75-09-2
75-09-2 / 99.9%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Dichloromethane 二氯甲烷
{Zemical} 危险品
75-09-2 / 99.9%, SpcDry, stabilized with Amylene, Water≤50 ppm (by K.F.), SpcSeal
Dichloromethane 二氯甲烷
{Zemical} 危险品
75-09-2 / 99.9%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.)
Dichloromethane 二氯甲烷
{Zemical} 危险品
75-09-2 / 99.9%
Dichloromethane 二氯甲烷
{Zemical} 危险品
75-09-2 / 99.9%, SpcDry, with molecular sieves, Water≤30 ppm (by K.F.), SpcSeal
Dichloromethane 二氯甲烷
{Zemical} 危险品

123-91-1
123-91-1 / 99%, SpcDry, with molecular sieves, stabilized with BHT, Water≤50 ppm(by K.F.),SpcSeal
1,4-Dioxane 1,4-二氧六环
{Zemical} 危险品
123-91-1 / 99.7%, SpcDry, stabilized with BHT, Water≤50 ppm (by K.F.), SpcSeal
1,4-Dioxane 1,4-二氧六环
{Zemical} 危险品
123-91-1 / 99%, SpcDry, stabilized with BHT, Water≤50 ppm (by K.F.), SpcSeal
1,4-Dioxane 1,4-二氧六环
{Zemical} 危险品
123-91-1 / 99%
1,4-Dioxane 1,4-二氧六环
{Zemical} 危险品
123-91-1 / 99.9%
1,4-Dioxane 1,4-二氧六环
{Zemical} 危险品

67-63-0
67-63-0 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Isopropanol 异丙醇
{Zemical} 危险品
67-63-0 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Isopropanol 异丙醇
{Zemical} 危险品
67-63-0 / 99%
Isopropanol 异丙醇
{Zemical} 危险品
67-63-0 / 99.8%, electronic grade
Isopropanol 异丙醇
{Zemical} 危险品

67-68-5
67-68-5 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Dimethyl sulfoxide 二甲基亚砜
67-68-5 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Dimethyl sulfoxide 二甲基亚砜
67-68-5 / 99%
Dimethyl sulfoxide 二甲基亚砜
67-68-5 / 粗品
Dimethyl sulfoxide 二甲基亚砜

68-12-2
68-12-2 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
N,N-Dimethylformamide N,N-二甲基甲酰胺
{Zemical} 危险品
68-12-2 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
N,N-Dimethylformamide N,N-二甲基甲酰胺
{Zemical} 危险品
68-12-2 / 99%
N,N-Dimethylformamide N,N-二甲基甲酰胺
{Zemical} 危险品

109-99-9
109-99-9 / 99.5%, SpcDry, with molecular sieves, stabilized with BHT, Water≤50 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, stabilized with BHT, Water≤50 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.)
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, Water≤150 ppm (by K.F.)
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, Water≤300 ppm (by K.F.)
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.9%, for spectroscopy
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, with molecular sieves, NO peroxide,Water≤50 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, with molecular sieves, stabilized with BHT, Water≤20 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, Nan Ya
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99e1 % water 50 ppm
{Zemical} 危险品
109-99-9 / 99e1 %
{Zemical} 危险品
109-99-9 / 99e1 %
{Zemical} 危险品
109-99-9 / 99e1 %
{Zemical} 危险品
109-99-9 / 99e1 %
{Zemical} 危险品
109-99-9 / 99e1 %
{Zemical} 危险品
109-99-9 / 测试
{Zemical} 危险品
109-99-9 / 99.99
{Zemical} 危险品
109-99-9 / 96
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品

75-05-8
75-05-8 / 99.9%, SpcDry, Water≤50ppm (by K.F.), SpcSeal
Acetonitrile 乙腈
{Zemical} 危险品
75-05-8 / 99.9%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Acetonitrile 乙腈
{Zemical} 危险品
75-05-8 / 99.9%
Acetonitrile 乙腈
{Zemical} 危险品
75-05-8 / 99.9%,HPLC
Acetonitrile 乙腈
{Zemical} 危险品
75-05-8 / 99.9%,gradient HPLC grade
Acetonitrile 乙腈
{Zemical} 危险品
75-05-8 / SpcDry, with molecular sieves, Water≤10 ppm (by K.F.), SpcSeal
Acetonitrile 乙腈
{Zemical} 危险品

