<生产厂家价格>

2-甲基-5-乙基吡啶

2-甲基-5-乙基吡啶用途

【用途一】
用于医药工业，用于制备烟酸、烟酰胺、异烟肼、尼可杀米等
【用途二】
医药中间体。

2-甲基-5-乙基吡啶名称

[ CAS 号 ]:
104-90-5

[ 中文名 ]:
5-乙基-2-甲基-吡啶

[ 英文名 ]:
5-Ethyl-2-methylpyridine

[中文别名 ]:

2-甲基-5-乙基吡啶

[英文别名 ]:

2-Picoline,5-ethyl
Aldehydecollidine
5-ethyl-2-methyl-pyridine
Aldehydine
5-Ethyl-2-picoline
Ethyl-5 methyl-2 pyridine
Pyridine, 5-ethyl-2-methyl-
Aldehydkollidin
2-METHYL-5-ETHYLPYRIDINE
MFCD00006344

2-甲基-5-乙基吡啶物理化学性质

[ 密度 ]:
0.9±0.1 g/cm3

[ 沸点 ]:
176.0±9.0 °C at 760 mmHg

[ 熔点 ]:
-70.9 °C

[ 分子式 ]:
C₈H₁₁N

[ 分子量 ]:
121.180

[ 闪点 ]:
66.1±0.0 °C

[ 精确质量 ]:
121.089149

[ PSA ]:
12.89000

[ LogP ]:
2.18

[ 外观性状 ]:
液体

[ 蒸汽密度 ]:
4.2 (vs air)

[ 蒸汽压 ]:
1.5±0.3 mmHg at 25°C

[ 折射率 ]:
1.500

[ 储存条件 ]:
库房通风低温干燥,与食品原料、纺织品类分开储运

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

[ 水溶解性 ]:
practically insoluble

2-甲基-5-乙基吡啶MSDS

2-甲基-5-乙基吡啶毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TJ6825000

CHEMICAL NAME :: 2-Picoline, 5-ethyl-

CAS REGISTRY NUMBER :: 104-90-5

BEILSTEIN REFERENCE NO. :: 0109269

LAST UPDATED :: 199806

DATA ITEMS CITED :: 13

MOLECULAR FORMULA :: C8-H11-N

MOLECULAR WEIGHT :: 121.20

WISWESSER LINE NOTATION :: T6NJ B1 E2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Open irritation test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 368 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1000 ppm/4H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 826 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 282 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 294 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 1 mL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 2500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :: Sex chromosome loss and nondisjunction

TEST SYSTEM :: Yeast - Saccharomyces cerevisiae

DOSE/DURATION :: 1500 ppm

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 163,23,1986 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-RUSSIA:STEL 2 mg/m3;Skin JAN 1993

2-甲基-5-乙基吡啶安全信息

[ 符号 ]:

GHS05, GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H302-H311 + H331-H314

[ 警示性声明 ]:
P261-P280-P305 + P351 + P338-P310

[ 个人防护装备 ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
C:Corrosive

[ 风险声明 (欧洲) ]:
R20/21/22;R34

[ 安全声明 (欧洲) ]:
S26-S36/37/39-S45-S61

[ 危险品运输编码 ]:
UN 2300 6.1/PG 3

[ WGK德国 ]:
3

[ RTECS号 ]:
TJ6825000

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

[ 海关编码 ]:
2942000000

2-甲基-5-乙基吡啶合成路线

2-甲基-5-乙基吡啶上下游产品

2-甲基-5-乙基吡啶上游产品

2-甲基-5-乙基吡啶下游产品

2-甲基-5-乙基吡啶制备

1、由乙醛与氨经液相反应将乙醛用硫酸酸化，聚合成三聚乙醛；然后于醋酸经高压泵与氨的水溶液混合送入反应器，反应温度220~280℃，压力10~20MPa，产物冷却后分成有机层和水层。水层同新鲜氨混合循环到反应器；有机层减压和汽提去除夹带的氨、有机层中含有2-甲基-5-乙基吡啶、2-甲基吡啶、4-甲基吡啶、高沸点吡啶碱、未反应的三聚乙醛和水；经精馏得到2-甲基-5-乙基吡啶、2-甲基吡啶和4-甲基吡啶三种产品。

2、由乙醛、三聚乙醛和氨（30%~40%水溶液）生产用醋酸铵作催化剂先把乙醛转化成三聚乙醛，再加入35%氨水在高温和加压下反应生产MEP。

2-甲基-5-乙基吡啶海关

[ 海关编码 ]: 2933399090

[ 中文概述 ]:
2933399090. 其他结构含非稠合吡啶环的化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0%

[ 申报要素 ]: 品名, 成分含量, 用途, 乌洛托品请注明外观, 6－己内酰胺请注明外观, 签约日期

[ Summary ]:
2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

2-甲基-5-乙基吡啶文献

QSAR study on permeability of hydrophobic compounds with artificial membranes.

Bioorg. Med. Chem. 15 , 3756-67, (2007)

We previously reported a classical quantitative structure-activity relationship (QSAR) equation for permeability coefficients (P(app-pampa)) by parallel artificial membrane permeation assay (PAMPA) of...

Identification of aroma compounds in Parmigiano-Reggiano cheese by gas chromatography/olfactometry.

J. Dairy Sci. 85(6) , 1362-9, (2002)

The volatile compounds in Parmigiano-Reggiano cheese were isolated by solvent extraction/high vacuum distillation, followed by separation into acidic, basic, water-soluble, and neutral fractions. The ...

A Study of the Behavior of Maillard Reaction Products Analyzed by Solid-Phase Microextraction—Gas Chromatography—Mass Selective Detection. Coleman WM

J. Chromatogr. Sci. 34(5) , 213-218, (1996)

更多文献