网页   产品   词典   专利   供求   新闻  
     

您的位置:首页 >词典 >CAS登录号列表>252555-43-4至254732-97-3

化工词典

化工词典-CAS登录号252555-43-4至254732-97-3
cas号 中文名称 英文名称
Benzene,1-(ethylthio)-2-fluoro-
Benzene,2-fluoro-1-methyl-3-(methylthio)-
1-(4-bromo-2-chlorophenyl)ethanone
Hydrazine,[4-(methylsulfonyl)-3-(trifluoromethyl)phenyl]-, hydrochloride (1:1)
Hydrazine,[4-(methylsulfonyl)-3-(trifluoromethyl)phenyl]-
Acetamide,N-[4-(aminosulfonyl)-2-methylphenyl]-
1-(4-bromophenyl)-2-(3-fluorophenyl)ethanone
2-Cyclopentene-1,1,3-tricarbonitrile,2-amino-
L-Norleucine,N-[(phenylmethoxy)carbonyl]-L-norleucyl-
3-Pyrrolidinamine,4-methoxy-N-methyl-, (3S,4S)-
(3S,4S)-N-Boc-3-苄氨基-4-羟基吡咯烷
(3S,4S)-N-Boc-3-(benzylamino)-4-hydroxypyrrolidine
1-(5-硝基吡啶-2-基)哌啶-4-胺
1-(5-Nitropyridin-2-yl)-4-piperidinamine
1-(5-甲基吡啶-2-基)哌啶-4-胺
1-(5-Methylpyridin-2-yl)-4-piperidinamine
Phenol,3-bromo-4-(phenylmethoxy)-
Benzoic acid,2-[2-[8-[[6-[(2-carboxyphenyl)amino]-4,5-dihydro-4-oxo-1,3,5-triazin-2-yl]amino]-1-hydroxy-3,6-disulfo-2-naphthalenyl]diazenyl]-,lithium salt (1:4)
Ethanone,1-(5-amino-2-methoxyphenyl)-2,2,2-trifluoro-
Ethanone,1-(5-amino-2-methylphenyl)-2,2,2-trifluoro-
Benzeneacetonitrile, a-amino-2-fluoro-
L-Phenylalanine,L-leucyl-L-valyl-L-glutaminyl-L-prolyl-L-arginylglycyl-L-seryl-L-arginyl-L-asparaginylglycyl-L-prolylglycyl-L-prolyl-L-tryptophyl-L-glutaminylglycylglycyl-L-arginyl-L-arginyl-L-lysyl-L-phenylalanyl-L-arginyl-L-arginyl-L-glutaminyl-L-arginy
2-Pyrrolidinone,4-mercapto-1-methyl-, (4R)-
2-Pyrrolidinone,4-mercapto-1-methyl-, (4S)-
Piperidine,1-[bis(4-fluorophenyl)methyl]-
2-Oxiranecarboxylicacid, 2-methyl-, 1,1-dimethylethyl ester, (2S)-
2-Oxazolecarboxaldehyde,5-(1,1-dimethylethyl)-
4-(N-Benzylaminocarbonyl)phenylboronic acid
4-(Butylaminocarbonyl)phenylboronic acid
Phenol,4-(aminomethyl)-2,6-difluoro-
Phenol,3-(aminomethyl)-2,6-difluoro-
Butanoic acid,2-[(cyclopentylcarbonyl)amino]-
Alanine,N-(2-ethyl-1-oxobutyl)-
Alanine,N-(2-ethyl-1-oxooctyl)-
Alanine,N-(1-oxo-2-propylpentyl)-
Alanine,N-(cycloheptylcarbonyl)-
Benzothiazole,2-chloro-4,5-dimethyl-
2-氯-4,6-二氟苯并噻唑
2-Chloro-4,6-difluorobenzothiazole
N-BOC-Amino-piperidinyl-1,1-carboxylic acid
4-Boc-氨基哌啶-1,4-二羧酸-1-苄酯
4-(Boc-amino)-1-Cbz-piperidine-4-carboxylic acid
3-Benzofurancarboxaldehyde,2,4,5,6,7,7a-hexahydro-
4-(piperazin-1-yl)-7H-pyrrolo[2,3-d]pyrimidine
2-(3-piperidyl)propan-2-ol
糠基丙基二硫醚
