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1244041-17-5

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1244041-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1244041-17-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,4,0,4 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1244041-17:
(9*1)+(8*2)+(7*4)+(6*4)+(5*0)+(4*4)+(3*1)+(2*1)+(1*7)=105
105 % 10 = 5
So 1244041-17-5 is a valid CAS Registry Number.

1244041-17-5Downstream Products

1244041-17-5Relevant articles and documents

Cobalt(III) complexes of various salen-type ligand bearing four quaternary ammonium salts and their reactivity for CO2/epoxide copolymerization

Kim, Bo Eun,Varghese, Jobi Kodiyan,Han, Yonggyu,Lee, Bun Yeoul

experimental part, p. 829 - 834 (2010/11/05)

Ligand variation was carried out on a cobalt(III) complex of Salen-type ligand comprised of 1,2-cyclohexenediamine and salicylaldehyde bearing a methyl substituent on 3-position and -[CMe(CH2CH2CH2N +Bu3)2] on 5-position, which is a highly active catalyst for CO2/propylene oxide copolymerization. Replacement of the methyl substituent with bulky isopropyl group resulted in alteration of the binding mode, consequently lowering turnover frequency significantly. Replacement with an ethyl group preserved binding mode and activity. Replacement of the tributylammonium unit with trihexylammonium or trioctylammonium, or replacement of 1,2-cyclohexenediamino unit with -NC(Me)2CH 2N-decreased activity, even though the binding mode was unaltered.

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