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98954-18-8

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98954-18-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98954-18-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,9,5 and 4 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98954-18:
(7*9)+(6*8)+(5*9)+(4*5)+(3*4)+(2*1)+(1*8)=198
198 % 10 = 8
So 98954-18-8 is a valid CAS Registry Number.

98954-18-8Relevant articles and documents

Extended conjugation in enynones, dienones and related species: A theoretical and experimental study. the molecular structures of 3-ethynyl-2-methylcyclopent-2-enone, 3-ethenyl-2-methylcyclopent-2-enone and 3-ethyl-2-methylcyclopent-2-enone, as studied by

Traetteberg, Marit,Liebman, Joel F.,Hulce, Martin,Bonn, Anthony A.,Rogers, Donald W.

, p. 1925 - 1932 (2007/10/03)

The molecular structures of three 3-R substituted conjugated enones have been determined by the gas electron difraction method. Depending on the nature of the substituents the molecules represent examples of molecules with no additional conjugation, relat

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