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56259-12-2

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56259-12-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56259-12-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,5 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56259-12:
(7*5)+(6*6)+(5*2)+(4*5)+(3*9)+(2*1)+(1*2)=132
132 % 10 = 2
So 56259-12-2 is a valid CAS Registry Number.

56259-12-2Downstream Products

56259-12-2Relevant articles and documents

Asymmetric Isopropylation of Steroidal 24-Aldehydes for the Synthesis of 24(R)-Hydroxycholesterol

Okamoto, Makoto,Tabe, Masayasu,Fujii, Takao,Tanaka, Toshio

, p. 767 - 778 (2007/10/02)

The chiral β-amino alcohols-catalyzed addition of diisopropylzinc to steroidal 24-aldehydes successfully provided 24(R)-hydroxycholesterols in good yields with high diastereoselectivities, which are synthetic intermediates of 1α-24(R)-dihydroxyvitamin D3

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