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148454-99-3

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148454-99-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148454-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,4,5 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 148454-99:
(8*1)+(7*4)+(6*8)+(5*4)+(4*5)+(3*4)+(2*9)+(1*9)=163
163 % 10 = 3
So 148454-99-3 is a valid CAS Registry Number.

148454-99-3Relevant articles and documents

2-fluoropyrazines process for their preparation, and their use in liquid-crystalline mixtures

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, (2008/06/13)

2-Fluoropyrazines, process for their preparation, and their use in liquid-crystalline mixtures A 2-fluoropyrazine of the formula (I) STR1 in which the symbols have the following meanings: R1 and R2, independently of one another, are, for example, H or straight-chain or branched alkyl, A1, A2, A3 and A4 are identical or different and are, for example, 1,4-phenylene or M1, M2, M3 and M4 are identical or different and are, for example, --0-- or --CO--O--, R3, R4, R6 and R7, independently of one another, are, for example, H or straight-chain or branched alkyl, M5 is, for example, --O--CO-- or a single bond, k, l, m, n, o, p, q and r are zero or one, with the condition that the sum of k+m+p+r is less than 4 and greater than zero, can advantageously be employed as a component in liquid-crystal mixtures.

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