2010-03-08 08:00:43 阅读7 评论0 字号:大中小
引用 的 引用 的 中间体类产品
工厂位于苏北地区,多供应一些高污染的产品,主要产品如下:(也可以承担定制合成,特别是大吨位的高污染的产品)
英文名 品名 同义词 CAS 号
p-nitro-m-cresol 对硝基间甲酚 3-methyl-4-nitrophenol,3-甲基-4-硝基苯酚,4-硝 2581-34-2
3-methyl-4-methylthiophenol 对甲硫基间苯酚 3120-74-9
2-chloro-4-bromophenol 2-氯-4-溴苯酚 3964-56-5
2-chlorophenol 邻氯苯酚 95-57-8
p-methylthiophenol 对甲硫基苯酚 1073-72-9
p-cyanophenol 对氰基苯酚 p-hydroxybenzonitrile,对羟基苯腈 767-00-0
Iso-propyl salicylate 水杨酸异丙酯 7053-88-5
phenicarbazid 1-苯基氨基脲 103-03-7
1-phenyl-3-hydroxy-1,2,4-triazole 1-苯基-3-羟基-1,2,4-三唑 苯唑醇 4231-68-9
2-hydroxy-3,5,6--trichloropyridine 2-羟基-3,5,6-三氯吡啶 三氯吡啶醇 37439-34-2
2-isopropyl-4-methyl-6-hydroxypyrimidine 2-异丙基-4-甲基-6-羟基嘧啶 2814-20-2
2-phenyl-6-hydroxy-3-pyridazone 2-苯基-6-羟基-3-哒嗪酮 1698-54-0
2-methoxy-4-methyl-6-hydroxy pyrimidine 2-甲氧基-4-甲基-6-羟基嘧啶 甲基嘧啶醇 55996-28-6
3-chloro-4-methyl-7-hydroxycoumarin 3-氯-4-甲基-7-羟基香豆素 6714-86-3
2-hydroxy quinoxaline 2-羟基喹噁啉 2-羟 1196-57-2
2-(1-methylethoxy)-phenol 2-异丙氧基苯酚 2-(1-甲基乙氧基)苯酚 4812-20-8
4-hydroxy diphenyl ether 4-羟基二苯醚 4-苯氧基苯酚 831-82-3
3,5-xylenol 3,5-二甲酚 3,5-dimethyl phenol 108-68-9
3,5-dimethyl-4-(methylthio)-phenol 3,5-二甲基-4-甲硫基苯酚 7379-51-3
3-(1,1-dimethylethyl)-5-mercapto-1,2,4-triazole 3-叔丁基-5-巯基-1,2,4-三唑 三氮唑 38449-51-3
4-chloro benzoyl chloride 对氯苯甲酰氯 122-01-0
2-[2-氯-4-(三氟甲基)苯胺基]-3-甲基丁酸 氟胺菊酸 76769-07-8
S-2-(4-chlorophenyl)-3-methylbutyric acid S-2-(4-氯苯基)-3-甲基丁酸 55332-38-2
3-bromo-4-fluoro benzaldehyde 3-溴-4-氟苯甲醛 77771-02-9
p-chloroaniline 对氯苯胺 106-47-8
o-chloro benzoyl chloride 邻氯苯甲酰氯 609-65-4
o-chlorobenzamide 邻氯苯甲酰胺 609-66-5
2-chloro-6-nitrotoluene 2-氯-6-硝基甲苯 83-42-1
2,6-dichlorobenzyl-dichloride 2,6-二氯-二氯苄 2,6-二氯亚苄基二氯 81-19-6
2,6-dichlorobenzaldehyde 2,6-二氯苯甲醛 83-38-5
2,6-dichlorobenzonitrile 2,6-二氯苯腈 1194-65-6
2,6-difluorobenonitrile 2,6-二氟苯腈 1897-52-5
p-nitrophenol 对硝基苯酚 100-02-7
2,6-dichloro-4-nitrophenol 2,6-二氯-4-硝基苯酚 618-80-4
2,6-dichloro-4-aminophenol 2,6-二氯-4-氨基苯酚 3,5-二氯-4-羟基苯胺 5930-28-9
2,6-dichloro-4-aminophenol 2,6-二氯-4-氨基苯酚 3,5-二氯-4-羟基苯胺 5930-28-9
2,3-dichloro-5-trifluoromethylpyridine 2,3-二氯-5-三氟甲基吡啶 69045-84-7
2,5-dichloro-4-amino phenol 2,5-二氯-4-氨基苯酚 50392-39-7
