methyl 2-chlorobut-3-enoate CAS 51171-63-2
| CAS No. | 51171-63-2 |
| Molecular Formula | C5H7ClO2 |
| Molecular Weight | 134.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, methyl 2-chlorobut-3-enoate (C5H7ClO2) 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 134.56 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies methyl 2-chlorobut-3-enoate (CAS 51171-63-2), a certified reference material (molecular formula C5H7ClO2, MW 134.56 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.
As a certified reference material (CRM), methyl 2-chlorobut-3-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 | C5H7ClO2 |
| Molecular Weight | 134.56 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.) | 1971 |
| Halogen Content | Cl-containing |
Related methyl Standards
- Methyl 4-chlorobut-2-ynoate (CAS 41658-12-2)
- 4-Chlorobut-2-enoyl chloride (CAS 24806-06-2)
- N-(4-Chlorobut-2-yn-1-yl)acetamide (CAS 29052-82-2)
- [(4-Chlorobut-2-yn-1-yl)sulfanyl]carbonitrile (CAS 113079-33-7)
- 4-Chlorobut-2-yn-1-yl acetate (CAS 34452-25-0)
- 4-chlorobut-2-enoic acid (CAS 16197-90-3)
- (E)-4-chlorobut-2-enoic acid (CAS 26340-58-9)
- (Z)-4-chlorobut-2-en-1-yl acetate (CAS 55613-61-1)
Recommended Standards
- Ethyl 2-chloroprop-2-enoate (CAS 687-46-7)
- Tetrahydrofuran-2-carbonyl Chloride (CAS 52449-98-6)
- Dihydro-5-chloro-5-methyl-2(3H)-furanone (CAS 40125-55-1)
- Tetrahydrofuran-3-carbonyl Chloride (CAS 69595-02-4)
- 4-bromo-2-(bromocyclopropylmethyl)-1-methoxy-Benzene (CAS 1247864-26-1)
- (R)-2-(3-((Cyclopropylmethyl)amino)piperidin-1-yl)acetic acid (CAS 1354007-64-9)
- Potassium 4-hydroxy-3-(sulfothio)phenolate (CAS 88891-36-5)
- (2-Amino-6-methylpyrimidin-4-yl)methanol (CAS 110429-43-1)
- 7β,17α-Dimethyl-5β-androstane-3α,17β-diol (CAS 73245-61-1)
- 2-(Bromomethyl)-4,5-dimethylthiazole (CAS 100245-78-1)
- N-(3-Aminopropyl)glycine Dihydrochloride (CAS 90495-95-7)
- 1-(2-Fluoroethyl)-N-((1-isopropyl-1H-pyrazol-4-yl)methyl)-3-methyl-1H-pyrazol-4-amine hydrochloride (CAS 1856040-89-5)
- (1-(2-Methoxyethyl)pyrrolidin-2-yl)methanol (CAS 1249698-12-1)
- Thymopoietin II Peptide Fragment (CAS 56795-64-3)
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