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

ChemicalBook--->CAS DataBase List--->21739-92-4

21739-92-4

21739-92-4 Structure

21739-92-4 Structure
IdentificationMore
[Name]

5-Bromo-2-chlorobenzoic acid
[CAS]

21739-92-4
[Synonyms]

2-CHLORO-5-BROMOBENZOIC ACID
5-BROMO-2-CHLOROBENZOIC ACID
Benzoic acid, 5-bromo-2-chloro-
5-Bromo-2-chlorobenzoic acid, 98+%
5-Bromo-2-Chlorobenzoic Acid (BCBA)
[EINECS(EC#)]

244-558-5
[Molecular Formula]

C7H4BrClO2
[MDL Number]

MFCD00002415
[Molecular Weight]

235.46
[MOL File]

21739-92-4.mol
Chemical PropertiesBack Directory
[Appearance]

white to light yellow crystal powder
[Melting point ]

154-156 °C (lit.)
[Boiling point ]

324.5±27.0 °C(Predicted)
[density ]

1.7312 (rough estimate)
[refractive index ]

1.5590 (estimate)
[storage temp. ]

Sealed in dry,Room Temperature
[solubility ]

2.63g/l
[form ]

Solid
[pka]

2.49±0.25(Predicted)
[color ]

Off white colored powder
[Water Solubility ]

Soluble in water 2.63 g/L @20°C.
[BRN ]

2691432
[InChI]

InChI=1S/C7H4BrClO2/c8-4-1-2-6(9)5(3-4)7(10)11/h1-3H,(H,10,11)
[InChIKey]

FGERXQWKKIVFQG-UHFFFAOYSA-N
[SMILES]

C(O)(=O)C1=CC(Br)=CC=C1Cl
[CAS DataBase Reference]

21739-92-4(CAS DataBase Reference)
[NIST Chemistry Reference]

5-Bromo-2-chlorobenzoic acid(21739-92-4)
[EPA Substance Registry System]

Benzoic acid, 5-bromo-2-chloro- (21739-92-4)
Safety DataBack Directory
[Hazard Codes ]

Xi
[Risk Statements ]

R36/37/38:Irritating to eyes, respiratory system and skin .
[Safety Statements ]

S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S37/39:Wear suitable gloves and eye/face protection .
[WGK Germany ]

3
[Hazard Note ]

Irritant
[HazardClass ]

IRRITANT
[HS Code ]

29163900
Raw materials And Preparation ProductsBack Directory
[Preparation Products]

5'-BROMO-2'-CHLOROACETOPHENONE-->5-BROMO-2-CHLORO-BENZOYL CHLORIDE-->Bexagliflozin-->ETHYL 5-BROMO-2-CHLOROBENZOATE-->4-(5-broMo-2-chlorobenzyl)phenol-->2-(5-Bromo-2-chloro-phenyl)-1H-benzoimidazole-->(5-bromo-2-chlorophenyl)(4-fluorophenyl)methanone-->5-Bromo-2-chloro-N-cyclopropylbenzamide-->[1,1'-Biphenyl]-3-carboxylic acid, 4-chloro-3'-fluoro--->2,5-Bis(2,2,2-trifluoroethoxy)benzoic acid-->(2S,3R,4R,5S,6R)-2-(4-chloro-3-((4-ethoxyphenyl)(methoxy) methyl)phenyl)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol-->(5-bromo-2-chlorophenyl)(4-ethoxyphenyl)methanone
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

5-Bromo-2-chlorobenzoic acid (21739-92-4).msds
Hazard InformationBack Directory
[Description]

5-Bromo-2-chlorobenzoic acid (BCBA) is an organic reagent that can be used in electroinduced dehalogenation reactions. Ag/Cu electrodes exhibit high electrocatalytic activity in the dehalogenation reaction of BCBA. The process is characterised by a sequence of halide excretion and hydrogen addition. Since the bond dissociation energy value of C-Br bond is smaller than that of C-Cl bond, Br-w is more easily released from the benzene ring. As C-Br breaks, BCBA gains electrons and hydrogen to form the intermediate 2-chlorobenzoate. C-Cl then breaks in the same way to give the final product benzoate.
5-Bromo-2-chlorobenzoic acid
[Chemical Properties]

white to light yellow crystal powder
[Uses]

5-Bromo-2-chlorobenzoic acid was used to evaluate the homogeneity of organic powder. It can be used to produce 2-chloro-5-deuteriobenzoic acid.
[Synthesis]

4.7g (0.03 mol) of 2-chlorobenzoic acid, 40mL of concentrated sulfuric acid and 0.936g (0.012 mol) of sodium sulfide are sequentially added into a 250mL four-mouth bottle, stirred for 20 minutes at 30 ℃ until the solution is clear, then 5.334g N-bromosuccinimide (0.03 mol) is added, the reaction is continued for 10 minutes at 30 ℃, and then the solution is slowly poured into 80mL ice water bath for crystallization to obtain a crude product of the 5-bromo-2-chlorobenzoic acid. Add the filter cake into a 250mL four-mouth bottle, add 24mL methanol and 36mL water, heat to 60 ℃, naturally cool, and stir for crystallization. Filtration, washing with 20mL of 40% volume fraction aqueous methanol, and drying at 55 ℃ for 6 hours gave 6.001g of a white solid, yield: 85.0%.
[References]

