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55091-63-9

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55091-63-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 55091-63-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,5,0,9 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 55091-63:
(7*5)+(6*5)+(5*0)+(4*9)+(3*1)+(2*6)+(1*3)=119
119 % 10 = 9
So 55091-63-9 is a valid CAS Registry Number.

55091-63-9Relevant articles and documents

A catalytic and enantioselective cyclopropylation of aldehydes using dicyclopropylzinc

Shibata, Takanori,Tabira, Hayami,Soai, Kenso

, p. 177 - 178 (1998)

Enantioselective cyclopropylation of various aldehydes proceeds using dicyclopropylzinc in the presence of a catalytic amount of chiral amino alcohol or thiophosphoramidate with Ti(OPr1)4 to provide enantiomerically enriched cyclopropyl alkanols (up to 96.6% ee).

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