Ethyl (e)-4-chlorobut-2-enoate CAS 10479-85-3
| CAS No. | 10479-85-3 |
| Molecular Formula | C6H9ClO2 |
| Molecular Weight | 148.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 148.59 g/mol gives Ethyl (e)-4-chlorobut-2-enoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Ethyl (e)-4-chlorobut-2-enoate (CAS 10479-85-3), molecular formula C6H9ClO2 and molecular weight 148.59 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl (e)-4-chlorobut-2-enoate (C6H9ClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 (e)-4-chlorobut-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 | C6H9ClO2 |
| Molecular Weight | 148.59 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
Recommended Standards
- 2-(4-chloro-1H-pyrazol-1-yl)acetaldehyde (CAS 1015939-57-7)
- 6-chloro-3-methyl-1H-pyrazin-2-one (CAS 105985-19-1)
- 6-chloro-3-methyl-pyrimidin-4-one (CAS 101079-62-3)
- 1-methoxycyclobutane-1-carbonyl chloride (CAS 110046-66-7)
- (5-((4-Chlorophenyl)sulfonyl)-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl 4-chlorobenzoate (CAS 318469-38-4)
- 1-(4-(Aminomethyl)benzyl)piperidin-3-ol hydrochloride (CAS 1361114-17-1)
- (4-Fluorophenyl)(pyridin-4-yl)methanamine dihydrochloride (CAS 1269050-32-9)
- Glycerol Impurity 10 (Disulfide Oxidation Product) (CAS 4807-52-7)
- Pentixafor (CAS 1341207-62-2)
- cis-Dichlorbis(2,2'-bipyrazine)dichlororuthenium (CAS 80907-59-1)
- 1-((3-Bromophenyl)sulfonyl)-4-methylpiperidine (CAS 1095907-72-4)
- N-(Pentan-3-yl)-5-(tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (CAS 2490666-17-4)
- 1-(propan-2-yl)-1H-pyrazol-4-amine dihydrochloride (CAS 1955554-69-4)
- Peptide 437 (CAS CATO-CPTD788437)
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