2,4,5-trichloro nitrobenzene 2,4,5-三氯硝基苯 89-69-0
2,3,4,5-tetrachloro nitrobenzene 2,3,4,5-四氯硝基苯 879-39-0
p-nitrobenzyl bromide 对硝基苄基溴 对硝基溴苄,对硝基苯xxx 100-11-8
Benbzene sulfonyl chloride 苯磺酰氯 98-09-9
3-methylpyridine-N-oxide 3-甲基吡啶-N-氧化物 1003-73-2
2-chloro-5-methylpyridine 2-氯-5-甲基吡啶 一氯化物 18368-64-4
2-chloro-5-chloromethylpyridine 2-氯-5-氯甲基吡啶 70258-18-3
2-amino-5-methyl pyridine 2-氨基-5-甲基吡啶 1603-41-4
2-chloro-5-cyano pyridine 2-氯-5-氰基吡啶 33252-28-7
2-chloro-5-hydroxymethyl pyridine 2-氯-5-羟甲基吡啶 21543-49-7
2-chloro-5-aminomethyl pyridine 2-氯-5-氨甲基吡啶 97004-04-1
2-chloro-5-ethylamino methyl pyridine 2-氯-5-乙胺基甲基吡啶 120739-77-7
5-氨基-3-氰基-1-(2,6-二氯-4-三氟甲基苯基)吡唑 120068-79-3
2,6-dichloro-4-trifluoro-methyl phenylhydrazine 2,6-二氯-4-三氟甲基苯肼 86398-94-9
2,6-dichloro-4-trifluoromethyl aniline 2,6-二氯-4-三氟甲基苯胺 24279-39-8
2-chloro acrylonitrile 2-氯丙烯腈 920-37-6
4-chloro-α-methylamino-benzene-acetic acid 2-对氯苯基肌氨酸 143209-97-6
2-对氯苯基-N-三氟乙酰基肌氨酸 143209-98-7
2-N-cyclopropylamino-4,6-dichloro triazine 2-环丙胺基-4,6-二氯均三嗪 32889-45-5
3,5-dimethyl benzoic azid 3,5-二甲基苯甲酸 499-06-9
3,5-dimethyl benzoyl chloride 3,5-二甲基苯甲酰氯 6613-44-1
4-ethyl benzoic acid 4-乙基苯甲酸 619-64-7
4-ethyl benzoyl chloride 4-乙基苯甲酰氯 1633-45-6
3-methoxy-2-methyl benzoic acid 3-甲氧基-2-甲基苯甲酸 55289-06-0
2,4-dimethyl aniline 2,4-二甲基苯胺 95-68-1
o-chlorobenzaldehyde 邻氯苯甲醛 2-氯苯甲醛 89-98-5
Bis-(2-chlorobenzal) hydrazine 双(2-氯亚苄基)肼 5328-80-3
Bis-(α,2-dichloro benzal) hydrazine 双-(α,2-氯亚苄基)肼 792-39-2
3,6-双(2-氯苯基)-1,2-二氢-1,2,4,5-四嗪 74115-15-4
4-bromo-2,6-bis(1-methylethyl)benzenamine 4-溴-2,6-二异丙基苯胺 80058-84-0
ethyl 3-ethylpyrazolyl-5-carboxylate 3-乙基吡唑-5-羧酸乙酯
ethyl 3-ethyl-1-methylpyrazolyl-5-carboxylate 3-乙基-1-甲基吡唑-5-羧酸乙酯 128537-26-8
4-氯-3-乙基-1-甲基吡唑-5-羧酸乙酯 128537-47-3
4-tert-butyl-benzylamine 对叔丁基苄胺 4-叔丁基苄胺 39895-55-1
1,3-dimethoxybenzene 1,3-二甲氧基苯 151-10-0
2,6-dimethoxy benzoic acid 2,6-二甲氧基苯甲酸 1466-76-8
1,3-dimethyl-1 H-pyrazol-5-on
1,3-二甲基-5-氯-4-醛基吡唑 27006-76-4
1,3-二甲基-5-苯氧基-4-醛基吡唑 109925-10-2
1,3-二甲基-5-苯氧基吡唑-4-羧酸醛肟 110035-28-4
4-bromomethyl benzoyl chloride 4-溴甲基苯甲酰氯 52780-16-2
1,1-dimethylethyl 4-(bromomethyl)benzoate 4-溴甲基苯甲酸叔丁酯 108052-76-2
