188349-20-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188349-20-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,3,4 and 9 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 188349-20:
(8*1)+(7*8)+(6*8)+(5*3)+(4*4)+(3*9)+(2*2)+(1*0)=174
174 % 10 = 4
So 188349-20-4 is a valid CAS Registry Number.
188349-20-4Relevant articles and documents
Synthesis of 6-hydroxy-L-daunosamine and L-daunosamine derivatives
Daley, Laurent,Roger, Pierre,Monneret, Claude
, p. 25 - 48 (2007/10/03)
Methyl 3-trifluoroacetamido-2,3-dideoxy-α-L-lyxo-hexopyranoside (19) has been synthesized from D-glucose derivatives following two pathways. The first one involving 1,2:5,6-di-O-isopropylidene-α-D-glucopyranose as starting material is mainly based upon az