成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

2-???????

2-???????
2-??????? ??? ???
?? ??:
445-29-4
???:
2-???????
???(??):
2-???????
???:
2-Fluorobenzoic acid
???(??):
OFBA;2-fluorobenzoate;O-FLUOROBENZOIC ACID;2-FLUOROBENZOHYDRAZIDE;ortho-Fluorobenzoic acid;NSC 10319;Adjacent acid;uorobenzoic acid;AKOS BBS-00003806;2-Fluorbenzoesure
CBNumber:
CB3705564
???:
C7H5FO2
??? ??:
140.11
MOL ??:
445-29-4.mol
MSDS ??:
SDS

2-??????? ??

???
122-125 °C (lit.)
?? ?
114 °C
??
1,46 g/cm3
?? ??
Sealed in dry,Room Temperature
???
7.2g/L
??? ??
??? ?? ?? ??
?? ?? (pKa)
3.27(at 25℃)
??
???? ?? ???
???
?? ?? ?????.
BRN
971265
InChI
InChI=1S/C7H5FO2/c8-6-4-2-1-3-5(6)7(9)10/h1-4H,(H,9,10)
InChIKey
NSTREUWFTAOOKS-UHFFFAOYSA-N
SMILES
C(O)(=O)C1=CC=CC=C1F
CAS ??????
445-29-4(CAS DataBase Reference)
NIST
Benzoic acid, 2-fluoro-(445-29-4)
EPA
Benzoic acid, 2-fluoro- (445-29-4)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xi
?? ???? ?? 37/38-36/37/38
????? 22-26-28-24/25-37/39-36
WGK ?? 3
RTECS ?? DH0250000
TSCA T
?? ?? IRRITANT
HS ?? 29163900
????(GHS): GHS hazard pictograms
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H315 ??? ??? ??? ????? ?? ????? ?? 2 ?? GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P302+P352 ??? ??? ??? ?? ????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P332+P313 ?? ??? ??? ???? ??· ??? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
0
2 0

2-??????? MSDS


2-Fluorobenzoic acid

2-??????? C??? ??, ??, ??

??? ??

white to light yellow crystal powder. soluble in organic solvents such as benzene, toluene, ketone and ether.The corresponding 2-fluorobenzoyl chloride can be obtained by reacting 2-fluorobenzoic acid with an acid chloride agent such as SOCl2, PCl3, etc.

??

2-Fluorobenzoic acid may be employed in the preparation of zaragozic acid A analogs. It is also used as an organic chemical synthesis intermediate.

??

2-Fluorobenzoic acid is an intermediate of the fungicide tritriazole and meclofenamic acid.

??

ChEBI: 2-fluorobenzoic acid is a 2-halobenzoic acid that is benzoic acid carrying a fluoro substituent at position 2. It is a fluorobenzoic acid and a 2-halobenzoic acid. It is a conjugate acid of a 2-fluorobenzoate.

?? ??

The preparation of 2-fluorobenzoic acid is based on anthranilic acid as raw material, adding anhydrous hydrogen fluoride and sodium nitrite in methoxyethyl methyl ether solvent for diazotization, refluxing for 3 hours, and post-processing to obtain the finished product.

Purification Methods

Crystallise the acid from 50% aqueous EtOH, dilute HCl or *C6H6, then purify it by zone melting or vacuum sublimation at 130-140o. [Beilstein 9 H 333. 9 III 1324, 9 IV 950.]

2-??????? ?? ?? ? ???

???

?? ??


2-??????? ?? ??

???( 516)?? ??
??? ?? ??? ?? ?? ? ??
Speranza Chemical Co., Ltd.
+86-86-075521030354 +8618688942810
sophieliu@speranzachem.com China 802 55
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8808 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5889 58
Wuhan Kemi-Works Chemical Co., Ltd.
+86-2785736489 +8618171418573
sales@kemiworks.com China 729 58
Henan Fengda Chemical Co., Ltd
+86-371-86557731 +86-13613820652
info@fdachem.com China 20284 58
Hebei Mojin Biotechnology Co.,Ltd
+86-15028179902
angelia@hbmojin.com China 1176 58
Hebei Zhuanglai Chemical Trading Co Ltd
+86-16264648883 +86-16264648883
niki@zlchemi.com China 2691 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29791 60
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886
info@dakenam.com China 18751 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21634 55

2-??????? ?? ??:

Copyright 2019 ? ChemicalBook. All rights reserved