Cas 497845-33-7,Silane, [[2-[[3,6-bis[[dimethyl(1,1,2-trimethylpropyl)silyl]ethynyl]-2-[[2-[[dimethyl( 1,1,2-trimethylpropyl)silyl]ethynyl]phenyl]ethynyl]phenyl]ethynyl]-3-ethynyl- 1,4-phenylene]di-2,1-ethynediyl]bis[dimethyl(1,1,2-trimethylpropyl)-

497845-33-7

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Basic information

Product Name: Silane, [[2-[[3,6-bis[[dimethyl(1,1,2-trimethylpropyl)silyl]ethynyl]-2-[[2-[[dimethyl( 1,1,2-trimethylpropyl)silyl]ethynyl]phenyl]ethynyl]phenyl]ethynyl]-3-ethynyl- 1,4-phenylene]di-2,1-ethynediyl]bis[dimethyl(1,1,2-trimethylpropyl)-
Synonyms:
CAS NO:497845-33-7
Molecular Formula: C74H104Si5
Molecular Weight: 1134.07
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: Silane, [[2-[[3,6-bis[[dimethyl(1,1,2-trimethylpropyl)silyl]ethynyl]-2-[[2-[[dimethyl( 1,1,2-trimethylpropyl)silyl]ethynyl]phenyl]ethynyl]phenyl]ethynyl]-3-ethynyl- 1,4-phenylene]di-2,1-ethynediyl]bis[dimethyl(1,1,2-trimethylpropyl)-(CAS DataBase Reference)
NIST Chemistry Reference: Silane, [[2-[[3,6-bis[[dimethyl(1,1,2-trimethylpropyl)silyl]ethynyl]-2-[[2-[[dimethyl( 1,1,2-trimethylpropyl)silyl]ethynyl]phenyl]ethynyl]phenyl]ethynyl]-3-ethynyl- 1,4-phenylene]di-2,1-ethynediyl]bis[dimethyl(1,1,2-trimethylpropyl)-(497845-33-7)
EPA Substance Registry System: Silane, [[2-[[3,6-bis[[dimethyl(1,1,2-trimethylpropyl)silyl]ethynyl]-2-[[2-[[dimethyl( 1,1,2-trimethylpropyl)silyl]ethynyl]phenyl]ethynyl]phenyl]ethynyl]-3-ethynyl- 1,4-phenylene]di-2,1-ethynediyl]bis[dimethyl(1,1,2-trimethylpropyl)-(497845-33-7)

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: 497845-33-7(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 497845-33-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,8,4 and 5 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 497845-33:
(8*4)+(7*9)+(6*7)+(5*8)+(4*4)+(3*5)+(2*3)+(1*3)=217
217 % 10 = 7
So 497845-33-7 is a valid CAS Registry Number.

497845-33-7Upstream product

497845-33-7Downstream Products

497845-35-9 1-{2-[3,6-diethynyl-2-(2-ethynyl-phenylethynyl)-phenylethynyl]-3,6-diethynyl-phenylethynyl}-2-(3-methoxy-prop-1-ynyl)-biphenylene

497845-33-7Relevant academic research and scientific papers

Total syntheses of angular [7]-, [8]-, and [9]phenylene by triple cobalt-catalyzed cycloisomerization: Remarkably flexible heliphenes

Han, Sangdon,Anderson, D. Ryan,Bond, Andrew D.,Chu, Hiufung V.,Disch, Raymond L.,Holmes, Daniel,Schulman, Jerome M.,Teat, Simon J.,Vollhardt, K. Peter C.,Whitener, Glenn D.

, p. 3227 - 3230 (2007/10/03)

Six of the final cyclobutadiene rings in angular [8]phenylene and [9]phenylene (1) are closed in an unprecedented cobalt-catalyzed triple cyclization of appropriate nonaynes. These strained products are the largest known phenylenes and display unusual con

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