191109-28-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 191109-28-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,1,0 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191109-28:
(8*1)+(7*9)+(6*1)+(5*1)+(4*0)+(3*9)+(2*2)+(1*8)=121
121 % 10 = 1
So 191109-28-1 is a valid CAS Registry Number.
191109-28-1Relevant academic research and scientific papers
Linclau,De Clercq,Vandewalle,Bouillon,Verstuyf
, p. 1465 - 1468 (1997)
Vitamin D analogues, characterized by a six-membered D-ring and by the absence of a C-ring are described.
