2-Chlorophenyl Isothiocyanate CAS 2740-81-0
| CAS No. | 2740-81-0 |
| Molecular Formula | C7H4ClNS |
| Molecular Weight | 169.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-Chlorophenyl Isothiocyanate (C7H4ClNS) contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 2-Chlorophenyl Isothiocyanate (CAS 2740-81-0), a certified reference material (molecular formula C7H4ClNS, MW 169.63 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C7H4ClNS |
| Molecular Weight | 169.63 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorophenyl Standards
- [(4-Chlorophenyl)sulfanyl]formonitrile (CAS 3226-37-7)
- 3-Chlorophenyl Isothiocyanate (CAS 2392-68-9)
- 2-(2-Chlorophenyl)acetamide (CAS 10268-06-1)
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- N-(2-Chlorophenyl)-N-methylformamide (CAS 14924-76-6)
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Recommended Standards
- 2-Chloro-6-sulfanylbenzonitrile (CAS 72371-52-9)
- 2-Chlorothieno[2,3-c]pyridine (CAS 756477-32-4)
- 1-Chlorocyclobutane-1-sulfonamide (CAS 2137831-88-8)
- 2-Chlorothieno[3,2-b]pyridine (CAS 94191-14-7)
- 6-Chloro-2-methyl-5-(2-(piperidin-4-yl)ethyl)pyrimidin-4-amine (CAS 1770917-73-1)
- 5-(3-Chlorophenyl)-4,5-dihydro-1,2-oxazole-3-carboxylic acid (CAS 1018052-82-8)
- 1-(2-(2-Methoxyethoxy)phenyl)ethan-1-amine (CAS 1016735-05-9)
- 2-(2,2,2-Trifluoroethyl)morpholine (CAS 1446485-13-7)
- 3,5-Dibromo-1-[2-(4-nitrophenyl)ethyl]-1H-1,2,4-triazole (CAS 1240567-48-9)
- N-(4-Chloropyrimidin-5-yl)-N-ethylisonicotinamide (CAS 873686-91-0)
- 4-(Aminomethyl)-1-methylpiperidin-4-ol dihydrochloride (CAS 23804-63-9)
- 5-Amino-2-hydroxynicotinamide (CAS 1250505-04-4)
- 2-((4-Ethyl-5-(pyrazin-2-yl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-(6-methylbenzo[d]thiazol-2-yl)phenyl)acetamide (CAS 573945-36-5)
- Peptide 431 (CAS CATO-CPTD788431)
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