有機試薬

1世紀初期から19世紀中葉まで,主に天然有機物(例えば動物、植物の抽出液)を利用して定性分析や定量分析を行う。19世紀下半葉から20世紀20年代まで,人工的に合成される有機試薬が始めて現れ,例えばオキソジチオ炭酸カリウムでニッケル、銅、モリブデンを検出する;モリンでアルミを検出する;ジアゾカップリング反応で亜硝酸イオンを検出する;α-ニトロソ基-β-ナフトールでコバルトを検出する;ジアセチルジオキシムでニッケルを検出する等。30年代エフェクト基群を提供しかつ50年代末分析官能基群理論を提出した後に,異なるイオンのエフェクト分析官能基群を探すために,大量の有機試薬の選別作業を行い,多くの実用的価値のある試薬(例えば銅試薬、ネオクプロイン試薬、カドミウム試薬、ベリリウム試薬、トロン試薬等)を合成した。50年代前,錯体は分析化学において主に二成分キレート化合物の沈殿反応によって定性的検出、沈殿分離及び重量分析等に用いられ,50~60年代初期錯滴定法を主とし,60年代後期から,研究の重点は光分析に変化し,それと同時にキレート化合物の有機溶剤の抽出を発展させる。8-ヒドロキシキノリン、ヒドラゾン系、オキシム系、ヒドロキサム酸系、ポリフェノール系、1,10-フェナントロリン系、リン酸系抽出剤、β-ジケトン系、トリフェニルメタン系酸性染料、キサンテン系染料及びアゾ系染料等の様々な試薬は広く研究しかつ応用される。その一方,有機試薬の構造に関する論理研究(例えば電子的効果、立体効果、置換基の影響)は新規な有機試薬の開発を推し進め,例えばヘテロ環アゾ系試薬。この間にモノアゾクロモトロプ酸系試薬及びビスアゾクロモトロプ酸系試薬の発展も進んでいる。70年代中期,吸着剤とキレート樹脂は大幅に発展してきた。80年代以来,中国の分析化学研究者はさらに非対称型ビスアゾクロモトロプ酸系試薬の合成と応用分野で良い結果を取得する。 有機試薬は分析化学分野における応用が非常に広く,主に溶剤、沈殿剤、錯化剤、指示薬、発色剤及び界面活性剤等に用いられる。様々な分析要件を満たすために,ある時にある試薬を精製する必要があり,一般的に蒸留法を利用して液体状の有機試薬を精製し,それに対して結晶法や昇華法を利用して固体物質を精製する。蒸気圧の高い物質即ち精製の沸点が低く又は沸騰温度でも分解しない有機試薬に対して一般的に常圧蒸留法を利用して精製を行う;発揮しにくく又は水にわずかに溶解する物質即ち精製の沸点が高く又は沸騰温度で分解する有機試薬に対して減圧蒸留法や水蒸気蒸留法を利用して精製を行う。 蒸留法によって有機試薬を精製することは実験室でよく使用される精製方法である。常用の蒸留装置は一般的に蒸留器、凝縮器と収集器という三つの部分によって構成され,またその補助装置は加熱器、温度計、液体収集管、コーク等を含む。
Click on the specific product, view the latest prices of the products, information, serving information
Structure Chemical Name CAS MF
テトラキス(4′-カルボキシ-4-ビフェニリル)エテン テトラキス(4′-カルボキシ-4-ビフェニリル)エテン 1610858-96-2 C54H36O8
1-(4-cyclopropylpyridin-2-yl)thiourea 1-(4-cyclopropylpyridin-2-yl)thiourea 2256709-20-1 C9H11N3S
カルビオリン カルビオリン 478-35-3 C16H12O6
3-(Piperidin-3-yl)-5-cyanophenylboronic acid 3-(Piperidin-3-yl)-5-cyanophenylboronic acid 2225152-54-3 C12H15BN2O2
3-Pyridinecarboxylic acid, 2-methylpropyl ester 3-Pyridinecarboxylic acid, 2-methylpropyl ester 31678-58-7 C10H13NO2
(7S,13E,16S,18R,19E,21R)-21-アセチルオキシ-7,18-ジヒドロキシ-16,18-ジメチル-10-フェニル[11]シトカラサ-5,13,19-トリエン-1-オン (7S,13E,16S,18R,19E,21R)-21-アセチルオキシ-7,18-ジヒドロキシ-16,18-ジメチル-10-フェニル[11]シトカラサ-5,13,19-トリエン-1-オン 108050-28-8 C30H39NO5
(5-(1H-imidazol-2-yl)pyridin-3-yl)boronic acid (5-(1H-imidazol-2-yl)pyridin-3-yl)boronic acid 2256747-82-5 C8H8BN3O2
[3-(1H-IMIDAZOL-2-YL)PHENYL]-BORONIC ACID [3-(1H-IMIDAZOL-2-YL)PHENYL]-BORONIC ACID 909120-16-7 C9H9BN2O2
Hexanediamide,N1,N6-di-(9Z)-9-octadecen-1-yl- Hexanediamide,N1,N6-di-(9Z)-9-octadecen-1-yl- 85888-37-5 C42H80N2O2
4-Cyano-2-(ethyl-d5)-phenylboronic acid 4-Cyano-2-(ethyl-d5)-phenylboronic acid 2225172-70-1 C9H10BNO2
(2-(4,4-Difluoropiperidin-1-yl)pyriMidin-5-yl)boronic acid (2-(4,4-Difluoropiperidin-1-yl)pyriMidin-5-yl)boronic acid 1820966-51-5 C9H12BF2N3O2
5-(4-Methylimidazol-1-yl)pyridine-3-boronic acid pinacol ester 5-(4-Methylimidazol-1-yl)pyridine-3-boronic acid pinacol ester 1351113-12-6 C15H20BN3O2
