4-thio-1,3<2H>benzoxazin-2-one is a chemical compound with the molecular formula C7H5NO2S. It is a derivative of benzoxazinone, which is a heterocyclic compound containing oxygen, nitrogen, and sulfur atoms in its structure. 4-thio-1,3<2H>benzoxazin-2-one is characterized by a benzene ring fused to an oxazinone ring, with a sulfur atom replacing one of the oxygen atoms in the oxazinone ring. It is an important intermediate in the synthesis of various agrochemicals and pharmaceuticals, particularly those with biological activity. Due to its unique structure, 4-thio-1,3<2H>benzoxazin-2-one has potential applications in the development of new drugs and pesticides, as well as in the study of chemical reactions involving heterocyclic compounds.
The CAS Registry Mumber 7134-80-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,1,3 and 4 respectively; the second part has 2 digits, 8 and 0 respectively. Calculate Digit Verification of CAS Registry Number 7134-80: (6*7)+(5*1)+(4*3)+(3*4)+(2*8)+(1*0)=87 87 % 10 = 7 So 7134-80-7 is a valid CAS Registry Number.