2-Chlorobenzoic acid CAS#118-91-2
Strong Acidic Performance: 2-Chlorobenzoic acid is the strongest acid among the three chlorobenzoic acid isomers, offering excellent reactivity in chemical synthesis.
Versatile Chemical Intermediate: It serves as an important precursor for the production of a wide range of specialty chemicals and fine chemical products.
Broad Application Potential: The compound is widely used in the synthesis of pharmaceuticals, food additives, and dyes.
Stable Solid Form: Supplied as a white solid, 2-Chlorobenzoic acid is convenient for handling, storage, and industrial processing.
2-Chlorobenzoic Acid CAS#118-91-2
2-Chlorobenzoic acid is an organic compound with the molecular formula ClC₆H₄CO₂H. It is one of three isomeric chlorobenzoic acids and is recognized as the strongest acid among them.
This compound appears as a white solid and is widely used as a key precursor in the synthesis of various pharmaceuticals, food additives, and dyes.
2-Chlorobenzoic acid Chemical Properties
| Melting point | 138-140 °C (lit.) |
| Boiling point | 285 °C |
| density | 1.544 |
| vapor pressure | 0.001 hPa (25 °C) |
| refractive index | 1.5812 (estimate) |
| Fp | 173 °C |
| storage temp. | Store below +30°C. |
| solubility | cold water: soluble900 part |
| pka | 2.92(at 25℃) |
| form | Powder |
| color | White to off-white |
| PH | 3.4 (0.2g/l, H2O, 20℃) |
| Water Solubility | soluble in hot water |
| Merck | 142124 |
| BRN | 907340 |
| Stability: | Stable, combustible. Incompatible with strong bases, strong oxidizing agents. |
| InChI | 1S/C7H5ClO2/c8-6-4-2-1-3-5(6)7(9)10/h1-4H,(H,9,10) |
| InChIKey | IKCLCGXPQILATA-UHFFFAOYSA-N |
| SMILES | OC(=O)c1ccccc1Cl |
| CAS DataBase Reference | 118-91-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzoic acid, 2-chloro-(118-91-2) |
| EPA Substance Registry System | o-Chlorobenzoic acid (118-91-2) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36-36/37/38 |
| Safety Statements | 26-37/39 |
| WGK Germany | 2 |
| RTECS | DG4976000 |
| Autoignition Temperature | 530 °C |
| Hazard Note | Irritant |
| TSCA | TSCA listed |
| HS Code | 29163900 |
| Storage Class | 11 - Combustible Solids |
| Hazard Classifications | Eye Irrit. 2 |
| Skin Irrit. 2 | |
| Hazardous Substances Data | 118-91-2(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 2465 mg/kg |