5-Bromo-2-methylthiazole-4-boronic acid pinacol ester 5-Bromo-2-methylthiazole-4-boronic acid pinacol ester 1402174-22-4 C10H15BBrNO2S
Boronic acid, B-[3-(5-pyrimidinyl)phenyl]- Boronic acid, B-[3-(5-pyrimidinyl)phenyl]- 2225172-25-6 C10H9BN2O2
4-CYANOTHIOPHEN-2-BORONIC ACID PINACOL ESTER 4-CYANOTHIOPHEN-2-BORONIC ACID PINACOL ESTER 916454-59-6 C11H14BNO2S
Dicyclohexyl-t-butylphosphonium tetrafluoroborate Dicyclohexyl-t-butylphosphonium tetrafluoroborate 1220349-00-7 C16H32BF4P
(2-(sec-butyl)-6-hydroxypyridin-4-yl)boronic acid (2-(sec-butyl)-6-hydroxypyridin-4-yl)boronic acid 2256747-24-5 C9H14BNO3
(2,6-bis(methyl-d3)phenyl-3,4,5-d3)boronic acid (2,6-bis(methyl-d3)phenyl-3,4,5-d3)boronic acid 2819702-14-0 C8H11BO2
2,5-DIFLUOROPYRIDINE-4-BORONIC ACID, PINACOL ESTSER 2,5-DIFLUOROPYRIDINE-4-BORONIC ACID, PINACOL ESTSER 1622217-35-9 C11H14BF2NO2
テレフタル酸ビス(4-アミノフェニル) テレフタル酸ビス(4-アミノフェニル) 16926-73-1 C20H16N2O4
(4-(morpholino-d8)phenyl-2,3,5,6-d4)boronic acid (4-(morpholino-d8)phenyl-2,3,5,6-d4)boronic acid 2368221-28-5 C10H2BD12NO3
5-PHENYL-3-PYRIDINYL BORONIC ACID 5-PHENYL-3-PYRIDINYL BORONIC ACID 850991-38-7 C11H10BNO2
2-Ethoxy-5-(ethyl-d5)-phenylboronic acid 2-Ethoxy-5-(ethyl-d5)-phenylboronic acid 2225180-26-5 C10H15BO3
METHYL PYRIDINE-2-BORONIC ACID PINACOL ESTER-5-CARBOXYLATE METHYL PYRIDINE-2-BORONIC ACID PINACOL ESTER-5-CARBOXYLATE 1310384-84-9 C13H18BNO4
1-ブロモ-4-n-オクチルベンゼン 1-ブロモ-4-n-オクチルベンゼン 51554-93-9 C14H21Br
ジメチルジオクタデシルアンモニウムヨージド ジメチルジオクタデシルアンモニウムヨージド 7206-39-5 C38H80IN
4-クロロフタル酸無水物 4-クロロフタル酸無水物 118-45-6 C8H3ClO3
3-(6-Fluoropyridin-2-yl)phenylboronic acid 3-(6-Fluoropyridin-2-yl)phenylboronic acid 2225175-43-7 C11H9BFNO2
4-Cyclopropyl-2-(1H-pyrazol-1-yl)phenylboronic acid 4-Cyclopropyl-2-(1H-pyrazol-1-yl)phenylboronic acid 2225176-95-2 C12H13BN2O2
(3-chloro-5-cyclopropylphenyl)boronic acid (3-chloro-5-cyclopropylphenyl)boronic acid 2225170-80-7 C9H10BClO2
methyl 4-cyano-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)benzoate methyl 4-cyano-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)benzoate 2819707-86-1 C16H17BF3NO4
L-Isoleucine, N-[N-[N-[(4-Methylphenylsulfonyl]-S-(phenylMethyl)-L-cysteinyl]-L-tyrosyl]-, hydrazide (9CI) L-Isoleucine, N-[N-[N-[(4-Methylphenylsulfonyl]-S-(phenylMethyl)-L-cysteinyl]-L-tyrosyl]-, hydrazide (9CI) 39570-96-2 C32H41N5O6S2
(4-ethoxy-3-(methyl-d3)phenyl)boronic acid (4-ethoxy-3-(methyl-d3)phenyl)boronic acid 2241871-41-8 C9H13BO3
(3-aminophenyl-2,4,5,6-d4)boronic acid (3-aminophenyl-2,4,5,6-d4)boronic acid 2241870-75-5 C6H8BNO2
2-Chloro-3-cyclopropyl-5-cyanophenylboronic acid pinacol ester 2-Chloro-3-cyclopropyl-5-cyanophenylboronic acid pinacol ester 2223037-57-6 C16H19BClNO2
1,3-Dioxane, 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 1,3-Dioxane, 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 2241872-36-4 C10H19BO4
