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1258781-81-5

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1258781-81-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258781-81-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,7,8 and 1 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1258781-81:
(9*1)+(8*2)+(7*5)+(6*8)+(5*7)+(4*8)+(3*1)+(2*8)+(1*1)=195
195 % 10 = 5
So 1258781-81-5 is a valid CAS Registry Number.

1258781-81-5Downstream Products

1258781-81-5Relevant articles and documents

Achiral and-amino acid derived dicationic imidazoliophanes

Marek, Ales,Kulhanek, Jiri,Schweizer,Bures, Filip

supporting information; experimental part, p. 3188 - 3194 (2010/11/02)

Achiral and chiral imidazoliophanes were prepared by N-alkylation of chiral imidazole derivatives featuring an-amino acid motif and subsequent double quarternization of the imidazole N3-position of the corresponding precyclophanes. Eight new optically pure imidazoliophanes were synthesized in good yields, whereas the molecular structure of one achiral analogue was confirmed by X-ray analysis. Georg Thieme Verlag Stuttgart - New York.

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