(E)-1-Chloro-2-methylbut-2-ene CAS 23009-73-6
| CAS No. | 23009-73-6 |
| Molecular Formula | C5H9Cl |
| Molecular Weight | 104.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (E)-1-Chloro-2-methylbut-2-ene.
CATO supplies (E)-1-Chloro-2-methylbut-2-ene (CAS 23009-73-6), a certified reference material (molecular formula C5H9Cl, MW 104.58 g/mol) for analytical method development and quality control.
Structurally, (E)-1-Chloro-2-methylbut-2-ene (C5H9Cl) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 104.58 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.
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), (E)-1-Chloro-2-methylbut-2-ene 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 | C5H9Cl |
| Molecular Weight | 104.58 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
Related E Standards
- 1-Chloro-2-pentene (CAS 10071-60-0)
- 4-chloro-2-methylbut-1-ene (CAS 10523-96-3)
- 4-Chloro-3-methylbut-1-ene (CAS 10524-01-3)
- 2-Chloro-3-pentene (CAS 1458-99-7)
- 3-Chloro-3-methyl-1-butene (CAS 2190-48-9)
- 5-Chloro-1-pentene (CAS 928-50-7)
- 2-Chloro-4,5-dihydro-1H-imidazole (CAS 54255-11-7)
- 2-Chloro Cyclobutanone (CAS 20686-67-3)
Recommended Standards
- (Chloromethyl)cyclobutane (CAS 78415-89-1)
- 1-(Chloromethyl)-2-methylcyclopropane (CAS 89364-64-7)
- (2-Chloroethyl)cyclopropane (CAS 38674-38-3)
- 2-(Chloromethyl)-1-butene (CAS 23010-02-8)
- 2,6,8-Trimethoxy-9-methyl-5,9-dihydro-4H-purine (CAS 817631-49-5)
- 4-(Propan-2-yloxy)butan-2-ol (CAS 40091-57-4)
- Piroxicam-β-cyclodextrin complex (CAS 121696-62-6)
- Sofosbuvir Impurity 96 (CAS 1392015-05-2)
- 3-(5-Ethynyl-1-oxoisoindolin-2-yl)piperidine-2,6-dione (CAS 2412439-21-3)
- 3-Bromo-5-(morpholinosulfonyl)pyridine-4-thiol (CAS 1352522-36-1)
- (1R,2S)-2-(trifluoromethyl)cyclopropane-1-carboxylic acid (CAS 1932154-34-1)
- Ethyl 5,6-dihydro-4H-pyrrolo[3,2,1-ij]quinoline-2-carboxylate (CAS 97631-21-5)
- 3-Methylbutan-2-yl 4-methylbenzenesulfonate (CAS 26466-06-8)
- Tau Peptide (307-321) trifluoroacetate salt (CAS 330456-50-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com