5-(3-Thienyl)furan-2-boronic acid pinacol ester 5-(3-Thienyl)furan-2-boronic acid pinacol ester 2223035-28-5 C14H17BO3S
2-(4-bromo-5-cyclopropyl-2-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2-(4-bromo-5-cyclopropyl-2-(trifluoromethyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 2819708-55-7 C16H19BBrF3O2
2-Bromo-4-(piperazin-1-yl)phenylboronic acid 2-Bromo-4-(piperazin-1-yl)phenylboronic acid 2225178-26-5 C10H14BBrN2O2
(3-cyclopropyl-5-fluorophenyl)boronic acid (3-cyclopropyl-5-fluorophenyl)boronic acid 2225181-55-3 C9H10BFO2
Boronic acid, B-[2-(4-pyridinyl)phenyl]- Boronic acid, B-[2-(4-pyridinyl)phenyl]- 1384826-85-0 C11H10BNO2
1-(Cyclohexyl)-1H-pyrazole-4-boronic acid 1-(Cyclohexyl)-1H-pyrazole-4-boronic acid 2225155-52-0 C9H15BN2O2
6-ブロモ-1H-インダゾール-4-カルボン酸メチル 6-ブロモ-1H-インダゾール-4-カルボン酸メチル 885518-49-0 C9H7BrN2O2
2-Chloro-3-methyl-5-cyclopropylphenylboronic acid pinacol ester 2-Chloro-3-methyl-5-cyclopropylphenylboronic acid pinacol ester 2223055-28-3 C16H22BClO2
ぎ酸ナトリウム (13C, 99%) ぎ酸ナトリウム (13C, 99%) 23102-86-5 CHNaO2
3-(Piperidin-3-yl)-5-methylphenylboronic acid 3-(Piperidin-3-yl)-5-methylphenylboronic acid 2225153-34-2 C12H18BNO2
tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)pyrrolidine-1-carboxylate tert-butyl 3-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)pyrrolidine-1-carboxylate 2068065-27-8 C20H31BN2O4
2-メチル-6-(4,4,5,5-テトラメチル-1,3,2-ジオキサボロラン-2-イル)イソニコチン酸メチル 2-メチル-6-(4,4,5,5-テトラメチル-1,3,2-ジオキサボロラン-2-イル)イソニコチン酸メチル 1309982-35-1 C14H20BNO4
4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)benzonitrile 4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5-(trifluoromethyl)benzonitrile 1126479-88-6 C15H17BF3NO2
6-(1H-PYRIDIN-2-ONE)PYRIDINE-3-BORONIC ACID PINACOL ESTER 6-(1H-PYRIDIN-2-ONE)PYRIDINE-3-BORONIC ACID PINACOL ESTER 1353879-66-9 C16H19BN2O3
4-[4-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-PHENYL]-THIOMORPHOLINE 1,1-DIOXIDEC 4-[4-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-PHENYL]-THIOMORPHOLINE 1,1-DIOXIDEC 1093878-43-3 C16H24BNO4S
5-(n-Propyl)-2-dimethylaminothiazole-4-boronic acid pinacol ester 5-(n-Propyl)-2-dimethylaminothiazole-4-boronic acid pinacol ester 2223042-80-4 C14H25BN2O2S
3,5-Dimethyl-1H-pyrrole-2-boronic acid pinacol ester 3,5-Dimethyl-1H-pyrrole-2-boronic acid pinacol ester 2223032-92-4 C12H20BNO2
2-Methoxy-4-(N-methylpiperazin-1-yl)phenylboronic acid pinacol ester 2-Methoxy-4-(N-methylpiperazin-1-yl)phenylboronic acid pinacol ester 1621519-58-1 C18H29BN2O3
3,5-Bis(pyrrolidino)phenylboronic acid 3,5-Bis(pyrrolidino)phenylboronic acid 2225170-56-7 C14H21BN2O2
2-Fluoro-4-(pyrrolidino)phenylboronic acid pinacol ester 2-Fluoro-4-(pyrrolidino)phenylboronic acid pinacol ester 2223033-26-7 C16H23BFNO2
