694-87-1

Name Bicyclo[4.2.0]octa-1,3,5-triene
CAS 694-87-1
Molecular Formula C8H8
MDL Number MFCD01321219
Molecular Weight 104.15
MOL File 694-87-1.mol
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Chemical Properties

Boiling point  150 °C/748 mmHg (lit.)
density  0.957 g/mL at 25 °C(lit.)
refractive index  n20/D 1.541(lit.)
Fp  97 °F
storage temp.  Sealed in dry,Room Temperature
form  clear liquid
color  Colorless to Almost colorless
InChI InChI=1S/C8H8/c1-2-4-8-6-5-7(8)3-1/h1-4H,5-6H2
InChIKey UMIVXZPTRXBADB-UHFFFAOYSA-N
SMILES C12C(CC1)=CC=CC=2
Uses
Benzocyclobutene (BCB) is composed of a benzene ring fused to a cyclobutane ring (chemical formula C8H8). It is frequently used to create photosensitive polymers. BCB-based polymer dielectrics may be spun on various substrates, with good step coverage properties that make them useful to planarize uneven topographies. Applications include wafer bonding, optical interconnects, semihermetic package sealing, passivation, and low-k dielectrics. BCB has been also reported as a material with good biocompatibility, being used in intracortical neural implants and other biomedical applications.
CAS DataBase Reference 694-87-1(CAS DataBase Reference)
NIST Chemistry Reference Bicyclo[4.2.0]octa-1,3,5-triene(694-87-1)
EPA Substance Registry System 694-87-1(EPA Substance)

Safety Data

Symbol(GHS)  Health Hazard (GHS08)Flame (GHS02)
GHS08,GHS02
Signal word  Warning
Hazard statements  H226-H304
Precautionary statements  P210-P233-P240-P241+P242+P243-P280-P301+P310+P331-P303+P361+P353-P370+P378-P403+P235-P405-P501
Risk Statements 
R10:Flammable.
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
RIDADR  UN 3295 3/PG 3
WGK Germany  3
HazardClass  3
PackingGroup  Ⅲ
HS Code  29029090
Storage Class 3 - Flammable liquids
Hazard Classifications Flam. Liq. 3

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