Furfuryl propyl disulfide
S-(2,5-dimethyltetrahydrofuran-3-yl) ethanethioate
3-氯甲基-1,2,4-三唑啉-5-酮
3-Chloromethyl-1,2,4-triazolin-5-one
2,3,4-Furantriol,5-(5-ethyl-3-isoxazolyl)tetrahydro-, (3R,4S,5R)-
benzyl (3R,4R)-3-amino-4-(hydroxymethyl)pyrrolidine-1-carboxylate
Benzaldehyde,5-ethynyl-2-hydroxy-
3H,5H-Pyrrolo[1,2-c]oxazol-5-one,tetrahydro-3-(1-methylethyl)-, (3R,7aS)-
1-[4-(4-ethylcyclohexyl)cyclohexyl]-3,5-difluoro-benzene
Cycloheptanamine,N-(2-methoxyethyl)-
Cyclohexanamine,N-methyl-4-(1-methylethyl)-
Bicyclo[3.1.0]hexan-3-amine,N,4-dimethyl-1-(1-methylethyl)-
8-溴-5-硝基异喹啉
8-Bromo-5-nitroisoquinoline
2-Pyridinecarboximidicacid, 2-[(methylamino)carbonyl]hydrazide
5-(5-Isopropoxypyridin-3-yl)-N-methyl-4(E)-penten-2(S)-amine
4-Penten-2-amine,5-(5-ethoxy-3-pyridinyl)-N-methyl-, (4E)-
Benzenesulfonylchloride, 3-phenoxy-
tert-butyl 2-oxo-1,2-dihydro-1'H-spiro[indole-3,4'-piperidine]-1'-carboxylate
2,5-Cyclohexadiene-1-carboxylicacid, 1,2-dimethyl-, (1S)-
Acetamide, N-[4-(cyanoacetyl)phenyl]-
草酸钇
yttrium oxalate hydrate
3-O-[tert-butyl(dimethyl)silyl]-5,6-dideoxy-1,2-O-(1-methylethylidene)-alpha-D-xylo-hex-5-enofuranose
3-(hydroxymethyl)piperidin-4-ol
methyl 5-tert-butyl-3-(chloromethyl)thiophene-2-carboxylate
3-[3-(chloromethyl)-1,2,4-oxadiazol-5-yl]-2-(methylsulfanyl)pyridine
(Z)-3-[2,4-Dimethyl-5-(2-oxo-2,3-dihydro-1H-indol-3-ylidenemethyl)-1H-pyrrol-3-yl]propionic acid
6-[2-[4-(2,4-Dichlorophenyl)-5-(4-methyl-1H-imidazol-2-yl)pyrimidin-2-ylamino]ethylamino]pyridine-3-carbonitrile
(3R,4R)-1-tert-butoxycarbonyl-4-ethoxycarbonyl-pyrrolidine-3-carboxylic acid
ethyl 3-(3-aminophenyl)pyridine-4-carboxylate
3-(3-Nitrophenyl)-4-pyridinecarboxylic acid ethyl ester
2-Cyclohexene-1-methanamine,1,5,5-trimethyl-
3-Cyclohexene-1-methanamine,1,5,5-trimethyl-
3-(4-methyl-4H-1,2,4-triazol-3-yl)aniline
3-(1,3-oxazol-5-yl)benzoic acid
N-(2-Bromophenyl)- 4-pyridinecarboxamide
3-氨基-2-乙氧羰基吡咯盐酸盐
3-Amino-2-ethoxycarbonylpyrrole hydrochloride
1H-Pyrrole-2-carboxylicacid, 3-amino-, ethyl ester
2-(4-氟苄基)丙二酸二甲酯
Dimethyl (4-fluorobenzyl)malonate
2-N-叔丁氧羰基-6-N-苄氧羰基-D-赖氨醇
2-N-Boc-6-N-Cbz-D-Lysinol
4,4,5,5,5-Pentafluoropentyl methanesulfonate
5,5,6,6,6-Pentafluorohexanecarbonitrile
1H-Imidazole,5-[(1S,2S)-2-ethynylcyclopropyl]-
1H-Imidazole,5-[(1R,2R)-2-ethynylcyclopropyl]-
Carbamic acid,[(1R)-1-(hydroxymethyl)-1-methylpropyl]-, 1,1-dimethylethyl ester (9CI)
