Cas 81667-78-9,Toluene-4-sulfonic acid (1R,2aR,2bS,4aS)-4b-cyano-octahydro-cyclopropa[cd]pentalen-1-yl ester

81667-78-9

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Basic information

Product Name: Toluene-4-sulfonic acid (1R,2aR,2bS,4aS)-4b-cyano-octahydro-cyclopropa[cd]pentalen-1-yl ester
Synonyms:
CAS NO:81667-78-9
Molecular Formula:
Molecular Weight: 303.382
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: Toluene-4-sulfonic acid (1R,2aR,2bS,4aS)-4b-cyano-octahydro-cyclopropa[cd]pentalen-1-yl ester(CAS DataBase Reference)
NIST Chemistry Reference: Toluene-4-sulfonic acid (1R,2aR,2bS,4aS)-4b-cyano-octahydro-cyclopropa[cd]pentalen-1-yl ester(81667-78-9)
EPA Substance Registry System: Toluene-4-sulfonic acid (1R,2aR,2bS,4aS)-4b-cyano-octahydro-cyclopropa[cd]pentalen-1-yl ester(81667-78-9)

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: 81667-78-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 81667-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,6 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81667-78:
(7*8)+(6*1)+(5*6)+(4*6)+(3*7)+(2*7)+(1*8)=159
159 % 10 = 9
So 81667-78-9 is a valid CAS Registry Number.

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81667-78-9Relevant academic research and scientific papers

THE EFFECT OF THE α-CYANO MOIETY ON NEIGHBORING GROUP PARTICIPATION BY THE CYCLOPROPYL GROUP

Gassman, Paul G.,Talley, John J.

, p. 5253 - 5256 (2007/10/02)

H/α-CN rate ratios have been derived for the solvolysis of sulfonate esters of endo-tricyclo2,4>octan anti-8-ol and tricyclo2,6>heptan-3-ol.The role of the α-cyano moiety in the stabilization of highly delocalized cations has been evaluated.

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