4-(3H)-quinazolinone 4-(3H)喹唑啉酮 491-36-1
4-chloro quinazoline 4-氯喹唑啉 5190-68-1
p-tert-butyl bromo benzene 对叔丁基溴苯 3972-65-4
1-phenyl-2-propanone 1-苯基-2-丙酮 103-79-7
4-phenyl-3-buten-2-on
1,1-diphenyl acetone 1,1-二苯基丙酮 781-35-1
1-phenyl-1-p-chloro phenyl acetone 1-苯基-1-对氯苯基丙酮 42413-59-2
acetyl salicylic acid 乙酰水杨酸 50-78-2
4-bromo biphenyl 4-溴联苯 92-66-0
3-(4’-溴-4-联苯基)-1,2,3,4-四氢-1-萘酚 56181-81-9
3-(4-biphenyl-4-yl)-1,2,3,4-tetrahydro naphthanol 3-(4-联苯基)-1,2,3,4-四氢-1-萘酚 56181-66-9
1-(4-溴联苯-4-基)-3-苯基-2-丙烯-1-酮 85098-88-0
2-chloro-3,5-dinitro benzotrifluoride 2-氯-3,5-二硝基三氟甲苯 392-95-0
N-甲基-N-苯基-2,4-二硝基-6-三氟甲基苯胺 63333-32-4
4-hydroxy coumarin 4-羟基香豆素 501-98-4
4-hydroxy-2 H-benzothiopyran-2-on
2,6-dichloro-4-methyl phenol 2,6-二氯-4-甲基苯酚 2432-12-4
N,N-dimethyl-1,4-phenylene diamine N,N-二甲基对苯二胺 99-98-9
2,3,4,5,6-pentachlorobenzyl chloride 2,3,4,5,6-五氯氯苄 2136-78-9
2,6-dimethyl aniline 2,6-二甲基苯胺 87-62-7
3,5-dichloro aniline 3,5-二氯苯胺 626-43-7
o-toluoyl chloride 邻甲基苯甲酰氯 933-88-0
m-isopropyloxy aniline 间异丙氧基苯胺 41406-00-2
phenyl acetyl chloride 苯乙酰氯 103-80-0
2-trifluoromethyl benzoyl chloride 邻三氟甲基苯甲酰氯 312-94-7
3,4-diethoxy nitrobenzene 3,4-二乙氧基硝基苯 4992-63-6
benzimidazole 苯并咪唑 51-17-2
imidazole 咪唑 288-32-4
ω-bromo-2,4-dichloro acetophenone ω-溴-2,4-二氯苯乙酮 2631-72-3
2,4-dichloro acetophenone 2,4-二氯苯乙酮 2234-16-4
monobromo acetyl chloride 溴乙酰氯 22118-09-8
1-1H-1,2,4-rtiazolyl pinacolone 1-(1H-1,2,4-三唑-1-基)频那酮 118089-57-9
4-chlorobenzyl pinacolone 4-氯苄基频那酮 5-(4-chlorophenyl)-2,2-dimethyl pentanone-3 .5-(4-氯苯基)-2,2-二苯基-3-戊酮 127141-86-0
4-chloro benzaldehyde 对氯苯甲醛 104-88-1
4-chloro phenol 对氯苯酚 4-氯苯酚 108-43-0
4-phenyl phenol 联苯酚 对苯基苯酚 92-69-3
2,4-dichloro benzaldehyde 2,4-二氯苯甲醛 874-42-0
2,4-dichlorotoluene 2,4-二氯甲苯 95-73-8
2,4-dichloro benzyl chloride 2,4-二氯苄氯 94-99-5
2,4-dichloro benzal chloride 2,4-二氯亚苄基二氯 134-25-8
2,4'-diflueorobenzophenone 2,4'-二氟二苯酮 342-25-6
1-bromo-4-fluoro benzene 1-溴-4-氟苯 460-00-4
2,4,6-trichlorophenol 2,4,6-三氯苯酚 88-06-2
2-(2,4,6-trichloro phenoxy)chloroethane 2-(2,4,6-三氯苯氧基)乙基氯 13001-29-1
2-(2,4,6-trichloro phenoxy)bromoethane 2-(2,4,6-三氯苯氧基)乙基溴 26378-23-4
