化学品概述
无色至白色结晶或结晶性粉末。熔点230-232℃。溶于热水和钙液,难溶于水(1g/5L,25℃)和乙醇(1g/1.3L,25℃),不溶于其他有机溶剂。在空气中对氧、热稳定。可燃; 燃烧产生有毒氮氧化物和硫氧化物烟雾
基本信息
- 中文名称:
- 中文别名:
- 英文名称:
- 英文别名:
- 分子式:
- 分子量:
- CAS:
- EINECS编号:
- MDL编号:
- 精确质量:
- InChI:
- InChI Key:
- MOL文件:
- PSA:
- LogP:
- FEMA编码:
- COE编码:
理化性质
-
外观性质:
powder;
-
熔点:
231-233 °C(lit.)
- 沸点:
- 密度:
-
折射率:
90.5 ° (C=2, 0.1mol/L NaOH)
-
比旋光度:
89 º (c=1, 0.1N NaOH)
- 闪点:
- 溶解性:
-
酸度系数(pKa):
Soluble in hot water, dimethyl sulfoxide, alcohol and benzene.
- 相对极性:
-
PH值:
4.5 (0.1g/l, H2O)
- 爆炸极限值(explosive limit):
-
敏感性:
Light Sensitive
-
储存条件:
2-8°C
- 检测方法:
- 蒸气压:
-
Merck:
14,1231
-
BRN:
86838
-
NIST化学物质信息:
http://webbook.nist.gov/cgi/cbook.cgi?ID=58-85-5&Units=SI
-
EPA化学物质信息:
http://iaspub.epa.gov/sor_internet/registry/substreg/searchandretrieve/advancedsearch/search.do?search=?search=&searchCriteria(advancedCriteria)=casNumber=58-85-5
安全信息
-
危化品标志:
Xn
-
危化代码:
20/21/22-36/37/38
-
安全代码:
24/25-36-26
-
海关编码/HS编码:
29362930
- 危化品运输编码:
-
WGK Germany:
1
-
RTECS:
XJ9088200
-
TSCA:
Yes
- 危化等级:
- 包装类别:
- 毒理资料:
-
灭火剂:
干粉,泡沫,沙土,二氧化碳, 雾状水
应用领域
作为饲料添加剂,主要用于禽类和母猪饲料。通常预混的质量分数为1%-2%。营养增补剂。按我国GB2760-90规定,可用于食品工业作为加工助剂。该品具有预防皮肤病、促进脂类代谢等生理功能。大量食用生蛋白可导致生物素缺乏。为羧化酶的辅酶,参与很多羧化反应,且是糖、蛋白质和脂肪中间代谢的一个重要辅酶作食品强化剂。可用于婴幼儿食品,使用量为0.1~0.4mg/kg,在饮液中为0.02~0.08mg/kg。可用于蛋白、抗原、抗体、核酸(DNA、RNA)等的标记
制备方法/合成路线
由微生物发酵法制得。
参考资料
- Growth factor present in minute amounts in every living cell. Plays an indispensable role in numerous naturally occurring carboxylation reactions. Occurs mainly bound to proteins or polypeptides. The richest sources are liver, kidney, pancreas, yeast, and milk. The biotin content of cancerous tumors is higher than that of normal tissue. Biotin combines with the proteinaceous substance, avidin, in raw egg-white and becomes inactive. When on diets contg large amounts of raw egg-white the rat or chick develops characteristic skin lesions and growth is retarded; these symptoms can be prevented by feeding additional biotin. Isoln from egg yolk: Kögl, Tönnis, Z. Physiol. Chem. 242, 43 (1936); from liver: György et al., J. Biol. Chem. 131, 745 (1939); du Vigneaud et al., ibid. 140, 643 (1941). Identity of biotin with vitamin H: du Vigneaud et al., Science 92, 62 (1940). Structure: du Vigneaud et al., J. Biol. Chem. 146, 475 (1942). First synthesis: Harris et al., J. Am. Chem. Soc. 67, 2096 (1945). Configuration: Traub, Nature 178, 649 (1956). Stereospecific total synthesis of the naturally occurring d-form: P. N. Confalone et al., J. Am. Chem. Soc. 97, 5936 (1975); eidem, J. Org. Chem. 42, 1630 (1977); T. Ogawa et al., Carbohydr. Res. 57, C31 (1977); F. G. M. Vogel et al., Ann. 1980, 1972; R. R. Schmidt, M. Maier, Synthesis 1982, 747. Synthesis of the dl-form: P. N. Confalone et al., Helv. Chim. Acta 59, 1005 (1976); M. Marx et al., J. Am. Chem. Soc. 99, 6794 (1977); A. Fliri, K. Hohenlohe-Oehringen, Ber. 113, 607 (1980); Ph. Rossy et al., Tetrahedron Lett. 22, 3493 (1981). Biosynthetic studies: R. J. Parry, M. G. Kunitani, J. Am. Chem. Soc. 98, 4024 (1976); R. J. Parry, M. V. Naidu, Tetrahedron Lett. 1980, 4783. Coordination properties: H. Siegel, Experientia 37, 789 (1981). Mechanism of action: M. J. Cravey, H. Kohn, J. Am. Chem. Soc. 102, 3928 (1980); D. L. Vesely, Science 216, 1329 (1982). Reviews: A. F. Wagner, K. Folkers, Vitamins and Coen
- MSDS
图谱
计算化学数据
-
疏水参数计算参考值(XlogP):
0.3
-
氢键供体数量 :
3
-
氢键受体数量:
4
-
可旋转化学键数量:
5
-
拓扑分子机型表面积(TPSA) :
104
-
重原子数量:
16
-
形式电荷:
0
-
复杂度:
298
-
同位素原子数量:
0
-
确定原子立构中心数量:
3
-
不确定原子立构中心数量:
0
-
确定化学键立构中心数量:
0
-
不确定化学键立构中心数量:
0
-
共价键单元数量:
1