< 生产厂家 价格 >

2,4-二硝基氟苯

2,4-二硝基氟苯用途

【用途一】
用作医药、农药、染料中间体
【用途二】
本品可制成2,4-二氯氟苯,后者是合成环丙沙星、培氟沙星、二氟沙星等喹喏酮类抗菌药的起始原料。本品也是一种重要的分析试剂,用来鉴定有机化合物中的氨基,尤其是用于检定肽及蛋白质末端氨基酸的氨基。检定时,2,4-二硝基氟苯与肽链的游离氨基作用,生成2,4-二硝基衍生物。将其水解后,末端氨基酸的N-(2,4-二硝基苯基)衍生物常为亮黄色结晶,易与其他氨基酸分离。用该方法结合其他方法,可确定蛋白质或多肽氨基端碳链的结构,称桑格法。本品也用于测定酚和咖啡,以及醛糖分析。
点击显示

2,4-二硝基氟苯名称

[ CAS 号 ]:
70-34-8

[ 中文名 ]:
2,4-二硝基氟苯

[ 英文名 ]:
1-Fluoro-2,4-dinitrobenzene

[中文别名 ]:

[英文别名 ]:

2,4-二硝基氟苯物理化学性质

[ 密度 ]:
1.6±0.1 g/cm3

[ 沸点 ]:
296.0±20.0 °C at 760 mmHg

[ 熔点 ]:
25-27 °C(lit.)

[ 分子式 ]:
C6H3FN2O4

[ 分子量 ]:
186.097

[ 闪点 ]:
132.8±21.8 °C

[ 精确质量 ]:
186.007690

[ PSA ]:
91.64000

[ LogP ]:
1.16

[ 外观性状 ]:
黄色晶体

[ 蒸汽压 ]:
0.0±0.6 mmHg at 25°C

[ 折射率 ]:
1.585

[ 储存条件 ]:
库房通风低温干燥,与还原剂、食品添加剂分开存放

[ 稳定性 ]:
Stable. Combustible. Incompatible with strong oxidizing agents, strong bases.

[ 水溶解性 ]:
400 mg/L (25 ºC)

2,4-二硝基氟苯MSDS

2,4-二硝基氟苯毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
CZ7800000
CHEMICAL NAME :
Benzene, 2,4-dinitro-1-fluoro-
CAS REGISTRY NUMBER :
70-34-8
BEILSTEIN REFERENCE NO. :
0398632
LAST UPDATED :
199710
DATA ITEMS CITED :
14
MOLECULAR FORMULA :
C6-H3-F-N2-O4
MOLECULAR WEIGHT :
186.11
WISWESSER LINE NOTATION :
WNR BF ENW

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
50 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
100 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :
Morphological transformation
TEST SYSTEM :
Rodent - hamster Kidney
DOSE/DURATION :
80 ug/L
REFERENCE :
BJCAAI British Journal of Cancer. (Macmillan Press Ltd., Houndmills, Basingstoke, Hants. RG21 2XS, UK) V.1- 1947- Volume(issue)/page/year: 37,873,1978 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5163 No. of Facilities: 7 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 28 (estimated)
点击显示

2,4-二硝基氟苯安全信息

[ 符号 ]:

GHS07, GHS08

[ 信号词 ]:
Warning

[ 危害声明 ]:
H302-H315-H317-H319-H335-H373

[ 警示性声明 ]:
P261-P280-P305 + P351 + P338

[ 个人防护装备 ]:
dust mask type N95 (US);Eyeshields;Faceshields;Gloves

[ 危害码 (欧洲) ]:
C:Corrosive

[ 风险声明 (欧洲) ]:
R22;R23/24/25;R33;R34;R40;R42/43

[ 安全声明 (欧洲) ]:
S22-S26-S36/37/39-S45-S28A

[ 危险品运输编码 ]:
UN 3261 8/PG 2

[ WGK德国 ]:
3

[ RTECS号 ]:
CZ7800000

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

[ 海关编码 ]:
29049085

2,4-二硝基氟苯合成路线

2,4-二硝基氟苯上下游产品

2,4-二硝基氟苯制备

1.以2,4-二硝基氯苯与无水氟化钾为原料,经亲核取代反应而得。

2.将无水氟化钾,二甲基亚砜和适量阻聚剂混合,控料加热至120℃,然后加入2,4-二硝基氯苯 [ 各反应物的配比为2,4-二硝基氯苯∶无水氟化钾∶二甲基亚砜∶阻聚剂=1.0∶1.8∶ 3.4∶0.1( 摩尔比)]。维持反应温度在110~120℃( 严格控制反应温度,以防爆炸) ,反应3h:

反应结束后迅速冷却至室温。抽滤除去氟化钾残渣,滤液中加水洗涤,静置后分去水层(可回收二甲基亚砜),油层由水洗涤2次,于2.73kPa下减压蒸馏,收集176~180℃馏分,即为成品2,4-二硝基氟苯。

点击显示

2,4-二硝基氟苯海关

[ 海关编码 ]: 2904909090

[ 中文概述 ]:
2904909090 其他烃的磺化、硝化、亚硝化衍生物(不论是否卤化). 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:5.5% 普通关税:30.0%

[ 申报要素 ]: 品名, 成分含量, 用途

[ Summary ]:
HS:2904909090 sulphonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

2,4-二硝基氟苯文献

DOCK8 regulates lymphocyte shape integrity for skin antiviral immunity.

J. Exp. Med. 211(13) , 2549-66, (2014)

DOCK8 mutations result in an inherited combined immunodeficiency characterized by increased susceptibility to skin and other infections. We show that when DOCK8-deficient T and NK cells migrate throug...

Natural killer T cells are essential for the development of contact hypersensitivity in BALB/c mice.

J. Invest. Dermatol. 134(11) , 2709-18, (2014)

Contact hypersensitivity (CHS) has been widely used to study cutaneous immune responses, as a prototype of delayed-type hypersensitivity. Although natural killer T (NKT) cells have been assumed to hav...

Depletion of regulatory T cells in a hapten-induced inflammation model results in prolonged and increased inflammation driven by T cells.

Clin. Exp. Immunol. 179(3) , 485-99, (2015)

Regulatory T cells (Tregs ) are known to play an immunosuppressive role in the response of contact hypersensitivity (CHS), but neither the dynamics of Tregs during the CHS response nor the exaggerated...


更多文献

相关化工产品/化学物质:

推荐生产厂家/供应商:

公司名:上海化源世纪贸易有限公司

区域:上海市普陀区

价格:

联系人:徐经理

产品详情:2,4-二硝基氟苯


公司名:上海吉至生化科技有限公司

区域:上海市奉贤区

价格:
¥628.0/100g ¥228.0/25g

联系人:刘佳

产品详情:2,4-二硝基氟苯


查看所有供应商请点击:

2,4-二硝基氟苯供应商


相关化合物

【2,4-二硝基氟苯】化源网提供2,4-二硝基氟苯CAS号70-34-8,2,4-二硝基氟苯MSDS及其说明、性质、英文名、生产厂家、作用/用途、分子量、密度、沸点、熔点、结构式等。CAS号查询2,4-二硝基氟苯上化源网,专业又轻松。>>电脑版:2,4-二硝基氟苯

标题:2,4-二硝基氟苯_MSDS_用途_密度_CAS号【70-34-8】_化源网 地址:https://m.chemsrc.com/mip/cas/70-34-8_441447.html