天堂VA视频一区二区_色卡网站PROC免费_国产真实乱了露脸在线观看_变态拳头交视频一区二区_国产精品无码A∨精品影院APP_亚洲国产精品无码久久_成年无码AV片在线_亚洲欧美综合国产不卡

<source id="uksg4"></source>

搜索購物車會員中心

保護基是指當多功能基有機化合物進行反應時，為使反應只發(fā)生在所希望的基團處，而避免其他基團遭受影響，此反應前將其他基團先加以保護，當反應完成后再恢復。能保護某種基團的試劑稱為該基團的保護基。

默認常備現(xiàn)貨
純度
- 請選擇
- 99+%
- 99%
- 98+%
- 98%
- 97+%
- 97%
- 96+%
- 96%
- 95+%
- 95%
- 93%
- 90+%
- 90%
規(guī)格
- 請選擇
- 1mg
- 2mg
- 5mg
- 10mg
- 25mg
- 50mg
- 100mg
- 250mg
- 1g
- 5g
- 10g
- 25g
- 100g
- 500g
- 1000g
- 1kg

清空選項

4-Nitrobenzene-1-sulfonyl fluoride: BD99442349-96-297%; ￥46.001g常備現(xiàn)貨

N-(2-Bromobenzyloxycarbonyloxy)succinimide: BD17948128611-93-898%; ￥65.0025g常備現(xiàn)貨

tert-Butyl (2,5-dioxopyrrolidin-1-yl) carbonate: BD1800513139-12-398%; ￥168.0025g常備現(xiàn)貨

Triisopropylsilyl trifluoromethanesulfonate: BD15537780522-42-597% T; ￥77.0025g常備現(xiàn)貨

Bis(tert-butoxycarbonyl)oxide: BD3284024424-99-598%; ￥113.00500g常備現(xiàn)貨

2-Mesitylenesulfonyl chloride: BD6775773-64-895%; ￥117.00100g常備現(xiàn)貨

3,4-Dihydro-2H-pyran: BD27200110-87-297% GC; ￥53.0025g常備現(xiàn)貨

N-(9-Fluorenylmethoxycarbonyloxy)succinimide: BD901382911-69-198%; ￥79.00100g常備現(xiàn)貨

Ethane-1,2-diol: BD129702107-21-199%; ￥88.00500g常備現(xiàn)貨

(Chloro(4-methoxyphenyl)methylene)dibenzene: BD907214470-28-198%; ￥39.005g常備現(xiàn)貨

(Chloromethanetriyl)tribenzene: BD3488876-83-598%; ￥64.00100g常備現(xiàn)貨

4-Nitrophenyl chloroformate: BD011822677693-46-190%; ￥131.00100g常備現(xiàn)貨

2-Bromo-1-ethylpyridin-1-ium tetrafluoroborate: BD5037878-23-998%; ￥209.005g常備現(xiàn)貨

1-(Chloromethyl)-4-methoxybenzene: BD35022824-94-297% (stabilized with 5% K2CO3); ￥112.00100g常備現(xiàn)貨

2-Chlorobenzyl (2,5-dioxopyrrolidin-1-yl) carbonate: BD1374665853-65-897%; ￥46.005g常備現(xiàn)貨

N-(Benzyloxycarbonyloxy)succinimide: BD1384213139-17-897%; ￥253.00500g常備現(xiàn)貨

tert-Butyl (1,3-dioxo-3a,4,7,7a-tetrahydro-1H-4,7-methanoisoindol-2(3H)-yl) carbonate: BD23823064205-15-898%; ￥327.005g常備現(xiàn)貨

1,2-Bis(chlorodimethylsilyl)ethane: BD970913528-93-395% GC; ￥233.0025g常備現(xiàn)貨

Triphenylmethyl bromide: BD16986596-43-098%; ￥58.005g常備現(xiàn)貨

9-Fluorenemethanol: BD1961224324-17-298%; ￥776.001kg常備現(xiàn)貨

N-((tert-Butoxycarbonyl)oxy)benzimidoyl cyanide: BD1470958632-95-495%; ￥71.0010g常備現(xiàn)貨

Benzyl carbamate: BD116124621-84-198%; ￥84.00100g常備現(xiàn)貨

(9H-Fluoren-9-yl)methyl carbonochloridate: BD1999728920-43-698%; ￥49.0025g常備現(xiàn)貨

Chlorotriethylsilane: BD120966994-30-998%; ￥47.0025g常備現(xiàn)貨

N-(Allyloxycarbonyloxy)succinimide: BD288250135544-68-296%; ￥160.0025g常備現(xiàn)貨

tert-Butyldimethylsilyl trifluoromethanesulfonate: BD15314469739-34-098%; ￥951.00500g常備現(xiàn)貨

2-Bromo-1-(4-methoxyphenyl)ethanone: BD76602632-13-598%; ￥49.0010g常備現(xiàn)貨

N-(Cyclopentyloxycarbonyloxy)succinimide: BD31712128595-07-398%; ￥189.00100g

1

<noscript id="qs0i2"><tbody id="qs0i2"></tbody></noscript>