193544-56-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 193544-56-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,5,4 and 4 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 193544-56:
(8*1)+(7*9)+(6*3)+(5*5)+(4*4)+(3*4)+(2*5)+(1*6)=158
158 % 10 = 8
So 193544-56-8 is a valid CAS Registry Number.
193544-56-8Relevant articles and documents
The first stereospecific approach to both enantiomers of mellein
Dimitriadis, Christian,Gill, Melvyn,Harte, Michael F.
, p. 2153 - 2158 (1997)
(R)-(-)-Mellein 1 and its (S)-(+)-antipode 2 are prepared in six steps and ca. 30% overall yield from (R)- and (S)-propylene oxide, 3 and ent-3, respectively.
