![Bicyclo[2.2.1]hepta-2,5-diene](https://img.chemicalbook.com/CAS/GIF/121-46-0.gif)
A1421212
Bicyclo[2.2.1]hepta-2,5-diene , 98% , 121-46-0
Synonym(s):
2,5-Norbornadiene;Bicyclo[2.2.1]hepta-2,5-diene;NBD
CAS NO.：121-46-0
Empirical Formula: C7H8
Molecular Weight: 92.14
MDL number: MFCD00082301
EINECS: 204-472-0
Update time: 2022-07-08
PRODUCT Properties
| Melting point: | -20--19°C |
| Boiling point: | 89 °C(lit.) |
| Density | 0.906 g/mL at 25 °C(lit.) |
| vapor pressure | 69 hPa (20 °C) |
| refractive index | n |
| Flash point: | 12 °F |
| storage temp. | Store below +30°C. |
| solubility | Chloroform (Sparingly) |
| form | A liquid |
| color | Colorless to Almost colorless |
| Odor | Very diffusive, gassy-piney, camphoraceous-woody odor |
| explosive limit | 1.6-6.3%(V) |
| Water Solubility | Immiscible with water. |
| λmax | 195nm(EtOH)(lit.) |
| BRN | 506224 |
| Stability: | Volatile |
| InChIKey | SJYNFBVQFBRSIB-UHFFFAOYSA-N |
| LogP | 2.67 at 25℃ and pH7 |
| Surface tension | 64.3-64.4mN/m at 900μg/L and 20.3℃ |
Description and Uses
2,5-Norbornadiene is used as an intermediate in prostaglandin synthesis and shows anti-ethylene effect on plants. It acts as a starting material for the synthesis of diamantane and as an acetylene transfer agent for instance, in reaction with 3,6-di-2-pyridyl-1,2,4,5-tetrazine. It is also a useful dienophile in Diels-Alder reactions.
Safety
| Symbol(GHS) |  GHS02 |
| Signal word | Danger |
| Hazard statements | H225 |
| Precautionary statements | P210-P233-P240-P241-P242-P243 |
| Hazard Codes | F |
| Risk Statements | 11 |
| Safety Statements | 16-23 |
| RIDADR | UN 2251 3/PG 2 |
| WGK Germany | 2 |
| RTECS | RB6535000 |
| F | 13 |
| Autoignition Temperature | 350 °C |
| TSCA | Yes |
| HazardClass | 3 |
| PackingGroup | II |
| HS Code | 29021990 |
| Toxicity | LD50 orl-rat: 890 mg/kg SHELL* |
