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199731-27-6

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199731-27-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 199731-27-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,9,7,3 and 1 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 199731-27:
(8*1)+(7*9)+(6*9)+(5*7)+(4*3)+(3*1)+(2*2)+(1*7)=186
186 % 10 = 6
So 199731-27-6 is a valid CAS Registry Number.

199731-27-6Downstream Products

199731-27-6Relevant articles and documents

SYNTHESIS AND STEREOCHEMISTRY OF TROPANE 6-SPIRO-HYDANTOINS

Villacampa, Mercedes,Martinez, Manuel,Gonzalez-Trigo, Gregorio,Soellhuber, Monica M.

, p. 1885 - 1895 (2007/10/02)

The synthesis of several representatives of the previously unkown N-alkyl-nortropane-6-spirohydantoin ring system by Bucherer-Bergs reaction of 8-alkyl-8-azabicyclooctan-6-ones is described. 3-Oxo derivatives of the parent structure were also prepared.The stereochemical outcome of the Bucherer-Bergs reaction is discussed on the basis 1H-nmr and 13C-nmr data.

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