4,6-dichloro pyrimidine 4,6-二氯嘧啶 1193-21-1
2-(a-hydroxyethyl) benzimidazole 2-(a-羟基乙基)苯并咪唑 1908-24-7
2-acetyl benzimidazole 2-乙酰基苯并咪唑 18773-95-0
3-bromo pyruvic acid 3-溴代丙酮酸 1113-59-3
methyl 3-bromopyruvate 3-溴丙酮酸甲酯 7425-63-0
thiazole-4-carboxylic acid 噻唑-4-羧酸 3973-08-8
4-chloro benzoic acid 对氯苯甲酸 4-氯苯甲酸 74-11-3
p-chloro benzoyl chloride 对氯苯甲酰氯 4-氯苯甲酰氯 122-01-0
4-fluorobenzoyl chloride 对氟苯甲酰氯 4-氟苯甲酰氯 403-43-0
4-fluoro-2'-chlorobenzophenone 4-氟-2'-氯二苯酮 1806-23-1
2-chlorobenzoic acid 邻氯苯甲酸 118-91-2
o-methyl phenyl thiourea 邻甲基苯硫脲 614-78-8
o-methyl aniline 邻甲苯胺 95-53-4
4-methyl-2-amimobenzothiazol 4-甲基-2-氨基苯并噻唑 1477-42-5
4-methyl-2-hydrazino benzothiazol 4-甲基-2-肼基苯并噻唑 20174-68-9
saccharin 不溶性糖精 O-benzoic sulfimide,1,2-benzisothiaxol-3(2h)-on
2,4-dichloro benzoic acid 2,4-二氯苯甲酸 50-84-0
ethyl 2,4-dichloro benzoate 2,4-二氯苯甲酸乙酯 56882-52-1
2,4-dichlorophenol 2,4-二氯苯酚 120-83-2
phenoxyacetc acid 苯氧乙酸 122-59-8
p-chlorobenotrifluoride 对氯三氟甲苯 98-56-6
p-chloro benzotrichloride 对氯三氯甲苯 5216-25-1
2-benzoxazolinone 2-苯并噁唑酮 2(3H)benzoxazolone 59-49-4
2,6-dichloro benzoxazole 2,6-二氯苯并噁唑 3621-82-7
6-chloro-2-benzoxazolyl oxy phenol 6-氯-2-苯并噁唑氧基苯酚 70217-01-5
o-amino phenol 邻氨基苯酚 95-55-6
p-dihydroxybenzene, hydroquinone 对苯二酚 123-31-9
ethyl a-bromo propionoate a-溴代丙酸乙酯 535-13-7
2-bromo propionic acid 2-溴代丙酸 535-11-5
2,6-dichloroquinoxaline 2,6-二氯喹喔啉 18971-97-1
N-4-chloro-2-nitro phenyl aceto acetamide N-(4-氯-2-硝基苯基)乙酰基乙酰胺 156499-65-9
p-chloro-o-nitroaniline 对氯邻硝基苯胺 89-63-4
2-chloro-5-trifluoromethyl pyridine 2-氯-5-三氟甲基吡啶 52334-81-3
2,3-dichloro-5-trifluoromethyl pyridine 2,3-二氯-5-三氟甲基吡啶 69045-84-7
2,6-dichloro benzothiazole 2,6-二氯苯并噻唑 3622-23-9
N,N-diethyl-2-chloro propionamide N,N-二乙基-2-氯丙酰胺 54333-75-4
2-(1-naphthoxy) propionoic acid 2-(1-萘氧基)丙酸 13949-67-2
2-chloro-(N-2,6-diethyl phenyl)acetamide N-2,6-二乙基苯基氯乙酰胺 6967-29-9
2-chloro-(N-2-methyl-6-ethyl phenyl)acetamide N-(2-甲基-6-乙基)苯基氯乙酰胺 32428-71-0
3,4-dichloro aniline 3,4-二氯苯胺 95-76-1
p-nitro toluene 对硝基甲苯 99-99-0
3-chloro-4-methyl nitro benzene 3-氯-4-甲基硝基苯 121-86-8
3,4-dichlorophenyl hydroxy urea 3,4-二氯苯基羟基脲 128523-56-8
