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457060-28-5

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457060-28-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 457060-28-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,5,7,0,6 and 0 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 457060-28:
(8*4)+(7*5)+(6*7)+(5*0)+(4*6)+(3*0)+(2*2)+(1*8)=145
145 % 10 = 5
So 457060-28-5 is a valid CAS Registry Number.

457060-28-5Downstream Products

457060-28-5Relevant articles and documents

Enantioselective total synthesis of (+)-testudinariol A using a new nickel-catalyzed allenyl aldehyde cyclization

Amarasinghe, Kande K. D.,Montgomery, John

, p. 9366 - 9367 (2002)

An enantioselective total synthesis of (+)-testudinariol A was completed. A new nickel-catalyzed allenyl aldehyde cyclization was developed in the approach. In addition, an asymmetric anti aldol reaction and a two-directional oxocarbenium ion/vinyl silane condensation were employed as key steps. Copyright

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