2,2'-Diaminodiphenyl disulphide
Synonym(s):2,2′-Diaminodiphenyl disulfide;2,2′-Dithiodianiline;Bis(2-aminophenyl) disulfide
- CAS NO.：1141-88-4
- Empirical Formula: C12H12N2S2
- Molecular Weight: 248.37
- MDL number: MFCD00007703
- EINECS: 214-529-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-12 09:22:35
What is 2,2'-Diaminodiphenyl disulphide?
Chemical properties
Off-white to light yellow powder
The Uses of 2,2'-Diaminodiphenyl disulphide
2,2'-Diaminodiphenyl disulfide, is used as an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff. It is also used as a primary and secondary intermediate.
Synthesis Reference(s)
Synthetic Communications, 15, p. 1, 1985 DOI: 10.1080/00397918508063771
Tetrahedron Letters, 31, p. 3591, 1990 DOI: 10.1016/S0040-4039(00)94450-2
General Description
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Safety Profile
Poison by intravenous and intraperitoneal routes. Moderately toxic by ingestion. A severe eye irritant. When heated to decomposition it emits very toxic fumes of NOx, and SOx,.
Properties of 2,2'-Diaminodiphenyl disulphide
| Melting point: | 91-92 °C(lit.) |
| Boiling point: | 398.0±27.0 °C(Predicted) |
| Density | 1.2716 (rough estimate) |
| refractive index | 1.5700 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | Soluble in hot methanol- almost transparent. |
| form | powder to crystal |
| pka | 2.81±0.10(Predicted) |
| color | Light yellow to Amber to Dark green |
| BRN | 914032 |
| CAS DataBase Reference | 1141-88-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzenamine, 2,2'-dithiobis-(1141-88-4) |
| EPA Substance Registry System | Benzenamine, 2,2'-dithiobis- (1141-88-4) |
Safety information for 2,2'-Diaminodiphenyl disulphide
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Environment GHS09 |
| GHS Hazard Statements |
H319:Serious eye damage/eye irritation H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P273:Avoid release to the environment. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 2,2'-Diaminodiphenyl disulphide
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