1-methyl-3-phenyl thiourea 1-甲基-3-苯基硫脲 2724-69-8
2-methyl amino benzethiazole 2-甲氨基苯并噻唑 16954-69-1
1-isopropyl-4-nitrobenzene 4-硝基异丙基苯 1817-47-6
3-nitro benzotrifluoride 3-三氟甲基硝基苯 98-46-4
a,a,a-trifluro toluene 三氟甲基苯 98-08-8
3,4-dichloro-a,a,a-trifluorotoluene 3,4-二氯三氟甲基苯 328-84-7
m-hydroxy benzoic acid 间羟基苯甲酸 99-06-9
3,4-dimethyl aniline 3,4-二甲基苯胺 95-64-7
3-pentanone 3-戊酮 96-22-0
p-chloro benzene sulfenyl chloride 对氯苯磺酰氯 98-60-2
dichoropinacolone 二氯频那酮 t-butyl dichloromethyl ketone 22591-21-5
3-chloro aniline 间氯苯胺 3-氯苯胺 108-42-9
p-amino benzene sulfonamide 对氨基苯磺酰胺 63-74-1
methyl o-chloromethyl benzoate 邻氯甲基苯甲酸甲酯 34040-62-5
o-methoxycarbonyl benzyl sulfonyl chloride 邻甲氧基羰基苄磺酰氯 103342-27-4
o-methloxy carbonyl benzyl sulfonamide 邻甲氧基羰基苄基磺酰胺 112941-26-1
1-methyl-4-ethoxy carbonyl pyrazole-5-sulfonamide 1-甲基-4-乙氧基羰基吡唑-5-磺酰胺 88396-81-6
1-甲基-4-乙氧基羰基吡唑-5-磺酰氯 93621-38-6
ethyl 1-methyl-5-amino pyrozole carboxylate 1-甲基-5-氨基吡唑-4-羧酸乙酯 1-甲基-4-乙氧基羰基-5-吡啶胺 23286-70-6
N-(1-甲基-4-乙氧基羰基吡唑-5-磺酰基)氨基甲酸乙酯 159709-60-1
methyl 2-amino sulfonylbenzoate 2-氨基磺酰基苯甲酸甲酯 57683-71-3
o-chloro benzene sulfonamide 邻氯苯磺酰胺 6961-82-6
o-ethoxy carbonyl benzene sulfonamide 邻乙氧基羰基苯磺酰胺 59777-72-9
N,N-二甲基-2-氨基磺酰基-3-吡啶甲酰胺 112006-75-4
2-β-chloroethoxy benzene sulfonamide 2-β-氯乙氧基苯磺酰胺 82097-01-6
o-(2-methoxy ethoxy) benzene sulfonamide 邻-(2-甲氧基乙氧基)苯磺酰胺 93093-02-9
methyl-(3-aminosulfonyl thiophen-2-carboxylate) 3-氨基磺酰基噻吩-2-羧酸甲酯 59337-93-8
2-amino-4,6-dimethoxy pyrimidine 2-氨基-4,6-二甲氧基嘧啶 36315-01-2
2-amino-4,6-dichoro pyrimidine 2-氨基-4,6-二氯嘧啶 56-05-3
2-amino-4,6-dihydroxy pyrimidine 2-氨基-4,6-二羟基嘧啶 56-09-7
2-amino-4,6-dimethyl pyrimidine 2-氨基-4,6-二甲基嘧啶 767-15-7
4,6-dihydroxy-2-methyl mercapto pyrimidine 4,6-二羟基-2-甲硫基嘧啶 1979-98-2
2-amino-4-chloro-6-methoxg pyrimidine 2-氨基-4-氯-6-甲氧基嘧啶 5734-64-6
2-amino-4-methoxy-6-methyl-1,3,5-triazine 2-氨基-4-甲氧基-6-甲基-1,3,5-三嗪 1668-54-8
2-amino-4-methylamino-6-ethoxy triazine 2-氨基-4-甲氨基-6-乙氧基三嗪 62096-63-3
2-methylamino-4-methoxy-6-methyl triazine 2-甲氨基-4-甲氧基-6-甲基-均三嗪 5248-39-5
2-amino-4,6-dimethoxy-1,3,5-triazine 2-氨基-4,6-二甲氧基-1,3,5-三嗪 16370-63-1
2-chloro-3-pyridine carboxylic acid 2-氯-3-吡啶羧酸 2942-59-8