2-Methyl-5-(n-propyl)thiophene-3-boronic acid pinacol ester 2-Methyl-5-(n-propyl)thiophene-3-boronic acid pinacol ester 2223031-62-5 C14H23BO2S
1,4-Dioxane, 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 1,4-Dioxane, 2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 1703747-29-8 C10H19BO4
5-O-methylembelin 5-O-methylembelin 56005-10-8 C18H28O4
2-phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-Thiazole 2-phenyl-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-Thiazole 1225053-32-6 C15H18BNO2S
[2-Methoxy-4-(iso-propyl)-d10]-thiazole-5-boronic acid pinacol ester [2-Methoxy-4-(iso-propyl)-d10]-thiazole-5-boronic acid pinacol ester 2223044-28-6 C13H22BNO3S
3-Amino-4-(ethyl-d5)-phenylboronic acid 3-Amino-4-(ethyl-d5)-phenylboronic acid 2225172-59-6 C8H12BNO2
2-Fluoro-4-(thiazol-5-yl)phenylboronic acid 2-Fluoro-4-(thiazol-5-yl)phenylboronic acid 2225169-31-1 C9H7BFNO2S
3-Fluoro-4-(3-methyl-1H-pyrazol-1-yl)phenylboronic acid pinacol ester 3-Fluoro-4-(3-methyl-1H-pyrazol-1-yl)phenylboronic acid pinacol ester 2223031-07-8 C16H20BFN2O2
Methyl 5-methyl-4-furancarboxylate-2-boronic acid pinacol ester Methyl 5-methyl-4-furancarboxylate-2-boronic acid pinacol ester 1025719-05-4 C13H19BO5
1H-Pyrrole, 4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 1H-Pyrrole, 4-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 2758810-70-5 C11H18BNO2
2-Methyl-3-chloro-5-cyclopropylphenylboronic acid pinacol ester 2-Methyl-3-chloro-5-cyclopropylphenylboronic acid pinacol ester 2223037-35-0 C16H22BClO2
ベナスタチンD ベナスタチンD 150151-89-6 C29H30O5
2,4-(Diethyl)thiazole-5-boronic acid pinacol ester 2,4-(Diethyl)thiazole-5-boronic acid pinacol ester 2223011-44-5 C13H22BNO2S
(5-CHLORO-4-METHYLPYRIDIN-3-YL)BORONIC ACID (5-CHLORO-4-METHYLPYRIDIN-3-YL)BORONIC ACID 2225172-97-2 C6H7BClNO2
2-chloro-4-methoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile 2-chloro-4-methoxy-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile 2819708-19-3 C14H17BClNO3
9, 9-Bis[3-phenyl-4-(2-hydroxyethoxy)phenyl]fluorene 9, 9-Bis[3-phenyl-4-(2-hydroxyethoxy)phenyl]fluorene 156326-38-4 C41H34O4
3-Trifluoromethyl-5-(cyclobutyl)phenylboronic acid 3-Trifluoromethyl-5-(cyclobutyl)phenylboronic acid 2225169-62-8 C11H12BF3O2
2-hydroxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isonicotinonitrile 2-hydroxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isonicotinonitrile 2256755-29-8 C12H15BN2O3
3-Chloro-4,6-dimethylphenylboronic acid 3-Chloro-4,6-dimethylphenylboronic acid 854662-82-1 C8H10BClO2
(4-methoxythiazol-5-yl)boronic acid (4-methoxythiazol-5-yl)boronic acid 2819705-88-7 C4H6BNO3S
4-(Naphthalen-2-yl(phenyl)amino)phenylboronic acid 4-(Naphthalen-2-yl(phenyl)amino)phenylboronic acid 847755-81-1 C22H18BNO2
