一二三四区视频,亚洲少妇熟女色,日本久热无码视频网,欧美国产日韩大尺度,亚洲a视频,久久少妇一区二区,日韩999无码视频,刺激久久久久久久,啊啊啊啊不要啊在线

2-Chloro-5-nitronicotinic acid

2-Chloro-5-nitronicotinic acid ??? ???
?? ??:
42959-38-6
???:
2-Chloro-5-nitronicotinic acid
???(??):
2-Chloro-5-nitronicotinicaci;2-Chloro-5-nitronicoinic acid;2-CHLORO-5-NITRONICOTINIC ACID;2-Chloro-5-nitropyridin-3-carboxylic acid;2-CHLORO-5-NITROPYRIDINE-3-CARBOXYLIC ACID;2-Chloro-5-nitro-3-pyridinecarboxylic acid;3-Pyridinecarboxylic acid, 2-chloro-5-nitro-;2-Chloro-5-nitropyridine-3-carboxylic acid, 3-Carboxy-2-chloro-5-nitropyridine
CBNumber:
CB8291477
???:
C6H3ClN2O4
??? ??:
202.55
MOL ??:
42959-38-6.mol

2-Chloro-5-nitronicotinic acid ??

???
140-143℃
?? ?
384.8±42.0 °C(Predicted)
??
1.702±0.06 g/cm3(Predicted)
?? ??
Store at room temperature
??? ??
??
??? ??
??? ??
?? ?? (pKa)
1.57±0.10(Predicted)
??
???? ?????
??
Moisture Sensitive
InChI
InChI=1S/C6H3ClN2O4/c7-5-4(6(10)11)1-3(2-8-5)9(12)13/h1-2H,(H,10,11)
InChIKey
WOFZRBCITDVRON-UHFFFAOYSA-N
SMILES
C1(Cl)=NC=C([N+]([O-])=O)C=C1C(O)=O
CAS ??????
42959-38-6(CAS DataBase Reference)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi,Xn
?? ???? ?? 22
?? ?? IRRITANT
HS ?? 2933399990
????(GHS): Exclamation Mark (GHS07)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H302 ??? ??? ?? ?? ?? - ?? ?? 4 ?? P264, P270, P301+P312, P330, P501
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? P264, P280, P305+P351+P338,P337+P313P
H335 ?? ???? ??? ? ?? ?? ???? ?? - 1? ??;???? ?? ?? 3 ??
??????:
P261 ??·?·??·???·??·...·????? ??? ????.
P304+P340 ???? ??? ??? ?? ??? ??? ???? ?? ??? ??? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P405 ???? ?????.
NFPA 704
0
2 0

2-Chloro-5-nitronicotinic acid C??? ??, ??, ??

Synthesis

2-Hydroxy-5-nitro-nicotinic acid (2.7 mmol) in a mixture of NJV- dimethylformamide (2.7 mmol) and thionyl chloride (5 ml) was heated at 80 0C for 1 h. The mixture was allowed to cool and concentrated in a vacuum. To the resulting residue, ice water (20 ml) was added, and with vigorous stirring, a precipitate formed. The precipitate was filtered off and dried in a vacuum oven to give a white solid 2-Chloro-5-nitronicotinic acid (68 percent).

2-Chloro-5-nitronicotinic acid ?? ?? ? ???

???

?? ??


2-Chloro-5-nitronicotinic acid ?? ??

???( 215)?? ??
??? ?? ??? ?? ?? ? ??
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29640 60
career henan chemical co
+86-0371-86658258 +8613203830695
sales@coreychem.com China 29815 58
Jinan Carbotang Biotech Co.,Ltd.
+8615866703830
figo.gao@foxmail.com China 8497 58
Shanghai Worldyang Chemical Co.,Ltd.
+86-021-56795779 +8613651600618
sales@worldyachem.com China 967 58
Alchem Pharmtech,Inc.
8485655694
sales@alchempharmtech.com United States 63687 58
Wuhan Chemwish Technology Co., Ltd
027-67849912
sales@chemwish.com CHINA 10821 58
CONIER CHEM AND PHARMA LIMITED
+8618523575427
sales@conier.com China 49979 58
QINGDAO KAIENSI INTERNATIONAL TRADE CO.,LTD.
+86-0532-8699-9256 +8615254267723
kaley@cnfdevelop.com China 1410 58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd
+8613580539051
joe@yuhengpharm.com CHINA 21142 58
Neostar United (Changzhou) Industrial Co., Ltd.
+86-0519-85551759 +8613506123987
marketing1@neostarunited.com China 8828 58

2-Chloro-5-nitronicotinic acid ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved
达州市| 铜陵市| 巴马| 三台县| 南溪县| 张家界市| 三明市| 香河县| 黄浦区| 永嘉县| 宁阳县| 定日县| 广汉市| 太谷县| 邯郸市| 铜川市| 河西区| 灵石县| 仙游县| 西宁市| 思茅市| 宝兴县| 隆回县| 潢川县| 丹巴县| 历史| 平罗县| 从江县| 金阳县| 英吉沙县| 日土县| 肥西县| 钦州市| 分宜县| 贡嘎县| 平果县| 利津县| 惠水县| 疏附县| 西乌珠穆沁旗| 黎川县|