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99658-59-0

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99658-59-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99658-59-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,6,5 and 8 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 99658-59:
(7*9)+(6*9)+(5*6)+(4*5)+(3*8)+(2*5)+(1*9)=210
210 % 10 = 0
So 99658-59-0 is a valid CAS Registry Number.

99658-59-0Downstream Products

99658-59-0Relevant articles and documents

Hydroformylation of Nitrogen-Containing Cyclic Olefins via "in-situ" Rhodium-Phosphine Catalysts

Prokai-Tatrai, K.,Toeroes, S.,Heil, B.

, p. 231 - 236 (1986)

Hydroformylation of nitrogen-containing cyclic olefins (N-substituted nortropidines, N-methyl-1,2,3,6-tetrahydropyridine (THP)) with rhodium-PR3 catalysts prepared "in-situ" is reported.The nortropidines reacted rapidly when either trialkyl- or triaryl-type phosphines were used, and the regioselectivities were not significantly influenced by the nature of the phosphine.With the less basic THP the rates and selectivities were generally lower, and were influenced by the phosphine ligand and by the presence of added bases such as Et3N.

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