ChemicalBook >제품 카탈로그 >제약 중간체>헤테로 사이 클릭 화합물>피리딘 화합물>클로로 피리딘>2,3-Dibromo-5-chloropyridine

2,3-Dibromo-5-chloropyridine

2,3-Dibromo-5-chloropyridine 구조식 이미지

카스 번호:: 137628-17-2

상품명:: 2,3-Dibromo-5-chloropyridine

동의어(영문):: 2,3-Dibromo-5-chL;7-Bromopicolinic acid;Atogepant Impurity 25;3-Dibromo-5-chloropyridine;5-CHLORO-2,3-DIBROMOPYRIDINE;2,3 DIBROMO-5-CHLORO PYRIDINE;2,3-DIBROMO-5-DICHLOROPYRIDINE;Pyridine, 2,3-dibromo-5-chloro-;2,3-Dibromo-5-chloropyridine>2,3-Dibromo-5-chloropyridine 98%

CBNumber:: CB4843265

분자식:: C5H2Br2ClN

포뮬러 무게:: 271.34

MOL 파일:: 137628-17-2.mol

속성

안전

용도

공급 업체 268

2,3-Dibromo-5-chloropyridine 속성

녹는점: 41.0 to 45.0 °C

끓는 점: 259.9±35.0 °C(Predicted)

밀도: 2.136±0.06 g/cm3(Predicted)

저장 조건: Inert atmosphere,Room Temperature

용해도: 메탄올에 용해됨

물리적 상태: powder to crystal

산도 계수 (pKa): -3.85±0.20(Predicted)

색상: White to Light yellow to Light orange

InChI: InChI=1S/C5H2Br2ClN/c6-4-1-3(8)2-9-5(4)7/h1-2H

InChIKey: GDUFWKJMOOVEMX-UHFFFAOYSA-N

SMILES: C1(Br)=NC=C(Cl)C=C1Br

안전

위험 및 안전 성명
위험 및 사전주의 사항 (GHS)

위험품 표기	Xi,T
위험 카페고리 넘버	36/37/38-25
안전지침서	26-37-45
유엔번호(UN No.)	UN 2811 6.1 / PGIII
위험 등급	IRRITANT
HS 번호	2933399990

그림문자(GHS):

신호 어:

Danger

유해·위험 문구:

암호	유해·위험 문구	위험 등급	범주	신호 어	그림 문자	P- 코드
H301	삼키면 유독함	급성 독성 물질 - 경구	구분 3	위험		P264, P270, P301+P310, P321, P330,P405, P501

예방조치문구:

P301+P310

삼켰다면 즉시 의료기관(의사)의 진찰을 받으시오.

NFPA 704

	1
2		0

2,3-Dibromo-5-chloropyridine C화학적 특성, 용도, 생산

용도

2,3-Dibromo-5-chloropyridine has been used as a reactant for regiospecific Grignard reactions with lactones.

Synthesis

3-Bromo-5-chloropyridone (8.0 g, 38.4 mmole) was dissolved in dimethylformamide (60 ml) at ambient temperature. Phosphorus (V) tribromide oxide (16.5 g, 57.6 mmoles) was added and the reaction heated to 80° C for 72 hours. After cooling, the reaction was poured onto 800 g of ice. Vacuum filtration provided the product as a dark solid (6.85 g). Hexane (225 ml) and decolorizing carbon was added to the crude product and the contents heated to reflux and then filtered through celite. The clear colorless filtrate was stripped under vacuum to yield 2,3-Dibromo-5-chloropyridine as a white solid (5.3 g, 51%).

2,3-Dibromo-5-chloropyridine 준비 용품 및 원자재

원자재

준비 용품

5-chloro-2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine

2,3-Dibromo-5-chloropyridine 공급 업체

글로벌( 268)공급 업체

공급자	전화	이메일	국가	제품 수	이점
Henan Fengda Chemical Co., Ltd	+86-371-86557731 +86-13613820652	info@fdachem.com	China	20361	58
Capot Chemical Co.,Ltd.	571-85586718 +8613336195806	sales@capotchem.com	China	29798	60
Nanjing ChemLin Chemical Industry Co., Ltd.	025-83697070	product@chemlin.com.cn	CHINA	3012	60
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	32760	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29901	58
Jinan Carbotang Biotech Co.,Ltd.	+8615866703830	figo.gao@foxmail.com	China	7239	58
Nanjing Dolon Biotechnology Co.,Ltd.	18905173768	sales@dolonchem.com	CHINA	2972	58
Hubei Jusheng Technology Co.,Ltd.	18871490254	linda@hubeijusheng.com	CHINA	28180	58
Accela ChemBio Inc.	(+1)-858-699-3322	info@accelachem.com	United States	19965	58
Chongqing Chemdad Co., Ltd	+86-023-6139-8061 +86-86-13650506873	sales@chemdad.com	China	39916	58

2,3-Dibromo-5-chloropyridine 관련 검색:

5-BROMO-2-METHOXY-3-NITRO-PYRIDINE 3-Bromo-6-chloro-2-methylpyridine 3-BROMO-5-NITROPYRIDINE 3-BROMO-2,5-DICHLOROPYRIDINE 5-bromo-3-methylpicolinonitrile 2,5-Dibromo-3-nitropyridine 2,3-Dibromopyridine 2-Chloro-3-bromo-5-methylpyridine 6-BroMo-2-chloro-3-fluoropyridine 3-BROMO-5-CHLORO-2-METHOXY-PYRIDINE 3-BROMO-2-HYDROXY-5-METHYLPYRIDINE 2,3-Dibromo-5-chloropyridine 2-Bromo-5-chloropyridine 3-Bromo-5-chloropyridine 2-CHLORO-3,5-DIBROMOPYRIDINE 4-Amino-2-chloro-3,5-dibromopyridine 2-CHLORO-5,6-DIBROMOPYRIDINE 2-Chloro-3,6-dibromopyridine