Carbamic acid,[(1S)-1-(hydroxymethyl)-1-methylpropyl]-, 1,1-dimethylethyl ester (9CI)
1H-Imidazole-1-butanoicacid, g-(2,4-dichlorobenzoyl)-, ethylester
Ethanol,2-[(6-amino-5-nitro-2-pyridinyl)amino]-
Ethanone,1-(2,4-dichlorophenyl)-2-(4-methyl-1H-imidazol-1-yl)-
Ethanone,1-(2,4-dichlorophenyl)-2-(2,4-dimethyl-1H-imidazol-1-yl)-
Ethanone,1-(2,4-dichlorophenyl)-2-(4-phenyl-1H-imidazol-1-yl)-
2-Propen-1-one,1-(2,4-dichlorophenyl)-3-(dimethylamino)-2-(4-methyl-1H-imidazol-1-yl)-
2-Propen-1-one,1-(2,4-dichlorophenyl)-3-(dimethylamino)-2-(2,4-dimethyl-1H-imidazol-1-yl)-
2-Propen-1-one,2-(1H-benzimidazol-1-yl)-1-(2,4-dichlorophenyl)-3-(dimethylamino)-
2-Propen-1-one,1-(2,4-dichlorophenyl)-3-(dimethylamino)-2-(2-methyl-1H-imidazol-1-yl)-
2-Propen-1-one,1-(2,4-dichlorophenyl)-3-(dimethylamino)-2-(4-phenyl-1H-imidazol-1-yl)-
Benzenepropanoic acid, b-oxo-4-(trifluoromethoxy)-, ethylester
Ethanone,1-(2,4-dichlorophenyl)-2-(4-pyridinyl)-
4-isocyanato-1,3,5-trimethyl-1H-pyrazole
1,8-Naphthyridine-3-carboxylicacid, 2-(trifluoromethyl)-, ethyl ester
3H-[1,2,4]Oxadiazolo[4,3-d][1,4]oxazepine(9CI)
1H-[1,2,4]Oxadiazino[4,3-a]azepine(9CI)
3-Thiophenecarboxamide,2-amino-N-methyl-
1H-Pyrrolo[3',4':2,3]pyrrolo[1,2-c]imidazole(9CI)
2,4-二氢-4-[4-[4-(4-甲氧基苯基)-1-哌嗪基]苯基]-2-(1-甲基丙基)-3H-1,2,4-三唑-3-酮
2,4-Dihydro-4-[4-[4-(4-methoxyphenyl)-1-piperazinyl]phenyl]-2-(1-methylpropyl)-3H-1,2,4-triazol-3-one
Pyridine,3-(dimethylsilyl)-
Pregnane-3,20-dione-1,2,4,5-d4,11,17,21-trihydroxy-, (4a,5a,11b)- (9CI)
Ytterbium(III) triflate hydrate
tert-butyl 4-(1H-indol-4-yl)piperazine-1-carboxylate
2-Cyclohexen-1-one,6-(hydroxymethyl)-3-methoxy-6-methyl-
Pyridine,3-methoxy-2-[(trimethylsilyl)oxy]-
Pyridine,2-chloro-6-[(trimethylsilyl)oxy]-
Imidogen,1,3,5-triazine-2,4,6-triyltris-
Benzothiazole,2-methyl-5-(methylsulfinyl)-
3-Pyridinecarboxaldehyde,5-ethynyl-
3-Pyridinepropanoicacid, b-amino-6-methyl-
(R)-1-Boc-2-哌嗪甲酸甲酯
(R)-N-Boc-piperazine-2-carboxylic acid methyl ester
2-氨基-3-羧基苯甲酸甲酯
2-amino-3-(methoxycarbonyl)benzoic acid
Propanenitrile,3-[[(4-chlorophenyl)methyl]thio]-
2-propyl-4-(4-pyridylazo)phenol
9H-Pyrido[3,4-b]indole,9-ethoxy-
(3R,4R)-1-benzyl-4-(hydroxymethyl)pyrrolidin-3-ol
3,4-Pyrrolidinediol,2-(3,4-diaminophenyl)-5-(hydroxymethyl)-, (2S,3S,4R,5R)-
Benzonitrile,4-[(2S,3S,4R,5R)-3,4-dihydroxy-5-(hydroxymethyl)-2-pyrrolidinyl]-
3,4-Pyrrolidinediol,2-[4-(aminomethyl)phenyl]-5-(hydroxymethyl)-, (2S,3S,4R,5R)-
1H-Indole-2-carboxylicacid, 2,3-dihydro-2-methyl-, (2S)-
Pyrimidine,4-ethoxy-2-methoxy-6-methyl-
6-Hepten-2-one,3-methyl-, (3S)-
[(1,1'-Binaphthalene-2,2'-diyl-kappaC~2~)bis(diphenylphosphine)]palladium(2+) dichloride
Oxirane,2-(3,5-difluorophenyl)-
Benzenemethanol,2-fluoro-4-hydroxy-a-methyl-
2-Propyn-1-ol,3-(4-aminophenyl)-
1-Piperazinecarboxamide,N-(1,1-dimethylethyl)-
1-Butanone,3,3-dimethyl-1-(1-piperazinyl)-
Quaternium 61 (9CI)
5-oxo-1-[4-(trifluoromethyl)benzyl]pyrrolidine-3-carboxylic acid
Pyridine,2-[1-(2-ethylcyclopentylidene)ethyl]-
Pyridine,2-[1-(2-ethyl-1-cyclopenten-1-yl)ethyl]-
1-amino-1,3,4,5-tetrahydro-2H-3-benzazepin-2-one
8-Indolizinecarboxylicacid, 1,2,3,5-tetrahydro-5-oxo-6-[[(trifluoromethyl)sulfonyl]oxy]-, methylester
5(1H)-Indolizinone,2,3-dihydro-6-hydroxy-
Carbamic acid,N-[(3-methyl-1,2,4-oxadiazol-5-yl)methyl]-, 1,1-dimethylethyl ester
ethyl 5-{[(tert-butoxycarbonyl)amino]methyl}isoxazole-3-carboxylate
3-Isoxazolecarboxylicacid, 5-(aminomethyl)-, ethyl ester
2,4(1H,3H)-Pyrimidinedione,6-[(2-hydroxypropyl)amino]-1,3-dimethyl-
Benzene,1-ethoxy-4-[(trans,trans)-4'-ethyl[1,1'-bicyclohexyl]-4-yl]-2,3-difluoro-
2-phenyl-8-(trifluoromethyl)quinolin-4-ol
N,N,N’’,N’’-TETRAKIS[4-BIS(3-CYANOPROPYL)AMINOPHENYL]-P-PHENYLENEDIAMINIUM HEXAFLUOROPHOSPHATE
N,N,N’’,N’’-TETRAKIS[4-BIS(3-CYANOPROPYL)AMINOPHENYL]-P-PHENYLENEDIAMINIUM DIHEXAFLUOROPHOSPHATE
3-[3-(溴甲基)苯基]-5-甲基-1,2,4-恶二唑
3-(3-(bromomethyl)phenyl)-5-methyl-1,2,4-oxadiazole
Boronic acid,B-(2-methoxyphenyl)-, dimethyl ester
3,5-Cyclohexadiene-1,2-dione,4-methyl-5-(phenylamino)-
3-Pyridinamine,N-[(2-methoxyphenyl)methyl]-4-phenoxy-
1-Naphthalenecarboxaldehyde,5-methoxy-7-(methoxymethyl)-4-(phenylmethoxy)-
Benzamide,2-(hydroxymethyl)-4-methoxy-N,N-bis(1-methylethyl)-
Thiourea,N-cyclopropyl-N-(cyclopropylmethyl)-
5-Pyrimidinecarboxylicacid, 2-(4-morpholinyl)-
2-pyrrolidin-1-ylpyrimidine-5-carboxylic acid
6-(1H-吡唑-1-基)烟酸
6-(1H-Pyrazol-1-yl)nicotinic acid
3-Pyridinecarboxylicacid, 6-[4-(trifluoromethyl)phenyl]-
Thiourea,N-cyclopentyl-N-(2-methylpropyl)-
(1S)-1-氨基-1,3,4,5-四氢-3-甲基-2H-3-苯并氮杂卓-2-酮
(1S)-1-Amino-1,3,4,5-tetrahydro-3-methyl-2H-3-benzazepin-2-one
2(1H)-Isoquinolineaceticacid, 3,4-dihydro-a-methyl-3-oxo-
Thieno[2,3-b]pyridine-3-carbonitrile,2-amino-4,6-dimethyl-
