3,5-Dichloroisothiazole-4-carboxylic acid CAS 3889-59-6
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3889-59-6 |
| Molecular Formula | C4HCl2NO2S |
| Molecular Weight | 198.03 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,5-Dichloroisothiazole-4-carboxylic acid (CAS 3889-59-6) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C4HCl2NO2S. Molecular weight: 198.03 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C4HCl2NO2S |
| Molecular Weight | 198.03 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichloroisothiazole Standards
- 4,5-Dichloroisothiazole-3-carboxylic acid (CAS 131947-13-2)
- 3,4-Dichloroisothiazole-5-carboxylic acid (CAS 18480-53-0)
- 3,4-Dichloroisothiazole-5-carboxylic acid amide (CAS 18480-55-2)
- Methyl 4,5-dichloroisothiazole-3-carboxylate (CAS 166668-76-4)
- Methyl 3,4-dichloroisothiazole-5-carboxylate (CAS 352010-56-1)
- 3,4-Dichloroisothiazole-5-carbaldehyde (CAS 1161865-89-9)
- 3,4-Dichloroisothiazole-5-carbonitrile (CAS 18480-52-9)
- 3,5-Dichloroisothiazole-4-carbonitrile (CAS 2120-82-3)
Recommended Standards
- 2,4-Dichlorothiazole-5-carboxylic acid (CAS 62019-56-1)
- 3-Biphenylboronic acid, 97% (CAS 5122-95-2)
- 2-(Naphthalen-2-yl)-1,3,2-dioxaborolane (CAS 919988-32-2)
- 3-(3,5-Dibromo-4-propoxyphenyl)acrylic acid (CAS 937599-20-7)
- 3-(4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazol-1-yl)butanenitrile (CAS 1233526-43-6)
- Tert-butyl 2-aminobutanoate (CAS 15911-72-5)
- 4-((tert-Butyldimethylsilyl)-oxy)-4-phenylbutan-1-ol (CAS 241818-03-1)
- tert-Butyl 6-chloro-3,3-dimethyl-2,3-dihydro-1H-pyrrolo[2,3-b]pyridine-1-carboxylate (CAS 1998151-88-4)
- 2-(4-(4-Bromobenzyl)piperazin-1-yl)-1-morpholinoethan-1-one (CAS 329701-34-0)
- Peptide 440 (CAS CATO-CPTD788440)
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