110-86-1
110-86-1 / 99%, SpcDry,with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Pyridine 吡啶
{Zemical} 危险品
110-86-1 / 99%
Pyridine 吡啶
{Zemical} 危险品
110-86-1 / 99.5%
Pyridine 吡啶
{Zemical} 危险品
110-86-1 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Pyridine 吡啶
{Zemical} 危险品

141-78-6
141-78-6 / 99.8%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Ethyl acetate 乙酸乙酯
{Zemical} 危险品
141-78-6 / 99.8%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Ethyl acetate 乙酸乙酯
{Zemical} 危险品
141-78-6 / 99.8%
Ethyl acetate 乙酸乙酯
{Zemical} 危险品

67-56-1
67-56-1 / 99.8%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Methanol 甲醇
{Zemical} 危险品
67-56-1 / 99.8%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Methanol 甲醇
{Zemical} 危险品
67-56-1 / 99.8%, HPLC
Methanol 甲醇
{Zemical} 危险品
67-56-1 / 99.8%
Methanol 甲醇
{Zemical} 危险品

75-65-0
75-65-0 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
tert-Butanol 叔丁醇
{Zemical} 危险品
75-65-0 / 99%
tert-Butanol 叔丁醇
{Zemical} 危险品
75-65-0 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
tert-Butanol 叔丁醇
{Zemical} 危险品

110-54-3
110-54-3 / 97%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
n-Hexane 正己烷
{Zemical} 危险品
110-54-3 / 97%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
n-Hexane 正己烷
{Zemical} 危险品
110-54-3 / 97%
n-Hexane 正己烷
{Zemical} 危险品
110-54-3 / 粗品(四氟硼酸亚硝淋洗)
n-Hexane 正己烷
{Zemical} 危险品
110-54-3 / 粗品(H63075回收)
n-Hexane 正己烷
{Zemical} 危险品

100-47-0
100-47-0 / 99%
Benzonitrile 苯甲腈
{Zemical} 危险品
100-47-0 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Benzonitrile 苯甲腈
{Zemical} 危险品
100-47-0 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Benzonitrile 苯甲腈
{Zemical} 危险品

56-23-5
56-23-5 / 99.5%
Carbon tetrachloride 四氯化碳
{Zemical} 危险品
56-23-5 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Carbon tetrachloride 四氯化碳
{Zemical} 危险品
56-23-5 / 99.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Carbon tetrachloride 四氯化碳
{Zemical} 危险品
56-23-5 / 99%(99.99% - C)
Carbon tetrachloride 四氯化碳
{Zemical} 危险品

544-76-3
544-76-3 / 99%
Hexadecane 正十六烷
544-76-3 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
n-Hexadecane 正十六烷
544-76-3 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
n-Hexadecane 正十六烷

79-01-6
79-01-6 / 99%
Trichloroethylene 三氯乙烯
79-01-6 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Trichloroethylene, 三氯乙烯
79-01-6 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Trichloroethylene 三氯乙烯

64-17-5
64-17-5 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Ethanol 乙醇
{Zemical} 危险品
64-17-5 / 99.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Ethanol 乙醇
{Zemical} 危险品
64-17-5 / 99.5%
Ethanol 无水乙醇
{Zemical} 危险品
64-17-5 / 99.5%, HPLC
Ethanol 乙醇
{Zemical} 危险品
64-17-5 / 95%
Ethanol 乙醇
{Zemical} 危险品

127-19-5
127-19-5 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
N,N-Dimethylacetamide N,N-二甲基乙酰胺
127-19-5 / 99%
N,N-Dimethylacetamide N,N-二甲基乙酰胺
127-19-5 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
N,N-Dimethylacetamide N,N-二甲基乙酰胺

71-36-3
71-36-3 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
1-Butanol 正丁醇
{Zemical} 危险品
71-36-3 / 99.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
1-Butanol 正丁醇
{Zemical} 危险品
71-36-3 / 99%
1-Butanol 正丁醇
{Zemical} 危险品

