256-81-5
256-81-5 structure
- Name: 5H-dibenzo[a,d]cycloheptene
- Chemical Name: 11H-dibenzo[2,1-a:2',1'-e][7]annulene
- CAS Number: 256-81-5
- Molecular Formula: C15H12
- Molecular Weight: 192.25600
- Catalog: analytical chemistry Standard Pharmacopoeia Standards and Magazine Standards
- Create Date: 2018-09-28 12:46:27
- Modify Date: 2026-07-01 13:39:58
| Name | 11H-dibenzo[2,1-a:2',1'-e][7]annulene |
|---|---|
| Synonyms |
Einecs -5
5H-DIBENZO(A,D)CYCLOHEPTENE 5H-Dibenzo[a,d]annulene (Dibenzo Cyprohtadine Related Compound A (40 mg) (5H-dibenzo[a,d]cyclohtene) (AS) dibenzo<ad>cycloheptene 11H-dibenzo[2,1-a:2,1-e]annulene Dibenzocyclohtatriene dibenzosuberene Dibenzocyclohtene CRS 5H-Dibenzo[a,d]annulene Cyprohtadine Related Compound A Dibenzocycloheptatriene Cyprohtadine Impurity 1（Cyprohtadine Impurity A） 5H-dibenzo[a,d][7]annulene Cyprohtadine Impurity A 5H-Dibenzo<a,d>cyclohepten Cyprohtadine Hydrochloride Impurity A Dibenzo[a,d]cycloheptatriene 5H-Dibenzo(a,d)cycloheptene 2,3:6,7-dibenzocyclohepta-2,4,6-triene 5h-dibenzo[a,d]annulene(dibenzocyclohtene) Cyprohtadine Related Compound A (40 mg) (5H-dibenzo[a,d]cyclohtene) 5H-Dibenzo[α,d]cyclohtene Cyprohtadine Impurity 11 5H-Dibenzo[a,d]cycloheptene tricyclo[9.4.0.0,3,8]pentadeca-1,3,4,6,9,12,1 4-htaene Cyprohtadine Related Compound A (5H-dibenzo[a,d]cyclohtene) 5H-dibenzo[a,d]cyclohtene Cyprohtadine Impurity A RC A) |
| Density | 1.085g/cm3 |
|---|---|
| Boiling Point | 322.1ºC at 760mmHg |
| Molecular Formula | C15H12 |
| Molecular Weight | 192.25600 |
| Flash Point | 155.2ºC |
| Exact Mass | 192.09400 |
| LogP | 3.76120 |
| Vapour Pressure | 0.000536mmHg at 25°C |
| Index of Refraction | 1.625 |
| Symbol |
GHS07 |
|---|---|
| Signal Word | Warning |
| Hazard Statements | H302-H413 |
| Precautionary Statements | P301 + P312 + P330 |
| RIDADR | NONH for all modes of transport |
| HS Code | 2902909090 |
| Precursor 9 | |
|---|---|
| DownStream 9 | |
![5-[(10,11-dihydro-5H-dibenzo[a,d]cyclohepten-5-yl)oxy]-10,11-dihydro-5H-dibenzo[a,d]cycloheptene structure](https://image.chemsrc.com/caspic/324/83693-20-3.png)
![4,5-dihydro-1H-dibenzo[a,d]cycloheptene structure](https://image.chemsrc.com/caspic/278/73373-27-0.png)
![5-[(5H-dibenzo[a,d]cyclohepten-5-yl)oxy]-5H-dibenzo[a,d]cycloheptene structure](https://image.chemsrc.com/caspic/190/35066-77-4.png)
![5-diazo-10,11-dihydro-5H-Dibenzo[A,D]cycloheptene structure](https://image.chemsrc.com/caspic/105/6141-55-5.png)
![5H-Dibenzo[a,d]cycloheptene,10,11-dihydro structure](https://image.chemsrc.com/caspic/471/833-48-7.png)
![9H-benzo[7]annulene structure](https://image.chemsrc.com/caspic/080/264-08-4.png)
| HS Code | 2902909090 |
|---|---|
| Summary | 2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |