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5630-57-9

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5630-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5630-57-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,3 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 5630-57:
(6*5)+(5*6)+(4*3)+(3*0)+(2*5)+(1*7)=89
89 % 10 = 9
So 5630-57-9 is a valid CAS Registry Number.

5630-57-9Downstream Products

5630-57-9Relevant articles and documents

Formation of perfluorinated polyphenylenes by multiple pentafluorophenylation using C6F5Si(CH3) 3

Nishida, Masakazu,Hayakawa, Yoshio,Ono, Taizo

experimental part, p. 1314 - 1321 (2011/02/22)

Pentafluorophenylation of perfluoroarenes with C6F 5Si(CH3)3 was investigated by using NMR and MALDI-TOF-MS techniques. Successive multiple pentafluorophenylation easily occurred not only on the para-position but also on the ortho-positions to provide perfluorinated p-phenylene and m-phenylene compounds. The perfluoroarenes having electron-withdrawing substituents provided oligo- to poly-(phenylene)s depending on the added amounts of C6F 5Si(CH3)3, while the perfluoroarenes having electron-donor substituents gave H(C6F4)nF polymers produced from C6F5H, which was the decomposed product of C6F5Si(CH3)3.

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