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1210451-25-4

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1210451-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1210451-25-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,0,4,5 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1210451-25:
(9*1)+(8*2)+(7*1)+(6*0)+(5*4)+(4*5)+(3*1)+(2*2)+(1*5)=84
84 % 10 = 4
So 1210451-25-4 is a valid CAS Registry Number.

1210451-25-4Relevant articles and documents

Highly stereoselective formal synthesis of rosuvastatin and pitavastatin through Julia-Kocienski olefination using the lactonized statin side-chain precursor

Fabris, Jan,?asar, Zdenko,Smilovi?, Ivana Gazi?,?rnugelj, Martin

, p. 2333 - 2346 (2014/12/09)

An expedient and simple synthetic approach to pitava statin and rosuvastatin final intermediates is described. The presented approach consists of completely stereoselective Julia-Kocienski olefination step (E/Z up to 300:1) between lactonized statin side-chain precursor and sulfone derivative of the corresponding pyrimidine and quinoline heterocyclic cores. The desired O-TBS protected statin lactones were isolated in 66-71% yield and high >97% purity (HPLC). Georg Thieme Verlag Stuttgart. New York.

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