"9H-Fluorene,9,9'-(1,2-ethanediylidene)bis-" is a chemical compound with the molecular formula C20H16. It is a symmetrical bis-fluorene derivative, where two fluorene molecules are connected by an ethanediyl (-CH2-CH2-) bridge. 9H-Fluorene,9,9'-(1,2-ethanediylidene)bis- is known for its rigid structure and is often used in the synthesis of various organic compounds, particularly in the field of materials science for the development of polymers and other advanced materials. It is also relevant in the study of molecular conformation and the design of molecular machines due to its unique structure.
4551-02-4
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Basic information
- Product Name: 9H-Fluorene,9,9'-(1,2-ethanediylidene)bis-
- Synonyms: Ethane,1,2-difluoren-9-ylidene- (6CI,7CI); Ethane, difluoren-9-ylidene- (8CI);1,4-Bis(biphenylene)butadiene; Dibiphenylenebutadiene; NSC 38800
- CAS NO:4551-02-4
- Molecular Formula: C28H18
- Molecular Weight: 354.451
- EINECS: N/A
- Product Categories: N/A
- Mol File: 4551-02-4.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 9H-Fluorene,9,9'-(1,2-ethanediylidene)bis-(CAS DataBase Reference)
- NIST Chemistry Reference: 9H-Fluorene,9,9'-(1,2-ethanediylidene)bis-(4551-02-4)
- EPA Substance Registry System: 9H-Fluorene,9,9'-(1,2-ethanediylidene)bis-(4551-02-4)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 4551-02-4(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 4551-02-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,5 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.Calculate Digit Verification of CAS Registry Number 4551-02:
(6*4)+(5*5)+(4*5)+(3*1)+(2*0)+(1*2)=74
74 % 10 = 4
So 4551-02-4 is a valid CAS Registry Number.
4551-02-4Upstream product
4551-02-4Downstream Products
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9H-Fluorene,9,9'-(1,2-ethanediylidene)bis-
