问题：请教各位前辈:胞嘧啶的MSDS??
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提问：老虎
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版块：有机化学问题(jimuwei,fpcwin1211,netpanda,yjgzfl,Ftian,)
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时间：2005-12-09 11:02:31 编辑加入/取消收藏订制/取消短消息举报该贴

请教各位前辈:胞嘧啶的MSDS??

回复人：老虎,▲ () 时间：2005-12-09 11:13:13 编辑	1楼
壬基酚聚氧乙烯醚的 HS编码又是什么呢

回复人：qiangpeng,★★★★★ (化学百科) 时间：2005-12-09 11:22:43 编辑	2楼
HS编码为29071390, 包括辛基酚及其异构体和盐, 壬基酚异构体和盐

回复人：老虎,▲ () 时间：2005-12-09 11:24:18 编辑	3楼
xiexie

回复人：p401,▲ (对有机化学很感兴趣) 时间：2008-07-15 13:19:39 编辑

4楼

物性数据
Lustrous monoclinic or triclinic platelets from water. Anhydr at 100° brown around 300° dec 320-325° uv max (pH 8.8): 196.5, 267 nm (epsilon x 10-3 22.5, 6.1). pK1 4.60; pK2 12.16. One gram dissolves in 130 ml water. Slightly sol in alcohol, insol in ether. Gives red color when dissolved in soln of sodium hypochlorite to which a drop of NH4OH is added. