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5-Fluorobarbituric acid

5-Fluorobarbituric acid 구조식 이미지

카스 번호:: 767-80-6

상품명:: 5-Fluorobarbituric acid

동의어(영문):: 5-Fluorobarbituric acid;5-FluoropyriMidine-2,4,6-triol;5-Fluoropyrimidine-2,4,6(1H,3H,5H)-trione;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-fluoro-;5-Fluoro-6-hydroxy-2,4(1H,3H)-pyrimidinedione;2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-fluoro- (9CI);2,4,6(1H,3H,5H)-Pyrimidinetrione, 5-fluoro- (9CI) ISO 9001：2015 REACH

CBNumber:: CB31081168

분자식:: C4H3FN2O3

포뮬러 무게:: 146.08

MOL 파일:: 767-80-6.mol

속성

안전

용도

공급 업체 41

5-Fluorobarbituric acid 속성

녹는점: 260℃ (dec.) (acetic acid )

밀도: 1.63±0.1 g/cm3 (20 ºC 760 Torr)

산도 계수 (pKa): 2.17±0.20(Predicted)

안전

5-Fluorobarbituric acid C화학적 특성, 용도, 생산

제조 방법

synthesis of 5-Fluorobarbituric acid: Urea (1.50 g, 25 mmol) was added to the solution of sodium (1.2 g, 53 mmol) in anhydrous ethanol (50 mL) and the mixture was heated to reflux. Diethyl 2-fluoromalonate (4.45 g, 25 mmol) was added dropwise over 10 minutes and the mixture was heated at reflux for 1h. After cooling to room temperature, the solution was filtered, the residue was washed with ethanol (20 mL), dissolved in water (30 mL) and acidified with HCl to pH 1. The precipitated product was recrystallized from the liquor to afford 5-fluorobarbituric acid (1.87 g, 51%) as a tan powder.
m.p.: >300 °C; ([M + H]+ , 147.0206, C4H4FN2O3 requires: [M]+ , 147.0204); IR (neat,cm-1 ) 2926, 2828, 1578, 1383, 1241, 1128; δF (D2O + NaOD, 376 MHz): -191.95 (s); δC (D2O + NaOD, 100 MHz) 131.89 (d, 1 JCF 214.4, C-F), 157.77 (d, 4 JCF 6.2, C-NH), 164.59 (d, 2 JCF 13.4, CvO); m/z (ASAP) 147 (25%, [M + H]+ ).18a

5-Fluorobarbituric acid 준비 용품 및 원자재

원자재

요소 프로로말론산디에틸에스테르 에틸알코올

준비 용품

2,4,6-TRICHLORO-5-FLUOROPYRIMIDINE

5-Fluorobarbituric acid 공급 업체

글로벌( 41)공급 업체

공급자	전화	이메일	국가	제품 수	이점
Accela ChemBio Inc.	(+1)-858-699-3322	info@accelachem.com	United States	19965	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22968	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63711	58
Career Henan Chemica Co	+86-0371-86658258 15093356674;	laboratory@coreychem.com	China	30255	58
Shaanxi Dideu Medichem Co. Ltd	+86-029-89586680 +86-18192503167	1026@dideu.com	China	9409	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	29322	58
Shanghai Acmec Biochemical Technology Co., Ltd.	+undefined18621343501	product@acmec-e.com	China	33349	58
Aladdin Scientific	+1-833-552-7181	sales@aladdinsci.com	United States	52927	58
Amadis Chemical Company Limited	571-89925085	sales@amadischem.com	China	131981	58
Shanghai Yolne Chemical Co., Ltd.	021-62960152	934678158@qq.com	China	9906	55

5-Fluorobarbituric acid 관련 검색:

Cyfluthrin