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140141-58-8

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140141-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140141-58-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,1,4 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 140141-58:
(8*1)+(7*4)+(6*0)+(5*1)+(4*4)+(3*1)+(2*5)+(1*8)=78
78 % 10 = 8
So 140141-58-8 is a valid CAS Registry Number.

140141-58-8Relevant articles and documents

SYNTHESIS OF AROMATIC POLYHALOGENATED HALOMETHYL COMPOUNDS

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Page/Page column 15-16, (2010/02/15)

The present invention discloses a process for the preparation of highly pure Pentabromobenzyl bromide, PBB-Br, wherein the benzylic bromination reaction is carried out in a suitable organic solvent in the presence of water and wherein the reaction temperature is such that it is sufficient to activate the initiator but not high enough to consume a substantial amount thereof.

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