2-chloro-5-nitro benzene sulfonic acid 2-氯-5-硝基-苯磺酸 96-73-1
methyl-3-amino-thiophene-2-carboxylate 3-氨基-噻吩-2-羧酸甲酯 22288-78-4
3-(ethylsulfonyl)-2-pyridine sulfonamide 3-(乙磺酰基)-2-吡啶磺酰胺 11671-01-9
2,3-dichloro propionitrile 2,3-二氯丙腈 2101-89-0
pyridine-2,3-dicarboxylic acid 吡啶-2,3-二羧酸 89-00-9
quinoline-2,3-dicarboxylic acid 喹啉-2,3-二羧酸 643-38-9
diethyl-2,3-dichloro succinate 2,3-二氯丁二酸二乙酯 62243-26-9
5-ethyl-2,3-pyridine dicarboxylic acid 5-乙基-2,3-吡啶二羧酸 53636-65-0
2-ethyl acrolein 2-乙基丙烯醛 922-63-4
dicetyl oxalacetate 草酰乙酸二乙酯 108-56-5
5-methoxymethyl-2,3-pyridine dicarboxylic acid 5-甲氧基甲基-2,3-吡啶二羧酸 143382-03-0
2,5-dichloro nitro benzene 2,5-二氯硝基苯 89-61-2
2,5-dichloro phenol 2,5-二氯苯酚 583-78-8
3,6-dichloro-2-hydroxy benzoic acid 3,6-二氯-2-羟基苯甲酸 3401-80-7
1-chloro-4-tert-butyl benzene 对叔丁基氯苯 4830-93-7
4,6-dimethoxy-2-methyl sulfonyl pyrimidine 4,6-二甲氧基-2-甲砜基嘧啶 113583-35-0
4,6-dimethoxy-2-chloro pyrimidine 4,6-二甲氧基-2-氯嘧啶 13223-25-1
2,6-dihydroxy benzoic acid 2,6-二羟基苯甲酸 303-07-1
7-chloro-8-methyl quinoline 7-氯-8-甲基喹啉 28941-93-2
3,7-dichloro-8-chloro methyl quinoline 3,7-二氯-8-氯甲基喹啉 84086-96-4
2-amino-4-chloro benzothiazole 2-氨基-4-氯苯并噻唑 19952-47-7
2,6-dibromo-4-cyanophenol 2,6-二溴-4-氰基苯酚 1689-84-5
4,4-dimethyl isoxazolidin-3-on
3-chloropivaloyl chloride 3-氯特戊酰氯 4300-97-4
2-chloro benzyl chloride 邻氯氯苄 611-19-8
2,4-dichloro-5-nitro phenol 2,4-二氯-5-硝基苯酚 39489-77-5
2,4-dichloro-5-isopropoxy nitro benzene 2,4-二氯-5-异丙氧基硝基苯 41200-96-8
2,4-dichloro benzoyl chloride 2,4-二氯苯甲酰氯 89-75-8
γ-chloro-butyryl chloride γ-氯代丁酰氯 4635-59-0
cyclopropane carboxylic acid 环丙烷羧酸 1759-53-1
cyclopropane carbony chloride 环丙烷甲酰氯 4023-34-1
2-chloro-6-fluoro toluene 2-氯-6-氟-甲苯 443-83-4
3,5-dinitro-4-chloro trifluro toluene 3,5-二硝基-4-氯三氟甲苯 393-75-9
m-chloro benzaldehyde 间氯苯甲醛 89-98-5
5-chloro-2-nitrobenzaldehyde 5-氯-2-硝基苯甲醛 6628-86-0
2-amino-5-chloro-diphenyl methanol 2-氨基-5-氯-二苯甲醇 7039-50-1
m-chloro phenol 间氯苯酚 108-43-0
2-methyl-4-chloro phenol 2-甲基-4-氯苯酚 623-12-1
α-naphthalene acetic acid 萘乙酸 86-87-3
2-chloro-4-amino pyridine 2-氯-4-氨基吡啶 14432-12-3
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