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851051-04-2

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851051-04-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 851051-04-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,1,0,5 and 1 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 851051-04:
(8*8)+(7*5)+(6*1)+(5*0)+(4*5)+(3*1)+(2*0)+(1*4)=132
132 % 10 = 2
So 851051-04-2 is a valid CAS Registry Number.

851051-04-2Relevant articles and documents

Biomimetic synthesis of acid-sensitive (-)-caparrapi oxide and (+)-8-epicaparrapi oxide induced by artificial cyclases

Uyanik, Muhammet,Ishibashi, Hideaki,Ishihara, Kazuaki,Yamamoto, Hisashi

, p. 1601 - 1604 (2005)

(Chemical Equation Presented) Asymmetric total syntheses of acid-sensitive (-)-caparrapi oxide (1) and (+)-8-epicaparrapi oxide (2) from farnesol (9) were achieved using Sharptess-Katsuki epoxidation and Lewis acid-assisted chiral Bronsted acid (chiral LBA)-induced polyene cyclization as key steps. Furthermore, (-)-1 could be directly synthesized from (S)-nerolidol (3) and (R)-LBA with 88% ds by reagent control which overcame substrate control, while (-)-2 was obtained from (R)-3 and (R)-LBA with >99% ds by the double-asymmetric induction.

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