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167101-71-5

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167101-71-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 167101-71-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,1,0 and 1 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 167101-71:
(8*1)+(7*6)+(6*7)+(5*1)+(4*0)+(3*1)+(2*7)+(1*1)=115
115 % 10 = 5
So 167101-71-5 is a valid CAS Registry Number.

167101-71-5Downstream Products

167101-71-5Relevant articles and documents

Molecular structure and reactivity of the 1,2-dihydrocarbazol-4(3H)-one: X-ray crystal structure of N-methyl and N-(p-methylbenzenesulfonyl) derivatives

Rodriguez, Jose Gonzalo,Valle, Celestina del,Esteban-Calderon, Carmen,Martinez-Ripoll, Martin

, p. 249 - 258 (2007/10/02)

Synthesis and reactivity analysis of the 1,2-dihydrocarbazol-4(3H)-one, and the N-methyl, N-tosyl and 2,2-dimethyl derivatives have been carried out.Molecular structures of the N-methyl and N-tosyl derivatives have been analyzed by X-ray diffraction.Crystals of the N-methyl derivative are monoclinic, space group P21/c, a=8.868(1), b=16.652(1), c=7.5440(4) Angstroem, β=113.657(3).Crystals of the N-tosyl derivative are monoclinic, P21/c, a=12.0016(3), b=8.9178(2), c=16.0485(4) Angstroem, β=104.372(2).An extended conjugation from the carbonyl group to the nitrogen atom and an envelope conformation for the common cyclohexenone fragment are evident in both cases.Oximation and Beckmann rearrangement, and etherification of the carbonyl group is reported.KEY WORDS: Synthesis, reactivity, tetrahydrocarbazol-4-one.

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