butenoate (CAS 65840-68-8)
- ethyl 5-(chloromethyl)-1H-pyrazole-3-carboxylate (CAS 73515-41-0)
- Ethyl 4-chloro-3,3-dimethyl-4-oxobutanoate (CAS 81430-18-4)
- Ethyl 6-chloro-2-oxohexanoate (CAS 62123-62-0)
- 2-(Methoxycarbonyl)-1H-pyrrolo[2,3-b]pyridine-3-carboxylic acid (CAS 1204475-85-3)
- (2R,4R)-2-(tert-Butyl)-4-(2-(methylthio)ethyl)oxazolidin-5-one (CAS 649723-64-8)
- 1-(Benzyloxy)-2-(4-methoxyphenyl)-1H-imidazo[4,5-b]pyridine (CAS 339027-17-7)
- 6-Methoxyindoline-2-carboxylic acid (CAS 1367725-61-8)
- PALDA (CAS 136181-87-8)
- 2-(2,4-Dioxothiazolidin-3-yl)acetonitrile (CAS 1351566-23-8)
- Ziprasidone Impurity 14 (CAS CATO-C4X-124014)
- 5-Bromo-N-(3-morpholinopropyl)pyrimidin-2-amine (CAS 886365-73-7)
- 9-(N-Acetylamino)minocycline (CAS 153621-85-3)
- β-Asp9-Tirzepatide (CAS CATO-CPTD788931)
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