Substance profile
1,2-Benzisothiazol-3(2H)-one
1,2-Benzisothiazol-3(2H)-one is an off-white to yellowish solid.
01 · Identification
What 1,2-Benzisothiazol-3(2H)-one is
1,2-Benzisothiazol-3(2H)-one is an off-white to yellowish solid. Its molecular formula is C7H5NOS and its molecular weight is 151.19 g/mol. It boils at 328 °C, melts at 157 °C.
Under the GHS it carries the signal word Danger.
Other names for 1,2-Benzisothiazol-3(2H)-one
- 1,2-benzisothiazolin-3-one
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H330 | Fatal if inhaled. |
| H302 | Harmful if swallowed. |
| H315 | Causes skin irritation. |
| H318 | Causes serious eye damage. |
| H317 | May cause an allergic skin reaction. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P261, P264, P270, P271, P272, P273, P280, P301, P302, P304, P305, P310, P312, P313, P330, P332, P333, P338, P352, P391, P501
03 · Physical and chemical properties
1,2-Benzisothiazol-3(2H)-one properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 327.6 °C (621.7 °F) | HSDB | |
| Melting point | 156.6 °C (313.9 °F) | HSDB | |
| 157.5 °C (315.5 °F) | range, midpoint shown | HMDB | |
| Density | 1.483 g/cm³ | at 20 °C | HSDB |
| Solubility | In water, 1.1 g/L at 20 °C; 0.938 g/L at 20 °C and pH 4.8; 1.288 g/L at 20 deg and pH 6.7; 1.651 g/L at 20 °C at pH 9.1; 1.198 g/L at 30 °C pH 4.8 | at 20 °C | HSDB |
| 21.7 [ug/mL] (The mean of the results at pH 7.4) | Sanford-Burnham Center for Chemical Genomics | ||
| Vapor pressure | 0.00000278 mmHg | at 25 °C | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 1,2-Benzisothiazol-3(2H)-one
Storage conditions
Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Storage class (TRGS 510): Non Combustible Solids.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible materials: Strong oxidizing agents.
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check 1,2-Benzisothiazol-3(2H)… in the storage compatibility matrix →