2-Chloro-5-((trifluoromethyl)sulfonyl)aniline CAS 779-87-3
| CAS No. | 779-87-3 |
| Molecular Formula | C7H5ClF3NO2S |
| Molecular Weight | 259.63 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 2-Chloro-5-((trifluoromethyl)sulfonyl)aniline.
2-Chloro-5-((trifluoromethyl)sulfonyl)aniline (CAS 779-87-3), molecular formula C7H5ClF3NO2S and molecular weight 259.63 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution, an aromatic ring system, 2-Chloro-5-((trifluoromethyl)sulfonyl)aniline is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 259.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Chloro-5-((trifluoromethyl)sulfonyl)aniline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H5ClF3NO2S |
| Molecular Weight | 259.63 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 |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-Chloro-2-(trifluoromethyl)benzenesulfonamide (CAS 113823-98-6)
- 2-Chloro-4-(trifluoromethyl)benzenesulfonamide (CAS 146533-47-3)
- 4-Chloro-2-((trifluoromethyl)sulfonyl)aniline (CAS 1517450-98-4)
- 2-Chloro-5-(trifluoromethyl)benzene-1-sulfonamide (CAS 779-71-5)
- 2-Chloro-6-(trifluoromethyl)benzene-1-sulfonamide (CAS 874814-71-8)
- 4-Chloro-3-(trifluoromethyl)benzenesulfonamide (CAS 406233-17-8)
- Ethyl 2-Chloro-4-(trifluoromethyl)thiazole-5-carboxylate (CAS 72850-52-3)
- 2-Chloro-4-(3-(trifluoromethyl)phenyl)-1,3,5-triazine (CAS 1053658-32-4)
Recommended Standards
- 4-Methyl-6-(trifluoromethyl)pyridine-2-sulfonyl chloride (CAS 1393570-54-1)
- 4-Amino-3-(trifluoromethyl)benzene-1-sulfonyl chloride (CAS 51950-72-2)
- (5-(Trifluoromethyl)pyridin-2-yl)methanesulfonyl chloride (CAS 1393560-83-2)
- 2-Methyl-6-(trifluoromethyl)pyridine-4-sulfonyl chloride (CAS 1393560-48-9)
- 4-{[(2,2-Dimethyl-4,6-dioxo-1,3-dioxan-5-ylidene)-methyl]amino}butanoic acid (CAS 1273578-10-1)
- 5-Bromopyrazolo[1,5-a]pyridine (CAS 1060812-84-1)
- Tert-butyl 2-(4-methoxyphenyl)-3-thioxo-1,4,8-triazaspiro[4.5]Dec-1-ene-8-carboxylate (CAS 892295-95-3)
- Phenylbutazone EP Impurity C (CAS 122-66-7)
- 1-[2-(2-methylphenyl)-1,3-thiazole-4-sulfonyl]piperazine (CAS 1311315-66-8)
- 5,8-Epoxy-13-cis Retinoic Acid (Mixture of Diastereomers) (CAS 112018-12-9)
- 1-Phenyl-3-(pyridin-4-yl)-1h-pyrazole-4-carbaldehyde (CAS 371917-81-6)
- 4-Oxo-1-phenylphosphinane-3-carbonitrile (CAS 39767-81-2)
- Fmoc-DL-buthionine (CAS 1396969-21-3)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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