Cas 139371-89-4,Benzene, 2-bromo-1,4-bis[2-(3-bromo-2,5-dimethoxyphenyl)ethenyl]-

139371-89-4

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Basic information

Product Name: Benzene, 2-bromo-1,4-bis[2-(3-bromo-2,5-dimethoxyphenyl)ethenyl]-
Synonyms:
CAS NO:139371-89-4
Molecular Formula: C26H23Br3O4
Molecular Weight: 639.178
EINECS: N/A
Product Categories: N/A

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: Benzene, 2-bromo-1,4-bis[2-(3-bromo-2,5-dimethoxyphenyl)ethenyl]-(CAS DataBase Reference)
NIST Chemistry Reference: Benzene, 2-bromo-1,4-bis[2-(3-bromo-2,5-dimethoxyphenyl)ethenyl]-(139371-89-4)
EPA Substance Registry System: Benzene, 2-bromo-1,4-bis[2-(3-bromo-2,5-dimethoxyphenyl)ethenyl]-(139371-89-4)

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: 139371-89-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 139371-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,7 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139371-89:
(8*1)+(7*3)+(6*9)+(5*3)+(4*7)+(3*1)+(2*8)+(1*9)=154
154 % 10 = 4
So 139371-89-4 is a valid CAS Registry Number.

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139371-89-4Relevant academic research and scientific papers

BROMINE AUXILIARIES IN PHOTOSYNTHESES OF HELICENES

Liu, Longbin,Katz, Thomas J.

, p. 6831 - 6834 (1991)

Bromine substituents on benzene rings direct photocyclizations away from their ortho positions.This principle prevents helicenes from photocyclizing and methoxyls from photoeliminating.It makes possible the photosynthesis of helicene and of a tetramethoxy-derivative of helicene.

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