200-25-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 200-25-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,0 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 200-25:
(5*2)+(4*0)+(3*0)+(2*2)+(1*5)=19
19 % 10 = 9
So 200-25-9 is a valid CAS Registry Number.
200-25-9Relevant articles and documents
REACTION OF DIPHENYL DISULPHIDE WITH 1,8-DEHYDRONAPHTHALENE
De Luca, Giorgio,Pizzabiocca, Adriano,Renzi, Gabriele
, p. 821 - 824 (1983)
The reaction of diphenyl disulphide with 1,8-dehydronaphthalene gives benzothioxantene(5), 1-naphthyl-phenyl-sulphide(6) and naphthothiet(7).Formation of these compounds is explained via the intermediacy of the radical species (8).