128643-63-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128643-63-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,6,4 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 128643-63:
(8*1)+(7*2)+(6*8)+(5*6)+(4*4)+(3*3)+(2*6)+(1*3)=140
140 % 10 = 0
So 128643-63-0 is a valid CAS Registry Number.
128643-63-0Relevant 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
