74342-17-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74342-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,4 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 74342-17:
(7*7)+(6*4)+(5*3)+(4*4)+(3*2)+(2*1)+(1*7)=119
119 % 10 = 9
So 74342-17-9 is a valid CAS Registry Number.
74342-17-9Relevant academic research and scientific papers
Reactions of Acetals of L-Sorbose with n-Butyllithium
Klemer, Almuth,Jung, Guenter,Meissner, Elke
, p. 1761 - 1767 (2007/10/02)
2,3:4,6-Di-O-isopropylidene-α-L-sorbose (1a) gives with n-butyllithium the known 6-deoxy-2,3-O-isopropylidene-β-D-threo-hex-5-enulofuranose (2), while the corresponding benzylidene compound 4 yields the glycal derivative 2,5-anhydro-4,6-O-benzylidene-3-de