75-09-2 / 99.9%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Dichloromethane 二氯甲烷
{Zemical} 危险品
123-91-1 / 99%, SpcDry, with molecular sieves, stabilized with BHT, Water≤50 ppm(by K.F.),SpcSeal
1,4-Dioxane 1,4-二氧六环
{Zemical} 危险品
67-63-0 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Isopropanol 异丙醇
{Zemical} 危险品
67-68-5 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Dimethyl sulfoxide 二甲基亚砜
68-12-2 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
N,N-Dimethylformamide N,N-二甲基甲酰胺
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, with molecular sieves, stabilized with BHT, Water≤50 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
109-99-9 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Tetrahydrofuran 四氢呋喃
{Zemical} 危险品
67-56-1 / 99.8%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Methanol 甲醇
{Zemical} 危险品
110-54-3 / 97%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
n-Hexane 正己烷
{Zemical} 危险品
110-54-3 / 97%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
n-Hexane 正己烷
{Zemical} 危险品
64-17-5 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Ethanol 乙醇
{Zemical} 危险品
64-17-5 / 99.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Ethanol 乙醇
{Zemical} 危险品
127-19-5 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
N,N-Dimethylacetamide N,N-二甲基乙酰胺
71-36-3 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
1-Butanol 正丁醇
{Zemical} 危险品
108-90-7 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Chlorobenzene 氯苯
{Zemical} 危险品
110-82-7 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Cyclohexane 环己烷
{Zemical} 危险品
110-71-4 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
1,2-Dimethoxyethane 乙二醇二甲醚
{Zemical} 危险品
109-86-4 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
2-Methoxyethanol 2-甲氧基乙醇
{Zemical} 危险品
872-50-4 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
1-Methyl-2-pyrrolidone 1-甲基-2-吡咯烷酮
96-47-9 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
2-Methyltetrahydrofuran 2-甲基四氢呋喃
{Zemical} 危险品
108-38-3 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
m-Xylene 间二甲苯
{Zemical} 危险品
142-82-5 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Heptane 正庚烷
{Zemical} {Zemical} 危险品 {Zemical} 危险品
111-65-9 / 98%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
n-Octane 正辛烷
{Zemical} 危险品
71-23-8 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
1-Propanol 正丙醇
{Zemical} 危险品
78-92-2 / 99.5%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
2-Butanol 仲丁醇
{Zemical} 危险品
1634-04-4 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
tert-Butyl methyl ether 甲基叔丁基醚
{Zemical} 危险品
1330-20-7 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Xylenes 二甲苯
{Zemical} 危险品
122-51-0 / 98%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Triethyl orthoformate 原甲酸三乙酯
{Zemical} 危险品
127-18-4 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Tetrachloroethylene 四氯乙烯
{Zemical} 危险品
123-92-2 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Isoamyl acetate 乙酸异戊酯
5614-37-9 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Cyclopentyl methyl ether 环戊基甲基醚
79-20-9 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Methyl acetate 乙酸甲酯
{Zemical} 危险品
792-01-0 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Methyl acetate 乙酸甲酯
95-47-6 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
o-Xylene 邻二甲苯
{Zemical} 危险品
108-32-7 / 99.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Propylene carbonate 碳酸丙烯酯
120-82-1 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
1,2,4Trichlorobenzene 1,2,4-三氯苯
{Zemical} 危险品
868-77-9 / 98%, stabilized with 200 ppm MEHQ
