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136209-78-4

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136209-78-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 136209-78-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,2,0 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 136209-78:
(8*1)+(7*3)+(6*6)+(5*2)+(4*0)+(3*9)+(2*7)+(1*8)=124
124 % 10 = 4
So 136209-78-4 is a valid CAS Registry Number.

136209-78-4Relevant articles and documents

The heteroatomic chains and their derived cyclic products XI. A synthesis of 2-(dialkylhydrazone)thioacetophenones as agents in the preparation of 3,4-dihydro-2H-1,4-thiazines and 2H-1,4-thiazines.

Reliquet,Besbes,Reliquet,Meslin

, p. 543 - 546 (2007/10/02)

We describe the preparation of 2-(dialkylhydrazone)-thioacetophenones starting from their oxygenated analogs. These compounds are used as building blocks in heterocyclic chemistry and lead to 3,4-dihydro-2H-1,4-thiazines or 2H-1,4-thiazines.

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