4H-Pyrrolo[2,3-d]pyrimidin-4-one,6-ethyl-3,7-dihydro-2-(methylthio)-
Methanone,1-aziridinylbicyclo[2.2.1]hepta-2,5-dien-2-yl-
2-Amino-6-(hydroxymethyl)pyrimidin-4(1H)-one
4,4,5,5-tetramethyl-2-(3-methylphenyl)-1,3,2-dioxaborolane
2-羟甲基-3-甲基-4-(2,2,2-三氟乙氧基)吡啶盐酸盐
2-Hydroxymethyl-3-Methyl-4-(2,2,2-Trifluoroethoxy)Pyridine HCL
Acetic acid,2-[2-[ethyl[4-[2-(4-nitrophenyl)diazenyl]phenyl]amino]ethoxy]-, 4-nitrophenylester
7-bromo-5-fluoro-1-benzofuran
7-bromo-4-fluoro-1-benzofuran
Ethanone,1-(7,8-dihydroxy-2-methyl-3-quinolinyl)-
Cyclopropanecarbonylchloride, 1-(acetyloxy)-
4(1H)-Pyridinone,2-fluoro-
4(1H)-Pyridinone,2,6-difluoro-
4(1H)-Pyridinone,2,6-dichloro-
4(1H)-Pyridinone,3,5-difluoro-
4(1H)-Pyridinone,2,3,5,6-tetrafluoro-
4-Pyridinol,3,5-difluoro-
ethyl 1-[4-(trifluoromethyl)phenyl]piperidine-4-carboxylate
1-(3,6-dibromo-9H-carbazol-9-yl)-3-(dimethylamino)propan-2-ol
2-Propenoic acid,2-methyl-, C12-15-branched and linear alkyl esters, polymers with2-(dimethylamino)ethyl methacrylate and Me methacrylate
6-({2-[4-(4-fluorobenzyl)piperidin-1-yl]ethyl}sulfinyl)-1,3-benzoxazol-2(3H)-one
2(3H)-Benzoxazolone,6-[[2-[4-(phenylmethyl)-1-piperidinyl]ethyl]sulfinyl]-
3-Cyclohexene-1-carbonitrile,4,6-dimethyl-2-oxo-, (6S)-
2-氯-1-甲基-1H-咪唑
2-Chloro-1-methyl-1H-imidazole
(2E)-2-[(benzoyloxy)imino]-1-[4-(phenylsulfanyl)phenyl]octan-1-one
4-(1,2,3-thiadiazol-4-yl)benzyl imidothiocarbamate hydrobromide
2-Piperidinemethanol,5-amino-4-hydroxy-, (2S,4R,5S)-
2-Piperidinemethanol,5-amino-4-hydroxy-, (2S,4S,5S)-
L-Leucine,N-[(phenylmethoxy)carbonyl]-D-tryptophyl- (9CI)
L-Threonine,N-methyl-N-[(phenylmethoxy)carbonyl]-
Cbz-D-allo-Ile·DCHA
hept-2-enyl 3-methylbutanoate
Benzenamine,3-methoxy-N-(methoxymethyl)-
Benzenamine,3-fluoro-N-(methoxymethyl)-
1H-Indole-3-propanoicacid, 1-[(1,1-dimethylethoxy)carbonyl]-, methyl ester
N-(tert-butyl)hydroxylamine acetate
2,6,3,5-Ethanediylidene-2H-pentaleno[1,6-bc]furan-2-aceticacid, a,a-difluorooctahydro- (9CI)
5H-Thiazolo[3,2-c]oxazole(9CI)
Benzenepropanoic acid, a,4-dimethyl-b-methylene-
2-Oxazolidinone,5-ethynyl-4-(1-methylethyl)-, (4S,5S)-
2-Oxazolidinone,5-ethynyl-4-(1-methylethyl)-, (4S,5R)-
Cyclohexanone,4-ethoxy-2,3-difluoro-
2-[(tert-butoxycarbonyl)amino]-5-chlorobenzoic acid
[1,1'-Biphenyl]-3-carbonitrile,4'-(hydroxymethyl)-
[1,1'-Biphenyl]-3-carboxylicacid, 3'-cyano-