2-Hydroxyethyl Methacrylate 甲基丙烯酸羟乙酯
107-21-1 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Ethylene glycol 乙二醇
100-41-4 / 99.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Ethylbenzene 乙基苯
{Zemical} 危险品
540-84-1 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
2,2,4-Trimethylpentane 2,2,4-三甲基戊烷
{Zemical} 危险品
107-88-0 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
1,3-Butanediol 1,3-丁二醇
646-06-0 / 99.5%, SpcDry, stabilized with BHT, Water≤50 ppm (by K.F.), SpcSeal
1,3-Dioxolane 1,3-二氧戊环
111-27-3 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Hexanol 正己醇
111-87-5 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
1-Octanol 1-辛醇
78-83-1 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
2-Methyl-1-propanol 2-甲基-1-丙醇
{Zemical} 危险品
78-78-4 / 98%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
2-Methylbutane 2-甲基丁烷
123-51-3 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
3-Methyl-1-butanol 3-甲基-1-丁醇
{Zemical} 危险品
100-51-6 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Benzyl alcohol 苄醇
108-20-3 / 98%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Diisopropyl ether 异丙醚
{Zemical} 危险品
616-38-6 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Dimethyl carbonate 碳酸二甲酯
{Zemical} 危险品
98-08-8 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Benzotrifluoride 三氟甲苯
100-66-3 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Anisole 苯甲醚
{Zemical} 危险品
71-43-2 / 99%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Benzene 苯
{Zemical} 危险品
100-47-0 / 99%, SpcDry, with molecular sieves, Water≤50 ppm (by K.F.), SpcSeal
Benzonitrile 苯甲腈
{Zemical} 危险品
124-18-5 / 98.5%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
n-Decane 正癸烷
{Zemical} 危险品
119-64-2 / 97%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
1,2,3,4-Tetrahydronaphthalene 1,2,3,4-四氢萘
109-66-0 / 97%, SpcDry, Water≤50 ppm (by K.F.), SpcSeal
Pentane 正戊烷
{Zemical} 危险品
67-64-1 / anhydrous, 99,8%
Acetone, anhydrous, 99,8% 无水丙酮,99.8%
{} {} {} {} {} {} {} 易制毒化学品 {Zemical} 易制毒
N/A / anhydrous, 99,9%
Methanol, anhydrous, 99,9% 无水甲醇,99.9%
68-12-2 / anhydrous, with molecular sieves
N,N-Dimethylformamide, anhydrous, with molecular sieves 无水二甲基甲酰胺,含分子筛
{Zemical} 危险品
68-12-2 / anhydrous, 99,8%
N,N-Dimethylformamide, anhydrous, 99,8% 无水二甲基甲酰胺,99.8%
{Zemical} 危险品
67-68-5 / anhydrous, 99,7%
Dimethyl sulfoxide, anhydrous, 99,7% 无水二甲基亚砜,99.7%
67-68-5 / anhydrous, with molecular sieves
Dimethyl sulfoxide, anhydrous, with molecular sieves 无水二甲基亚砜,分子筛浸泡的
110-86-1 / anhydrous, with molecular sieves
Pyridine, anhydrous, with molecular sieves 无水吡啶,含分子筛
{Zemical} 危险品
110-86-1 / anhydrous
Pyridine, anhydrous 无水吡啶
{Zemical} 危险品
109-99-9 / anhydrous, with molecular sieves, stabilized with 2,6-Di-tert-butyl-4-methylphenol (BHT)
Tetrahydrofuran, anhydrous, with molecular sieves, stabilized with 2,6-Di-tert-butyl-4-methylphenol (BHT) 无水四氢呋喃,含分子筛
{Zemical} 危险品
109-99-9 / anhydrous, 99,9%, stabilized with 250 ppm of 2,6-Di-tert-butyl-4-methylphenol (BHT)
Tetrahydrofuran, anhydrous, 99,9%, stabilized with 250 ppm of 2,6-Di-tert-butyl-4-methylphenol (BHT) 无水四氢呋喃,99.9%
{Zemical} 危险品
123-91-1 / anhydrous, with molecular sieves
1,4-Dioxane, anhydrous, with molecular sieves 无水1,4-二氧六环,带分子筛
{Zemical} 危险品
75-05-8 / anhydrous, with molecular sieves
Acetonitrile, anhydrous, with molecular sieves 无水乙腈,带分子筛
{Zemical} 危险品
75-05-8 / anhydrous, 99,9%
Acetonitrile, anhydrous, 99,9% 无水乙腈
{Zemical} 危险品
872-50-4 / anhydrous, with molecular sieves
1-Methyl-2-pyrrolidone, anhydrous, with molecular sieves 无水甲基吡咯烷酮,带分子筛
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