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239100-37-9

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239100-37-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 239100-37-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,3,9,1,0 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 239100-37:
(8*2)+(7*3)+(6*9)+(5*1)+(4*0)+(3*0)+(2*3)+(1*7)=109
109 % 10 = 9
So 239100-37-9 is a valid CAS Registry Number.

239100-37-9Upstream product

239100-37-9Downstream Products

239100-37-9Relevant articles and documents

Synthesis and biological characterization of 1α,24,25-trihydroxy-2β-(3-hydroxypropoxy)vitamin D3 (24-hydroxylated ED-71)

Hatakeyama, Susumi,Kawase, Akira,Uchiyama, Yasushi,Maeyama, Junji,Iwabuchi, Yoshiharu,Kubodera, Noboru

, p. 267 - 276 (2007/10/03)

24-Hydroxylated derivatives were synthesized in 24(R) and 24(S) forms by the convergent method as analogs related to 1α,25-dihydroxy-2β-(3-hydroxypropoxy)vitamin D3. In the convergent synthesis, the A-ring fragment, synthesized from diethyl D-tartarate, and the C/D-ring fragments in 24(R) and 24(S) forms (vitamin D numbering), obtained from vitamin D2 via the Inhoffen-Lythgoe diol, were coupled in moderate yields to give 1α,24(R),25-trihydroxy-2β-(3-hydroxypropoxy)vitamin D3 and 1α,24(S),25-trihydroxy-2β-(3-hydroxypropoxy)vitamin D3. In preliminary biological evaluations, 24-hydroxylation of 1α,25-dihydroxy-2β-(3-hydroxypropoxy)vitamin D3 caused weakened affinity to vitamin D binding protein in vitro and less calcemic activity in vivo compared to the parent compound. While the affinity to vitamin D receptor in 24(R) epimer was sustained, the affinity in 24(S) epimer was less than that of the parent compound. Copyright

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