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14731-49-8

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14731-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 14731-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,7,3 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 14731-49:
(7*1)+(6*4)+(5*7)+(4*3)+(3*1)+(2*4)+(1*9)=98
98 % 10 = 8
So 14731-49-8 is a valid CAS Registry Number.

14731-49-8Relevant articles and documents

The route of alkylation of 5-substituted 1,3,4-thiadiazoline-2-thiones

Polvonov,Sabirov,Shakhidoyatov

, p. 228 - 232 (2003)

The reaction of 5-anilino(toluidino-, morpholino)-1,3,4-thiadiazoline-2-thiones at 80°C with allyl bromide and benzyl chloride in alcohol, acetonitrile or DMF in the presence of KOH and also with phenoxymethyloxirane in alcohol in the absence of base gives the corresponding novel allyl-, benzyl-, and 2-hydroxy-3-phenoxypropyl products substituted at the exocyclic S atom. Alkylation of the indicated thiones with benzyl chloride at 150-153°C in DMF in the presence of KOH occurs similarly. Under these conditions, allyl bromide forms alkylation products at the endocyclic N(3) atom as a result of an S→N thio-Claisen rearrangement of the initially formed product which is allyl substituted at the exocyclic S atom.

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