Cas 6731-20-0,3a,4,7,7a-Tetrahydroinden

6731-20-0

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Basic information

Product Name: 3a,4,7,7a-Tetrahydroinden
Synonyms: 3a,4,7,7a-Tetrahydroinden
CAS NO:6731-20-0
Molecular Formula:
Molecular Weight: 122.21
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: 3a,4,7,7a-Tetrahydroinden(CAS DataBase Reference)
NIST Chemistry Reference: 3a,4,7,7a-Tetrahydroinden(6731-20-0)
EPA Substance Registry System: 3a,4,7,7a-Tetrahydroinden(6731-20-0)

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: 6731-20-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6731-20-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,7,3 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 6731-20:
(6*6)+(5*7)+(4*3)+(3*1)+(2*2)+(1*0)=90
90 % 10 = 0
So 6731-20-0 is a valid CAS Registry Number.

6731-20-0Upstream product

3048-65-5 cis-bicyclo<4.3.0>nona-3,7-diene

6731-20-0Downstream Products

85-44-9 phthalic anhydride

6731-20-0Relevant academic research and scientific papers

ADDITION OF HYDROGEN BROMIDE TO CIS-BICYCLONONA-3,7-DIENE. SYNTHESIS OF 5-BROMOBREXANE AND BREXAN-5-ONE

Dubitskaya, N. F.,Khaibullina, E. A.,Pekhk, T. I.,Grishin, Yu. K.,Belikova, N. A.,Bobyleva, A. A.

, p. 1589 - 1593 (2007/10/02)

The addition of hydrogen bromide to cis-bicyclonona-3,7-diene takes place preferentially but not selectively at the double bond of the six-membered ring.In the case of gaseous hydrogen bromide only bromobicyclononenes are formed, but with 48percent aqueous hydrobromic acid the reaction is accompanied by transannular cyclization and by the formation of endo- and exo-5-bromobrexanes (16-20percent).A method is proposed for the production of brexan-5-one.

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