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91405-03-7

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91405-03-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91405-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,4,0 and 5 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 91405-03:
(7*9)+(6*1)+(5*4)+(4*0)+(3*5)+(2*0)+(1*3)=107
107 % 10 = 7
So 91405-03-7 is a valid CAS Registry Number.

91405-03-7Relevant articles and documents

Cob(I)alamin Differentiating Alkenes During Saturation

Schoenholzer, Peter,Suess, Daniel,Wan, Terence S.,Fischli, Albert

, p. 669 - 683 (2007/10/02)

The olefins 2, 7, 11, and 19 have been reduced using catalytic amounts of cob(I)alamin(1(I)).During a slow saturation, the catalyst is able to differentiate the two diastereotopic faces of the endocyclic double bonds in 11 (t1/2 40 d) and 19 (t1/2 80 d, cf.Scheme 4).The substrates 2 (t1/2 1 h, cf.Scheme 2) and 7 (t1/2 4 h, cf.Scheme 3) are reduced much faster.A rationalization of the data can be obtained formulating tertiary alkylcobalamins as intermediates.Of the oxime 6 ( cf.Scheme 2) and the p-bromobenzoate 23 (cf.Scheme 5) the structures have been determined by X-ray analysis.

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