Diphenylene sulphide
Dibenzothiophene
CAS: 132-65-0
Molecular Formula: C12H8S
Diphenylene sulphide - Names and Identifiers
| Name | Dibenzothiophene |
| Synonyms | 9-Thiafluorene Dibenzothiophe Dibenzothiophene Biphenylensulfide Diphenylene sulphide dibenzo[b,d]thiophene Dibenzothiophene 132-65-0 2,2'-biphenylylenesulfide 2,2'-Biphenylylene sulfide [1,1'-Biphenyl]-2,2'-diyl sulfide DibenzthiopheneDiphenylene Sulfide |
| CAS | 132-65-0 |
| EINECS | 205-072-9 |
| InChI | InChI=1/C12H8S/c1-3-7-11-9(5-1)10-6-2-4-8-12(10)13-11/h1-8H |
Diphenylene sulphide - Physico-chemical Properties
| Molecular Formula | C12H8S |
| Molar Mass | 184.26 |
| Density | 1.1410 (rough estimate) |
| Melting Point | 97-100 °C (lit.) |
| Boling Point | 332-333 °C (lit.) |
| Flash Point | 170 °C |
| Water Solubility | SOLUBLE |
| Solubility | Easily soluble in ethanol and benzene, soluble in water and ether. |
| Vapor Presure | 0.000281mmHg at 25°C |
| Appearance | Yellow to Green Solid |
| Color | white |
| BRN | 121101 |
| PH | 7 (50g/l, H2O, 20℃)(slurry) |
| Storage Condition | Store below +30°C. |
| Refractive Index | 1.6500 (estimate) |
| MDL | MFCD00004969 |
Diphenylene sulphide - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S36 - Wear suitable protective clothing. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S60 - This material and its container must be disposed of as hazardous waste. |
| UN IDs | 2811 |
| WGK Germany | 3 |
| RTECS | HQ3490550 |
| TSCA | Yes |
| HS Code | 29349990 |
| Hazard Class | 9 |
| Packing Group | III |
Diphenylene sulphide - Reference
| Reference Show more | 1. [IF=2.496] Miao Qiaoyuan et al."Hierarchical macro-mesoporous Mo/Al2O3 catalysts prepared by dual-template method for oxidative desulfurization."J Porous Mat. 2021 Dec;28(6):1895-1906 |
Diphenylene sulphide - Introduction
Soluble in water, easily soluble in ethanol, benzene and chloroform.
Last Update：2022-10-16 17:13:23
Diphenylene sulphide - Reference Information
| (IARC) carcinogen classification | 3 (Vol. 103) 2013 |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| introduction | dibenzothiophene and its alkyl derivatives (DBTs) are considered to be the most difficult sulfides in diesel distillates and are important model compounds in diesel hydrodesulfurization research. therefore, using dibenzothiophene, 4-MDBT and 4 ,6-DMDBT as model compounds for deep desulfurization of oil products has become a hot research topic at home and abroad. In addition, dibenzothiophene can also be used as an additive for rose fragrance. |
| preparation method | 2-[5-(4-dibenzo [B, d] thienyl)] thiophene aldehyde, methyl cyanoacetate, hexahydropiperidine and anhydrous toluene are added to the reaction container, and stirred and reacted at 105-115 ℃ for 5-7 hours, wherein 2-[5-(4-dibenzo [B, d] thienyl)] The ratio of thienaldehyde, methyl cyanoacetate and hexahydropiperidine is (19-21):(21-23):1; after the reaction is over, the organic solvent in the reaction system is concentrated, filtered, the filter cake is taken, and recrystallized with a mixed solvent of chloroform and petroleum ether. |
| Biological activity | Dibenzothiophene is an organic synthetic intermediate, which is fused by two benzene rings to a central thiophene ring. |
| spontaneous combustion temperature | >450°C |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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