2-(2-Chloro-9H-thioxanthen-9-yl)acetic acid CAS 21908-89-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21908-89-4 |
| Molecular Formula | C15H11ClO2S |
| Molecular Weight | 290.76 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-(2-Chloro-9H-thioxanthen-9-yl)acetic acid (CAS 21908-89-4), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C15H11ClO2S. Molecular weight: 290.76 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C15H11ClO2S |
| Molecular Weight | 290.76 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 1-(2-Chloro-4-fluorophenyl)-3-(2,3-dimethylphenyl)propan-1-one (CAS 898793-16-3)
- 1-(2-Chloro-4-fluorophenyl)-3-(2,4-dimethylphenyl)propan-1-one (CAS 898794-38-2)
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Recommended Standards
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- tert-Butyl 3-hydroxy-3-[2-(trifluoromethoxy)phenyl]azetidine-1-carboxylate (CAS 1609671-84-2)
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- (R)-3-((((9H-fluoren-9-yl)methoxy)carbonyl)amino)-2-(3,4,5-trimethoxybenzyl)propanoic acid (CAS 1260618-84-5)
- 3-Chloro-5-isopropyl-1,2,4-oxadiazole (CAS 1243250-26-1)
- 2-Propenoic acid, 2-methyl-, methyl ester, polymer with 2-ethylhexyl 2-propenoate (CAS 25265-15-0)
- Peptide Impurity 13 (CAS CATO-CPTD788813)
Why CATO?
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