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117343-45-0

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117343-45-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 117343-45-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,3,4 and 3 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 117343-45:
(8*1)+(7*1)+(6*7)+(5*3)+(4*4)+(3*3)+(2*4)+(1*5)=110
110 % 10 = 0
So 117343-45-0 is a valid CAS Registry Number.

117343-45-0Relevant articles and documents

Halogenation Reaction of S-Aryl-Ssulfoximide

Yoshida, Toyokichi,Naruto, Shunsuke,Uno, Hitoshi,Nishimura, Haruki

, p. 1175 - 1182 (2007/10/02)

The reactions of the title free sulfoximide with N-bromosuccinimide (NBS) and N-chlorosuccinimide (NCS) afforded the corresponding α-halogenated "free" sulfoximides in good yields.The α-bromination proceeded via a facile N-bromination followed by a bromine transfer reaction of the resulting N-bromosulfoximide.The NCS chlorination, in contrast, proceeded via direct α-chlorination, not via N-chlorination.However, in the presence of potassium carbonate or silica gel N-chlorination occured predominantly in the NCS chlorination.Keywords---1,2-benzisoxazole; halogenation; N-halosulfoximide; α-halo sulfoximide; rearrangement; induction period

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