162889-26-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 162889-26-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,2,8,8 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 162889-26:
(8*1)+(7*6)+(6*2)+(5*8)+(4*8)+(3*9)+(2*2)+(1*6)=171
171 % 10 = 1
So 162889-26-1 is a valid CAS Registry Number.
162889-26-1Relevant articles and documents
A General Synthetic Route to A-Ring Hydroxylated Vitamin D Analogs from Pentoses
Moriarty, Robert M.,Kim, Joonggon,Brumer, Harry
, p. 51 - 54 (2007/10/02)
The enyne needed for coupling to a CD-ring fragment, namely, 3S,5R-oct-1-en-7-yne-3,5-diol, in the Trost-Dumas carbopalladation route to 1α,25-dihydroxyvitamin D3 was synthesized from D-xylose in 13 steps and 21percent yield.