2,5-Dimethoxy-4-methylphenylboronic acid 2,5-Dimethoxy-4-methylphenylboronic acid 956429-07-5 C9H13BO4
3-(1H-pyrrol-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile 3-(1H-pyrrol-1-yl)-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzonitrile 2223032-17-3 C17H19BN2O2
1-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)phenyl]... 1-[4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-(trifluoromethyl)phenyl]... 1373522-74-7 C18H25BF3NO2
2-[(sec-Butyl)thiophene-d11]-3-boronic acid pinacol ester 2-[(sec-Butyl)thiophene-d11]-3-boronic acid pinacol ester 2223009-12-7 C14H23BO2S
3-Chloro-5-bromo-6-methylphenylboronic acid 3-Chloro-5-bromo-6-methylphenylboronic acid 2225155-54-2 C7H7BBrClO2
1,4-ジブロモオクタフルオロブタン 1,4-ジブロモオクタフルオロブタン 335-48-8 C4Br2F8
4-Chloro-3-methoxy-6-cyclopropylphenylboronic acid 4-Chloro-3-methoxy-6-cyclopropylphenylboronic acid 2225155-83-7 C10H12BClO3
4-(Morpholino)thiophene-2-boronic acid 4-(Morpholino)thiophene-2-boronic acid 2225180-31-2 C8H12BNO3S
Boronic acid, B-[3-(2-methoxyethoxy)-4-pyridinyl]- Boronic acid, B-[3-(2-methoxyethoxy)-4-pyridinyl]- 2710293-22-2 C8H12BNO4
(2,2',3,3',4',5,5',6,6'-d9-[1,1'-Biphenyl]-4-yl)boronic Acid (2,2',3,3',4',5,5',6,6'-d9-[1,1'-Biphenyl]-4-yl)boronic Acid 1489259-11-1 C12H11BO2
6-トリフルオロメチル-2-クロロピリジン-4-ボロン酸 6-トリフルオロメチル-2-クロロピリジン-4-ボロン酸 1446486-10-7 C6H4BClF3NO2
2-Cyano-6-cyclopropylphenylboronic acid pinacol ester 2-Cyano-6-cyclopropylphenylboronic acid pinacol ester 2223053-37-8 C16H20BNO2
5-(トリフルオロメチル)ピリジン-3-イルボロン酸 5-(トリフルオロメチル)ピリジン-3-イルボロン酸 947533-51-9 C6H5BF3NO2
(4-methoxy-3-(methyl-d3)phenyl)boronic acid (4-methoxy-3-(methyl-d3)phenyl)boronic acid 2241871-32-7 C8H11BO3
(3-cyclopropyl-5-methoxyphenyl)boronic acid (3-cyclopropyl-5-methoxyphenyl)boronic acid 1787258-63-2 C10H13BO3
ベンジルトリエチルアンモニウムボロヒドリド ベンジルトリエチルアンモニウムボロヒドリド 85874-45-9 C13H26BN
tert-butyl 3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)phenyl)azetidine-1-carboxylate tert-butyl 3-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4-(trifluoromethyl)phenyl)azetidine-1-carboxylate 2223046-55-5 C21H29BF3NO4
3-Trifluoromethyl-4-(4-methylimidazol-1-yl)phenylboronic acid pinacol ester 3-Trifluoromethyl-4-(4-methylimidazol-1-yl)phenylboronic acid pinacol ester 2223042-43-9 C17H20BF3N2O2
2,5-ジオキサヘキサンニ酸 ジエチル 2,5-ジオキサヘキサンニ酸 ジエチル 35466-87-6 C8H14O6
4-(Diethylamino)thiophene-2-boronic acid 4-(Diethylamino)thiophene-2-boronic acid 2225173-05-5 C8H14BNO2S
(2-(2-hydroxypropan-2-yl)pyrimidin-5-yl)boronic acid (2-(2-hydroxypropan-2-yl)pyrimidin-5-yl)boronic acid 1598437-05-8 C7H11BN2O3
N-(2-ヒドロキシエチル)-10-ウンデセンアミド N-(2-ヒドロキシエチル)-10-ウンデセンアミド 20545-92-0 C13H25NO2
2,5-ジフルオロピリジン-3-ボロン酸ピナコールエステル 2,5-ジフルオロピリジン-3-ボロン酸ピナコールエステル 1256358-86-7 C11H14BF2NO2
ホームページ | メンバー | 広告掲載 | お問い合わせ
Copyright © 2016 ChemicalBook All rights reserved.