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5556-73-0

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5556-73-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5556-73-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,5,5 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5556-73:
(6*5)+(5*5)+(4*5)+(3*6)+(2*7)+(1*3)=110
110 % 10 = 0
So 5556-73-0 is a valid CAS Registry Number.

5556-73-0Relevant articles and documents

Halogenation of 1,1-diarylethylenes by N-halosuccinimides

Zhang, Ge,Bai, Rui-Xue,Li, Chu-Han,Feng, Chen-Guo,Lin, Guo-Qiang

, p. 1658 - 1662 (2018/12/11)

An efficient method for the preparation of 2,2-diarylvinyl halides from the corresponding 1,1-diarylethylenes has been developed. N-Halosuccinimides (N-bromosuccinimide or N-chlorosuccinimide) were used as the halogenation reagents. The practicability of this method is highlighted by its simple operation, broad substrate scope and capability for large-scale reaction.

Reaction of Olefins with Malonic Acid Derivatives in the Presence of Manganese(III) Acetate

Fujimoto, Noriyuki,Nishino, Hiroshi,Kurosawa, Kazu

, p. 3161 - 3168 (2007/10/02)

The reaction of methylmalonic acid with mono- and disubstituted olefins in the presence of manganese(III) acetate yielded 2-carboxy-2-methyl-4-butanolides in moderate to good yields.The reactions of bromomalonic acid and chloromalonic acid with a variety

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