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528-15-4

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528-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 528-15-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,2 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 528-15:
(5*5)+(4*2)+(3*8)+(2*1)+(1*5)=64
64 % 10 = 4
So 528-15-4 is a valid CAS Registry Number.

528-15-4Relevant articles and documents

Preparation of functionalized aryl magnesium reagents by the addition of magnesium aryl thiolates and amides to arynes

Lin, Wenwei,Sapountzis, Ioannis,Knochel, Paul

, p. 4258 - 4261 (2007/10/03)

(Chemical Equation Presented) Reactive arynes, which are readily generated by the reaction of ortho-iocloarylsulfonates with iPrMgCl, undergo the smooth addition of various magnesium nucleophiles like magnesium thiolates, selenides, and amides. In all cases the resulting functionalized aryl magnesium species can be trapped by an electrophile leading to highly functionalized aromatic compounds (see scheme).

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