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119726-26-0

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119726-26-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119726-26-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,7,2 and 6 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 119726-26:
(8*1)+(7*1)+(6*9)+(5*7)+(4*2)+(3*6)+(2*2)+(1*6)=140
140 % 10 = 0
So 119726-26-0 is a valid CAS Registry Number.

119726-26-0Downstream Products

119726-26-0Relevant articles and documents

Synthesis and Reactions of Some Cyclobutadiene Complexes of Cobalt

Ahmad, Jasim U.,Kabir, Shariff E.,Ullah, Sayed S.

, p. 129 - 132 (2007/10/02)

Optimum conditions for the stepwise synthesis of the cyclobutadiene complexes C4H4Co2(CO)6(I) and C4H4Co(CO)2HgCo(CO)4(II) have been established.Their common iodine derivative, C4H4Co(CO)2I(III), on reaction with PPh3, CH3MgI and Hg2 gives the substitution product C4H4Co(CO)PPh3I(V), methyl derivative C4H4Co(CO)2CH3(X) and the heteronuclear complex C4H4Co2Hg(CO)5PPh3(VIII), respectively.The reaction of C4H4Co2(CO)6(I) with triphenylmethyl tetrafluoroborate gives the butadienyl salt (+)(IV).When (III) is reacted with PPh3 and AgPF6, a mixture ofphosphine substituted butadienyl salt PF6(VI), and the phosphine substituted iodo derivative (V) is obtained.Appropriate reaction schemes have been proposed on the basis of IR and PMR evidences.

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