4-Chlorobut-2-ynoic acid CAS 13280-03-0
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 13280-03-0 |
| Molecular Formula | C4H3ClO2 |
| Molecular Weight | 118.52 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chlorobut-2-ynoic acid (CAS 13280-03-0) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C4H3ClO2. Molecular weight: 118.52 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4H3ClO2 |
| Molecular Weight | 118.52 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 | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1960 |
| Halogen Content | Cl-containing |
Related Chlorobut Standards
- 4-chlorobut-2-enoic acid (CAS 16197-90-3)
- (E)-4-chlorobut-2-enoic acid (CAS 26340-58-9)
- 2-Chlorobut-3-enoic acid (CAS 24253-33-6)
- 3-Chlorobut-2-enoic acid (CAS 55831-56-6)
- (E)-4-Chlorobut-2-en-1-ol (CAS 1775-39-9)
- 4-Chlorobut-2-en-1-ol (CAS 7523-44-6)
- 4-Chlorobut-2-en-1-amine (CAS 54880-27-2)
- 4-Chlorobut-2-yn-1-ol (CAS 13280-07-4)
Recommended Standards
- 287389-52-0 CP 27-13C6 Chlorobenzene-13C6 IP Carrier T 40-13C6 MCB-13C6 Monochlorobenzene-13C6 NSC 8433-13C6 Phenyl Chloride-13C6 Tetrosin SP-13C6 (CAS 287389-52-0)
- 3-Chloro-5-methyl-1,2,4-oxadiazole (CAS 1359822-66-4)
- 2-Chloropyridine 13C5 (CAS 1329835-57-5)
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- 2-(2-(Benzyloxy)phenyl)acetonitrile (CAS 92552-22-2)
- 1-(2-Fluorophenyl)-6-isopropyl-1h-pyrazolo[3,4-b]pyridine-4-carboxylic acid (CAS 1018127-29-1)
- 2-Morpholinopyrimidine-4,6-diol (CAS 24193-00-8)
- 5,6-Difluorobenzo[d]isoxazol-3-amine (CAS 280574-98-3)
- Characteristic MSH-Tetrapeptide (CAS 4289-02-5)
Why CATO?
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