943241-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 943241-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,3,2,4 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 943241-16:
(8*9)+(7*4)+(6*3)+(5*2)+(4*4)+(3*1)+(2*1)+(1*6)=155
155 % 10 = 5
So 943241-16-5 is a valid CAS Registry Number.
943241-16-5Relevant articles and documents
1,5-Anhydro-d-fructose from d-fructose
Dekany, Gyula,Lundt, Inge,Niedermair, Fabian,Bichler, Sabine,Spreitz, Josef,(Fitz) Sprenger, Friedrich K.,Stuetz, Arnold E.
, p. 1249 - 1253 (2007)
1,5-Anhydro-d-fructose was efficiently prepared from d-fructose via regiospecific 1,5-anhydro ring formation of 2,3-O-isopropylidene-1-O-methyl(tolyl)sulfonyl-d-fructopyranose and subsequent deprotection.
