乙基纤维素_MSDS_用途_密度_乙基纤维素CAS号【9004-57-3】

乙基纤维素是纤维素的衍生物。乙基纤维素是一种无毒且可生物降解的聚合物,具有独特的特性,如油凝胶的形成、活性成分的输送以及在食品和制药领域的成膜能力。乙基纤维素可用作辅料,如包衣剂、调味剂、片剂填充剂等。药用辅料,或称药用辅料,是指除药物成分外,在制药过程中使用的其他化学物质。药用辅料一般是指药物制剂中的非活性成分,可以提高药物制剂的稳定性、溶解性和加工性。药用辅料也会影响联合给药药物的吸收、分布、代谢和消除(ADME)过程[1][2]。

[ 描述 ]:

乙基纤维素是纤维素的衍生物。乙基纤维素是一种无毒且可生物降解的聚合物,具有独特的特性,如油凝胶的形成、活性成分的输送以及在食品和制药领域的成膜能力。乙基纤维素可用作辅料,如包衣剂、调味剂、片剂填充剂等。药用辅料,或称药用辅料,是指除药物成分外,在制药过程中使用的其他化学物质。药用辅料一般是指药物制剂中的非活性成分,可以提高药物制剂的稳定性、溶解性和加工性。药用辅料也会影响联合给药药物的吸收、分布、代谢和消除(ADME)过程[1][2]。

[ 相关类别 ]:

研究领域 >> 其他

信号通路 >> 其他 >> 其他

[参考文献]

[1]. Ahmadi P, Jahanban-Esfahlan A, Ahmadi A, et al. Development of ethyl cellulose-based formulations: A perspective on the novel technical methods[J]. Food Reviews International, 2022, 38(4): 685-732.

[2]. Elder DP, et al. Pharmaceutical excipients - quality, regulatory and biopharmaceutical considerations. Eur J Pharm Sci. 2016 May 25;87:88-99.

[ 密度 ]:
1.45

[ 沸点 ]:
654.2±55.0 °C at 760 mmHg

[ 熔点 ]:
240-255ºC

[ 分子式 ]:
C₂₃H₂₄N₆O₄

[ 分子量 ]:
448.474

[ 闪点 ]:
349.5±31.5 °C

[ 精确质量 ]:
448.185913

[ PSA ]:
147.66000

[ LogP ]:
6.62

[ 外观性状 ]:
白色至黄褐色的液体

[ 蒸汽压 ]:
0.0±2.0 mmHg at 25°C

[ 折射率 ]:
1.14

[ 储存条件 ]:
room temp

[ 水溶解性 ]:
insoluble

详细MSDS(安全技术说明书)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: FJ5950500

CHEMICAL NAME :: Cellulose, ethyl ether

CAS REGISTRY NUMBER :: 9004-57-3

LAST UPDATED :: 199710

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 19,97,1981 ** ACUTE TOXICITY DATA **

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >5 gm/kg

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

REFERENCE :: FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 19,113,1981

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

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >5 gm/kg

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

REFERENCE :: FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 19,113,1981 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 82229 No. of Facilities: 10802 (estimated) No. of Industries: 130 No. of Occupations: 90 No. of Employees: 98834 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5864 No. of Facilities: 6051 (estimated) No. of Industries: 79 No. of Occupations: 80 No. of Employees: 74759 (estimated) No. of Female Employees: 27837 (estimated)

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xi:Irritant;

[ 风险声明 (欧洲) ]:
R36/37/38

[ 安全声明 (欧洲) ]:
S26-S36

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
1

[ RTECS号 ]:
FJ5950500

1.精制纸浆或棉绒与氢氧化钠制成碱性纤素。再在加压釜中使碱性纤维素与氯乙烷反应，将葡萄糖内的三个羟基全部或者一部分置换为乙氧基。反应产物用热水洗涤，干燥，即制得乙基纤维素。

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