109947-25-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109947-25-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,4 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 109947-25:
(8*1)+(7*0)+(6*9)+(5*9)+(4*4)+(3*7)+(2*2)+(1*5)=153
153 % 10 = 3
So 109947-25-3 is a valid CAS Registry Number.
InChI:InChI=1/C27H42O3/c1-19-9-10-22(28)18-21(19)13-17-27(30)16-7-15-26(5)23(11-12-24(26)27)20(2)8-6-14-25(3,4)29/h13,17-18,20,23-24,29-30H,1,6-12,14-16H2,2-5H3/b17-13+/t20-,23-,24-,26-,27-/m1/s1
109947-25-3Relevant academic research and scientific papers
A Convenient Preparation of 8R,25-Dihydroxy-9,10-seco-4,6,10(19)-cholestatrien-3-one / Short Communication
Reischl, Wolfgang
, p. 1185 - 1188 (2007/10/02)
The title compound was prepared in three steps from 25-hydroxyvitamin D3.The keystep in this sequence is the transformation of 3b to 4 by means of the LiBr/HMPT complex. - Keywords. 8R,25-Dihydroxy-9,10-seco-4,6,10(19)-cholestatrien-3-one; 9,10