trans-Stilbene
trans-Stilbene
CAS: 103-30-0
Molecular Formula: C6H5CH=CHC6H5
trans-Stilbene - Names and Identifiers
| Name | trans-Stilbene |
| Synonyms | trans-Stilbene 1,1'-ethene-1,1-diyldibenzene 1,1'-(E)-ethene-1,2-diyldibenzene 1,1'-(Z)-ethene-1,2-diyldibenzene trans-1,1-(1,2-Ethenediyl)bis(benzene) |
| CAS | 103-30-0 |
| EINECS | 203-098-5 |
| InChI | InChI=1/C14H12/c1-3-7-13(8-4-1)11-12-14-9-5-2-6-10-14/h1-12H/b12-11- |
trans-Stilbene - Physico-chemical Properties
| Molecular Formula | C6H5CH=CHC6H5 |
| Molar Mass | 180.25 |
| Density | 1.044g/cm3 |
| Melting Point | 122-126℃ |
| Boling Point | 307°C at 760 mmHg |
| Flash Point | 128.5°C |
| Solubility | Insoluble in water, slightly soluble in ethanol, soluble in ether and benzene. Can volatilize with water vapor. |
| Vapor Presure | 0.00135mmHg at 25°C |
| Appearance | White or light yellow crystals |
| Storage Condition | 2-8℃ |
| Refractive Index | 1.658 |
| MDL | MFCD00064300 |
| Physical and Chemical Properties | Chemical properties colorless needle crystals. Melting point 124-125 ℃, boiling point 305 ℃(9.5989kPa),166-167 ℃(1.6kPa), relative density 1.0281, refractive index 1.6264(17 ℃). Insoluble in water, slightly soluble in ethanol, soluble in ether and benzene. Can volatilize with water vapor. |
| Use | Use of raw materials for organic synthesis, can be made of diphenylacetylene, scintillation reagent, also used in the synthesis of fluorescent brighteners and dyes. |
trans-Stilbene - Risk and Safety
| Risk Codes | R22 - Harmful if swallowed R36 - Irritating to the eyes R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN3077 |
trans-Stilbene - Upstream Downstream Industry
trans-Stilbene - Nature
Open Data Verified Data
colorless needle-like crystals. The melting point was 124-125 °c. Boiling point of 305 deg C (9. 5989kPa). The relative density was 1. 0281. Refractive index 6264. Insoluble in water, slightly soluble in ethanol, soluble in ether and benzene.
Last Update：2025-06-10 22:55:16
trans-Stilbene - Preparation Method
Open Data Verified Data
obtained by dehydration of benzoin in the presence of zinc amalgam. A zinc amalgam was prepared, which was added to ethanol and benzoin, and then hydrochloric acid was added dropwise with stirring, maintaining the temperature at 15 °c. After 2 hours of addition, stirring was continued for 2H, cold water was added, and then the precipitate was filtered off, extracted with hot ethanol, cooled, crystallized, and recrystallized with ethanol to obtain a finished product.
Last Update：2022-01-01 10:39:44
trans-Stilbene - Application
Open Data Verified Data
organic synthesis raw materials, can be prepared by diphenylacetylene, dyes and fluorescent whitening agents.
Last Update：2025-08-19 16:24:40
trans-Stilbene - Safety
Open Data Verified Data
- inhalation of aerosol of this product leads to weight loss, epistaxis and leukopenia in rats. Mice were intraperitoneally injected with LD50 1150mg/kg; Mice were intravenously injected with LD50 34mg/kg. The risk of inhalation and entry into the gastrointestinal tract should be eliminated. The workplace should be well ventilated and the equipment should be closed. The operator should wear protective gear.
- the container shall be packed in solid wooden case, barrel and plastic barrel, lined with plastic bag or kraft paper bag, and the package shall be tightly sealed. The net weight of each piece shall not exceed 50kg.
Last Update：2022-01-01 10:39:44
trans-Stilbene - Nature
| storage conditions | Store below 30°C. |
| solubility | 0.00029g/l |
| morphology | Crystals or Crystalline Powder |
| color | White to slightly beige |
| Specific gravity | 0.97 |
| water solubility | Soluble in benzene and ether. Insoluble in water. |
| Merck | 14,8817 |
| BRN | 1616740 |
| InChIKey | PJANXHGTPQOBST-VAWYXSNFSA-N |
| EPA chemical information | trans-Stilbene (103-30-0) |
Last Update：2024-04-10 22:29:15
trans-Stilbene - Security information
| WGK Germany | 2 |
| RTECS number | WJ4926500 |
| TSCA | Yes |
| HazardClass | 9 |
| PackingGroup | III |
| customs code | 29029090 |
| toxic substance data | 103-30-0(Hazardous Substances Data) |
Last Update：2024-04-10 22:29:15
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View History
Raw Materials for trans-Stilbene
BENZAL BROMIDE
CIS-STILBENE
2-Phenylacetophenone
1,2-diphenyl-1,2-disodiumethane
Undecenoic acid
TRIISOPROPYLPHOSPHINE
CIS-STILBENE
2-Phenylacetophenone
1,2-diphenyl-1,2-disodiumethane
Undecenoic acid
TRIISOPROPYLPHOSPHINE
Downstream Products for trans-Stilbene