[1] Fen Wang . “The Electroreductive Dehalogenation Reaction of 5-Bromo-2-chlorobenzoic Acid on Dendritic Ag/Cu.” International Journal of Electrochemical Science 10 6 (2015): Pages 5101-5111.
Spectrum DetailBack Directory
[Spectrum Detail]

5-Bromo-2-chlorobenzoic acid(21739-92-4)MS
5-Bromo-2-chlorobenzoic acid(21739-92-4)1HNMR
5-Bromo-2-chlorobenzoic acid(21739-92-4)13CNMR
5-Bromo-2-chlorobenzoic acid(21739-92-4)IR1
5-Bromo-2-chlorobenzoic acid(21739-92-4)IR2
5-Bromo-2-chlorobenzoic acid(21739-92-4)Raman
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

5-Bromo-2-chlorobenzoic acid, 98+%(21739-92-4)
[Sigma Aldrich]

21739-92-4(sigmaaldrich)
[TCI AMERICA]

5-Bromo-2-chlorobenzoic Acid,>97.0%(GC)(T)(21739-92-4)
21739-92-4 suppliers list
Company Name: Suzhou Nordica Biopharma CO.,LTD
Tel: +86-18136148818 +86-18567353071 , +86-18567353071
Website: www.nordicabio.com
Company Name: Hebei Weibang Biotechnology Co., Ltd
Tel: +8615531157085 , +8615531157085
Website: www.weibangbio.com/
Company Name: Hebei Mujin Biotechnology Co.,Ltd
Tel: +86 13288715578 +8613288715578 , +8613288715578
Website: http://www.mojinchemical.com
Company Name: Hebei Yanxi Chemical Co., Ltd.
Tel: +8617531153977 , +8617531153977
Website: www.is0513.com/manufacturer/hebei-yanxi-chemical-283/
Company Name: Hebei Chuanghai Biotechnology Co,.LTD
Tel: +86-13131129325 , +86-13131129325
Website: www.chuanghaibio.com
Company Name: Changzhou Rokechem Technology Co., Ltd.
Tel: 18758118018 , 18758118018
Website: www.rokechem.com
Company Name: Hebei Weibang Biotechnology Co., Ltd
Tel: +8617732866630 , +8617732866630
Website: www.weibangbio.com
Company Name: Henan Bao Enluo International TradeCo.,LTD
Tel: +86-17331933971 +86-17331933971 , +86-17331933971
Website: baoenluo.guidechem.com/
Company Name: Henan Fengda Chemical Co., Ltd
Tel: +86-371-86557731 +86-13613820652 , +86-13613820652
Website: http://www.fdachem.com
Company Name: hebei hongtan Biotechnology Co., Ltd
Tel: +86-86-1913198-3935 +8617331935328 , +8617331935328
Website: hbht123.com
Company Name: Hebei Zhuanglai Chemical Trading Co Ltd
Tel: +86-16264648883 +86-16264648883 , +86-16264648883
Website: www.hbzlchemi.com/
Company Name: Capot Chemical Co.,Ltd.
Tel: +86-(0)57185586718 +86-13336195806 , +86-13336195806
Website: www.capot.com
Company Name: Shanghai Daken Advanced Materials Co.,Ltd
Tel: +86-371-66670886
Website: https://www.dakenchem.com/
Company Name: Beijing Cooperate Pharmaceutical Co.,Ltd
Tel: 010-60279497
Website: http://www.cooperate-pharm.com
Company Name: Henan Tianfu Chemical Co.,Ltd.
Tel: +86-0371-55170693 +86-19937530512 , +86-19937530512
Website: https://www.tianfuchem.com/
Company Name: Hangzhou FandaChem Co.,Ltd.
Tel: +8615858145714 , +8615858145714
Website: www.fandachem.com/
Company Name: Fluoropharm Co., Ltd.
Tel: +86-0571-85586753; +8613336034509 , +8613336034509
Website: http://www.fluoropharm.com
Company Name: ATK CHEMICAL COMPANY LIMITED
Tel: +undefined-21-51877795
Website: www.atkchemical.com
Tags:21739-92-4 Related Product Information
74-11-3 118-91-2 302-79-4 120-51-4 6232-88-8 937-14-4 65-85-0 4487-59-6 1642-81-5 223463-13-6 146328-85-0 5350-93-6 33252-28-7 31301-51-6 132606-40-7 53939-30-3 22280-60-0 41288-96-4

This site uses cookies
This website uses cookies and similar technologies to store and retrieve information about your use of this website. This information helps us to provide, analyse and improve our services, which may include personalised content or advertising. We may share this information with Google and other third parties. This cookies are necessary for our website to work properly . By clicking "Continue" or continuing to browse our site you are agreeing to our and our partners use of cookies.
Accept