102817-87-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 102817-87-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,2,8,1 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 102817-87:
(8*1)+(7*0)+(6*2)+(5*8)+(4*1)+(3*7)+(2*8)+(1*7)=108
108 % 10 = 8
So 102817-87-8 is a valid CAS Registry Number.
InChI:InChI=1/C9H9ClN2OS/c10-6-1-3-7(4-2-6)12-9(13)5-8(11)14/h1-4H,5H2,(H2,11,14)(H,12,13)
102817-87-8Relevant articles and documents
Heterocyclen-Synthesen mit Monothiomalonsaeure-Amiden: Synthese von 3-Oxo-2,3-dihydroisothiazolopyridinen und 3-Oxo-2,3-dihydroisothiazolopyrimidinen
Schaper, Wolfgang
, p. 861 - 867 (2007/10/02)
The monothiomalonic acid amides 5, prepared from cyanoacetamides 4 and hydrogen sulphide, react with diketones 6 or aldehyde derivatives 7 to give the 2-thioxo-1,2-dihydropyridine-3-carboxamides 8 which can be cyclised to the 3-oxo-2,3-dihydroisothiazolo