4711-03-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4711-03-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,1 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 4711-03:
(6*4)+(5*7)+(4*1)+(3*1)+(2*0)+(1*3)=69
69 % 10 = 9
So 4711-03-9 is a valid CAS Registry Number.
4711-03-9Relevant articles and documents
Synthesis of 5-amino-5-deoxypentonolactams
Kefurt, Karel,Kefurtova, Zdenka,Markova, Vera,Slivova, Karla
, p. 1027 - 1036 (1996)
5-Azido-5-deoxy-1,2-O-isopropylidene-α-D-xylofuranose (4) and 5-azido-5-deoxy-1,2-O-isopropy-lidene-β-D-arabinofuranose (10) were prepared starting from D-xylose and D-arabinose, respectively. Using the oxidation-reduction way for the C-3 epimerization, 5
