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Class Information
Number: 548/136
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Heterocyclic carbon compounds containing a hetero ring having chalcogen (i.e., oxygen, sulfur, selenium, or tellurium) or nitrogen as the only ring hetero atoms (class 540, subclass 1) > Hetero ring is five-membered having two or more ring hetero atoms of which at least one is nitrogen (e.g., selenazoles, etc.) > The five-membered hetero ring consists of chalcogen, plural nitrogens, and carbon > 1,3,4-thiadiazoles (including hydrogenated)
Description: Compounds in which the five-membered hetero ring has sulfur in the 1-position, nitrogens in the 3- and 4-positions, and carbons in the remaining two positions.










Sub-classes under this class:

Class Number Class Name Patents
548/142 Chalcogen bonded directly to the 2- and 5- positions of the thiadiazole ring 167
548/137 Diazole ring attached directly to the thiadiazole ring by nonionic bonding 65
548/138 Nitrogen attached directly to the thiadiazole ring by nonionic bonding 197


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
4212875 Imidazolyl alkyl bisamidines Jul. 15, 1980
4196125 Substituted 1-sulfonylbenzimidazoles Apr. 1, 1980
4191769 Isothiourea compounds and pharmacological use Mar. 4, 1980
4162254 Benzoxazole ultraviolet stabilizers Jul. 24, 1979
4160030 N-oxy and N-amino guanidines Jul. 3, 1979
4159985 Heterocyclic phenyl ester ultraviolet stabilizers Jul. 3, 1979
4154733 Ketoxime carbamates May. 15, 1979
4154732 Ketoxime carbamates May. 15, 1979
4154844 Pharmacologically active guanidine compounds in compositions and methods of use May. 15, 1979
4153704 Ethylene derivatives May. 8, 1979
4152329 2-Acylaminothiazol-4-ylacetamides as post-emergent selective herbicides May. 1, 1979
4144241 5-Sulfomethyl-1,3,4-thiadiazole-2-thiol Mar. 13, 1979
4144240 Substituted mercaptothiadiazole compounds Mar. 13, 1979
4138243 Novel heterocyclic compounds Feb. 6, 1979
4137237 Pharmacologically active guanidine compounds Jan. 30, 1979
4137235 Oxazole esters and their use as stabilizers in organic compositions Jan. 30, 1979
4120861 2-(5-Phenyl-1,3,4-thiadiazol-2-yl)benzoic acid Oct. 17, 1978
4107314 Antifungal thio-alkyl-imidazole derivatives Aug. 15, 1978
4097669 2-Substituted-5-trifluoromethyl-1,3,4-thiadiazoles Jun. 27, 1978
4095939 Optically brightened polyesters with 2,5-bis-(p-carboalkylstyryl)-oxadiazole Jun. 20, 1978
4093621 Process for preparing heterocyclicalkylthioalkyl-N-cyanoguanidines and thioureas Jun. 6, 1978
4090026 Certain nitrogen heterocyclic isothiocyanate esters May. 16, 1978
4089874 1,3,4-Thiadiazol-2,5-diyl-bis-benzoic acid esters May. 16, 1978
4083986 2-Trichloromethyl-1,3,4-thiadiazole Apr. 11, 1978
4077965 Aminoalkyl- or hydroxyalkyl-substituted thiadiazole derivatives Mar. 7, 1978
4069227 Bis-heterocyclic benzoate ultraviolet stabilizers and their use in organic compositions Jan. 17, 1978
4066775 Certain fungitoxic 2-halo-5-trichloromethyl-1,3,4-thiadiazoles Jan. 3, 1978
4061645 2-Trichloromethyl-5-methylsulfinyl-1,3,4-thiadiazole Dec. 6, 1977
4055568 Dyes of the coumarin series Oct. 25, 1977
4054664 Triazole insecticides Oct. 18, 1977
4053473 Pharmacologically active thiourea and urea compounds Oct. 11, 1977
4052371 Azo pigment or dye having a naphthyl-quinazalone coupling component Oct. 4, 1977
4049622 Self-extinguishing thermoplastic molding compositions Sep. 20, 1977
4046907 Imidazole alkylaminoethylene compounds Sep. 6, 1977
4040922 Photopolymerizable polymeric compositions containing halogen containing heterocyclic compound Aug. 9, 1977
4036971 Amidino compounds Jul. 19, 1977
4028379 Process for preparing 2-amino-2-alkylthio-1-nitroethylene compounds Jun. 7, 1977
4022901 3-Pyridinyl-5-isothiocyanophenyl oxadiazoles May. 10, 1977
4020080 Oxadiazolylphenyl aromatic ester compounds and their use as ultraviolet stabilizer in organic compositions Apr. 26, 1977
4013678 Process for preparing heterocyclicalkylthioalkyl-N-cyanoguanidines Mar. 22, 1977
4002619 Coumarine dyestuffs of the dispersion series Jan. 11, 1977
4000147 Anhydro-2-mercapto-1,3,4-thiadiazolium hydroxides Dec. 28, 1976
3997551 3-Salicylamido-s-triazoles Dec. 14, 1976
3976680 Production of an ester of one enantiomer of an .alpha.-amino acid in the form of a salt with an optically active acid Aug. 24, 1976
3971803 3-Hydroxybenzyl-oxadiazolone and -thiadiazolone derivatives Jul. 27, 1976
3969526 Anthelmintic 5-heterocycliothio and oxy-2-carbalkoxyaminobenzimidazles Jul. 13, 1976
3963738 Bis-oxadiazolyl phenyl aromatic diester compounds and their use as ultraviolet stabilizers in organic compositions Jun. 15, 1976
3959301 Algicidol 2-chloro-5-tolyl-1,3,4-thiadiazoles May. 25, 1976
3953460 Ethylene derivatives Apr. 27, 1976
3950333 Pharmacologically active guanidine compounds Apr. 13, 1976

1 2 3 4 5 6 7 8 9 10 11 12










 
 
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