1198-44-3 Usage
General Description
Ethyl 4-oxo-tetrahydro-3-thiopyrancarboxylate is a chemical compound that belongs to the class of organic compounds known as thiepanes. These are compounds containing a ring of seven atoms where one of the atoms is a sulfur atom. It is derived from a thiopyran. Thiopyrans are six-membered aromatic rings formed from a pyran by substitution of one oxygen atom with a sulfur atom. Its systematic name is ethyl 3,6-dihydro-4H-thiopyran-4-one-1-carboxylate. The information on the properties and potential applications of this compound is relatively scarce and it may require more research and study.
Check Digit Verification of cas no
The CAS Registry Mumber 1198-44-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,9 and 8 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1198-44:
(6*1)+(5*1)+(4*9)+(3*8)+(2*4)+(1*4)=83
83 % 10 = 3
So 1198-44-3 is a valid CAS Registry Number.
InChI:InChI=1/C8H12O3S/c1-2-11-8(10)6-5-12-4-3-7(6)9/h6H,2-5H2,1H3
1198-44-3Relevant articles and documents
Eight-membered thiocycloether via indium-mediated ring enlargement
Li, Chao-Jun,Chen, Dong-Li
, p. 735 - 736 (1999)
The ring expansion of a thiocycloether is studied. Ethyl-4-oxo- thiotetrahydropyran-3-carboxylate was expanded to an eight-membered thiocyclo ether by using indium mediated carbon-carbon bond formation in aqueous medium.