5H-dibenzo[a,d]cycloheptene

二苯并环庚烯

Also known as: 11H-dibenzo[2,1-a:2',1'-e][7]annulene, 11H-dibenzo[2,1-a:2,1-e][7]annulene, 2,3:6,7-dibenzocyclohepta-2,4,6-triene, 5H-DIBENZO(A,D)CYCLOHEPTENE, 5H-Dibenzo(a,d)cycloheptene, 5H-Dibenzo<a,d>cyclohepten, 5H-Dibenzo[a,d][7]annulene, 5H-Dibenzo[a,d]cycloheptene, 5H-dibenzo[a,d][7]annulene, Cyproheptadine EP Impurity A, Cyproheptadine Hydrochloride EP IMpurity A, Cyproheptadine Related Compound A (40 mg) (5H-dibenzo[a,d]cycloheptene) (AS), Dibenzo[a,d]cycloheptatriene, Dibenzocycloheptatriene, Einecs 205-969-5, dibenzo<ad>cycloheptene, dibenzosuberene

5H-dibenzo[a,d]cycloheptene (CAS 256-81-5) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H12 and a molecular weight of 192.25600 g/mol. It is also known as 11H-dibenzo[2,1-a:2',1'-e][7]annulene, 11H-dibenzo[2,1-a:2,1-e][7]annulene and 2,3:6,7-dibenzocyclohepta-2,4,6-triene. Key properties include a boiling point of 322.1ºC at 760mmHg, a density of 1.085g/cm3 and a flash point of 155.2ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

256-81-5

Jingsj CID

J-1501671-1

Molecular Formula

C₁₅H₁₂

Chinese Name

二苯并环庚烯

Molecular Weight

192.25600 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026