6-Chloroisatin CAS 6341-92-0
| CAS No. | 6341-92-0 |
| Molecular Formula | C8H4ClNO2 |
| Molecular Weight | 181.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C8H4ClNO2, 6-Chloroisatin contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 181.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies 6-Chloroisatin (CAS 6341-92-0), a certified reference material (molecular formula C8H4ClNO2, MW 181.58 g/mol) for analytical method development and quality control.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C8H4ClNO2 |
| Molecular Weight | 181.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloroisatin Standards
Recommended Standards
- 6-Chloroimidazo[1,2-b]pyridazine-2-carbaldehyde (CAS 440094-14-4)
- 7-Chloro-2H-pyrimido[1,2-b]pyridazin-2-one (CAS 88820-44-4)
- 6-Chloroimidazo[1,2-a]pyrimidine-3-carbaldehyde (CAS 944906-50-7)
- 7-Chloro-4H-pyrimido[1,2-b]pyridazin-4-one (CAS 88820-50-2)
- 2-(Trichloromethyl)pyridine (CAS 4377-37-1)
- Ethyl thiazolo[4,5-c]pyridine-2-carboxylate (CAS 911463-38-2)
- Ethyl 2-(5-Methoxy-2-methyl-1H-indol-3-yl)acetate (CAS 17536-38-8)
- 2,6-Dichloro-3-(3-chloropropyl)quinazolin-4(3H)-one (CAS 34954-75-1)
- Enzalutamide Impurity 32 (CAS 1839619-50-9)
- furo[3,2-c]pyridine (CAS 271-92-1)
- H-Ala-D-Phe-OH (CAS 3061-93-6)
- 2-(2-{[3,5-bis(trifluoromethyl)phenyl]amino}-1,3-thiazol-4-yl)acetic acid (CAS 1797040-33-5)
- (R)-2-methyl-4-nitrobutanoic acid (CAS 88390-28-7)
- D-[Ser]8-Semaglutide (CAS CATO-C4X-2226207)
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