138383-64-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138383-64-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,3,8 and 3 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138383-64:
(8*1)+(7*3)+(6*8)+(5*3)+(4*8)+(3*3)+(2*6)+(1*4)=149
149 % 10 = 9
So 138383-64-9 is a valid CAS Registry Number.
138383-64-9Relevant articles and documents
Stereocontrolled Total Synthesis of Galactostasin from Serine
Dondoni, Alessandro,Merino, Pedro,Perrone, Daniela
, p. 1576 - 1578 (2007/10/02)
An efficient stereoselective total synthesis of (-)-galactostasin (-)-1 from N-tert-butoxycarbonyl-2,3-isopropylidene L-serine methyl ester (21percent overall yield) is described via thiazole intermediates serving as protected aldehydes; the parallel synt