b-D-Glucopyranoside, undecyl 4-O-a-D-glucopyranosyl-
[1,1'-Biphenyl]-3-carbonitrile,2',3'-dihydroxy-4'-methyl-
[1,1'-Biphenyl]-3-carbonitrile,2',5'-dihydroxy-4'-methyl-
2-Furancarboxylic acid,5-(3-cyanophenyl)-
D-Glucose-1-13C,2-(acetylamino)-2-deoxy- (9CI)
4,5,6,7-tetrahydro[1,2]oxazolo[4,5-c]pyridine
Siloxanes andSilicones, 3-[[2-[(3-carboxy-1-oxoundecen-1-yl)amino]ethyl]amino]propyl Me,di-Me, compds. with morpholine
Oxazole,4,5-dihydro-4-(1-methylethyl)-2-propyl-, (4S)-
Pyridine,2-chloro-5-(fluoromethyl)-
4-(2-hydroxy-1,1-dimethylethyl)-N-[6-(2-hydroxyethoxy)-5-(2-methoxyphenoxy)-2,2'-bipyrimidin-4-yl]benzenesulfonamide
Ruthenium,[1,3-bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene]dichloro(3-methyl-2-buten-1-ylidene)(tricyclohexylphosphine)-,(SP-5-41)-
transferfactor
4-Quinazolinamine,1,2-dihydro-
Cyclopropanecarboxylicacid, 2-[[[(1,1-dimethylethoxy)carbonyl]amino]methyl]-, (1S,2S)-
1H-indazole-5-carbaldehyde
4-Pyridinecarbonitrile,2-(4-formylphenyl)-
Acetic acid,2-[[(carboxyamino)carbonyl]amino]-2-oxo-
Alcohol dehydrogenase(Arabidopsis thaliana gene At2g37760) (9CI)
2-Furanmethanol,5-ethynyltetrahydro-, (2R,5R)-
2,4-二甲基-5-醛基-吡咯-3-羧酸
5- Formyl-2,4-Dimethyl-1H-Pyrrole-3-Carboxylic Acid
Glycine,N-(1,1-dimethylethyl)-N-methyl-
Ethanone,1-(2,3-dihydrofuro[2,3-b]pyridin-6-yl)-
Bicyclo[3.2.1]octane-2,2-diol
Propanenitrile,3-(dimethylamino)-, hydrobromide (1:1)
Pyrrolo[2,1-c][1,2,4]triazin-4-amine
Pyrrolo[2,1-c][1,2,4]triazin-3-amine (9CI)
Imidazo[2,1-c][1,2,4]triazin-4-amine
Imidazo[2,1-c][1,2,4]triazin-3-amine
Imidazo[5,1-c][1,2,4]triazin-4-amine
Imidazo[5,1-c][1,2,4]triazin-3-amine
Boc-L-beta-谷氨酸 5-苄酯
Boc-L-beta-glutamic acid 5-benzyl ester
Boc-L-beta-homothreonine(Obzl)
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one,3',6'-bis(acetyloxy)-4-amino-2',7'-difluoro-5-(methylamino)-
9-chloro-5-methyl-5H-benzo[5,6]thiino[4,3-d]pyrimidin-2-amine
2-[4-(1,2,3-thiadiazol-4-yl)phenyl]ethanethioamide
Pyridine,3-(2H-azirin-3-yl)-
1,2,6-Triazaspiro[4.4]nonane(9CI)
(2S,3S)-3-氨基-2-羟基庚酸
(2S,3S)-3-Amino-2-hydroxyheptanoic acid
1-Boc-3-碘氮杂环丁烷
1-Boc-3-iodoazetidine
Boronic acid,B-[4-(1,3-dioxan-2-yl)phenyl]-
iodozinc(1+) methoxybenzenide
tetrakis[2-(2-butoxyethoxy)ethoxy]silane
ethyl 2-(4-amino-3-methoxyphenyl)-3,3,3-trifluoro-2-hydroxypropanoate
4H-Pyran-2-butanamide,6-hydroxy-b,4-dioxo-

hgspace.com 版权所有 ©2008-2011 联系我们 京ICP备11005346号