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17826-68-5

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17826-68-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17826-68-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,2 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 17826-68:
(7*1)+(6*7)+(5*8)+(4*2)+(3*6)+(2*6)+(1*8)=135
135 % 10 = 5
So 17826-68-5 is a valid CAS Registry Number.

17826-68-5Downstream Products

17826-68-5Relevant articles and documents

AROMATIC POLYFLUORO COMPOUNDS LVII . NUCLEOPHILIC REPLACEMENT REACTIONS OF 1,2,3,5-TETRAFLUORO-4-NITROBENZENE, 1,2,3,5-TETRAFLUORODINITROBENZENE AND 1-BROMO-2,3,4,6-TETRAFLUORO-5-NITROBENZENE

Burdon, James,Fisher, Derek,Parsons Ian W.,Tatlow, John Colin

, p. 507 - 514 (1981)

The title compounds have been treated with dimethylamine and sodium methoxide in polar solvents, and the isomer ratios of the products determined.Although attack para to the nitro group is in each case favoured over ortho, it is so by only surprisingly small factors.Structures have mostly been assigned spectroscopically, supported in one case by a chemical proof.The dinitrotetrafluorobenzene is activated sufficiently to react directly with methanol at 35 deg C, with a pseudo first order rate constant of (7 +/- 1) * 10-5 s-1.

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