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57639-92-6

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57639-92-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57639-92-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,3 and 9 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57639-92:
(7*5)+(6*7)+(5*6)+(4*3)+(3*9)+(2*9)+(1*2)=166
166 % 10 = 6
So 57639-92-6 is a valid CAS Registry Number.

57639-92-6Downstream Products

57639-92-6Relevant articles and documents

Metal carbonyls. V. Kinetics of the reaction of monosubstituted manganese pentacarbonyl bromides with a variety of reagents

Angelici, Robert J.,Basolo, Fred

, p. 728 - 731 (1963)

The rates of reaction of Mn(CO)4LX with a variety of reagents L′ to form Mn(CO)3LL′X were found to be independent of the nature and concentration of L′, but to decrease with increasing atomic number of X and also to decrease with changes in L in the following order: P(C6H5)3 > As(C6H5)3 > P(C4H9)3 ~ P(C6H5)2Cl > P(OC6H5)3 ~ Sb(C6H5)3 > P(C6H5)Cl2 ~ P(OC4H9)3 > P(OCH2)3CCH3 (the group C4H9 is n-butyl). These results have been interpreted as indicating a dissociation mechanism in which the bulkiness of L determines the rate of CO dissociation. The absorption maxima of several Mn(CO)4LBr complexes in the near-ultraviolet region also are reported.

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