1-Chlorobutane-2,3-dione CAS 5559-62-6
| CAS No. | 5559-62-6 |
| Molecular Formula | C4H5ClO2 |
| Molecular Weight | 120.53 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 1-Chlorobutane-2,3-dione.
1-Chlorobutane-2,3-dione (CAS 5559-62-6), molecular formula C4H5ClO2 and molecular weight 120.53 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 1-Chlorobutane-2,3-dione is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 120.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures 1-Chlorobutane-2,3-dione 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 | C4H5ClO2 |
| Molecular Weight | 120.53 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.) | 1958 |
| Halogen Content | Cl-containing |
Related Chlorobutane Standards
- (R)-2-Chlorobutane-1,4-diol (CAS 101021-57-2)
- (R)-4-chlorobutane-1,3-diol (CAS 125605-10-9)
- (S)-4-chlorobutane-1,3-diol (CAS 139013-68-6)
- (±)-2-Chlorobutane-d9 (CAS 175540-77-9)
- 1-Chlorobutane-d9 (CAS 175540-76-8)
- 1-Chlorobutane (CAS 109-69-3)
- 2-Chlorobutane (CAS 78-86-4)
- 3-Chlorobutane-1-sulfonamide (CAS 99380-64-0)
Recommended Standards
- (E)-4-chlorobut-2-enoic acid (CAS 26340-58-9)
- 2-Chloro-2-dioxene (CAS 57253-40-4)
- oxetane-3-carbonyl chloride (CAS 1637758-08-7)
- 2-Chlorobut-3-enoic acid (CAS 24253-33-6)
- 1,2,3,8,9-Pentabromodibenzo[b,d]furan (CAS 617708-01-7)
- 2-(tert-Butyl)benzo[d]thiazol-6-ol (CAS 184837-10-3)
- 4-((4-Chlorophenoxy)methyl)benzimidamide hydrochloride (CAS 1267321-20-9)
- N-(3-Phenylpropyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxamide (CAS 850168-31-9)
- 5-Methoxyfuran-2-carboxamide (CAS 98140-72-8)
- 7-Bromo-1-(2,5-dibromophenyl)heptan-1-ol (CAS 1956386-21-2)
- 3-((4-Chlorophenyl)thio)azetidine hydrochloride (CAS 1864014-16-3)
- 4-Fluoro-2-(2-methylthiazol-4-yl)phenol (CAS 1387565-82-3)
- 2-(Dodecyloxy)-6-((5-(thiophen-3-yl)pentyl)oxy)anthracene-9,10-dione (CAS 540475-27-2)
- Insulin Pork(≥27 USP units/mg) (CAS 12584-58-6)
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