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1257844-69-1

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1257844-69-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1257844-69-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,8,4 and 4 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1257844-69:
(9*1)+(8*2)+(7*5)+(6*7)+(5*8)+(4*4)+(3*4)+(2*6)+(1*9)=191
191 % 10 = 1
So 1257844-69-1 is a valid CAS Registry Number.

1257844-69-1Downstream Products

1257844-69-1Relevant articles and documents

A step toward direct fullerene synthesis: C60 fullerene precursors with fluorine in key positions

Kabdulov, Mikhail A.,Amsharov, Konstantin Yu.,Jansen, Martin

scheme or table, p. 8587 - 8593 (2010/11/18)

Several fluorine containing polycyclic aromatic hydrocarbons with exact carbon atom topology of the C60 fullerene have been synthesized. Different numbers of fluorine atoms were introduced in the key positions, as needed for an efficient intramolecular condensation to the fullerene molecule. The polycyclic aromatic compounds obtained represent attractive precursors for rational, high-yield fullerene synthesis by flash vacuum pyrolysis.

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