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107774-55-0

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107774-55-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 107774-55-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,7,7 and 4 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 107774-55:
(8*1)+(7*0)+(6*7)+(5*7)+(4*7)+(3*4)+(2*5)+(1*5)=140
140 % 10 = 0
So 107774-55-0 is a valid CAS Registry Number.

107774-55-0Relevant articles and documents

Bismuth(III) halides: Remarkable doping agents for triflic acid in the catalytic sulfonylation of arenes

Repichet,Le Roux,Dubac

, p. 9233 - 9234 (1999)

The catalytic activity of triflic acid has been dramatically increased by the addition of a catalytic amount of bismuth(III) chloride. Thus, the catalytic sulfonylation of arenes using the new system BiCl3-triflic acid has been successfully carried out while both components of this catalytic system are poorly active or inactive alone, which suggests a synergy between BiCl3 and triflic acid. Other bismuth halide-triflic acid systems proved to be active.

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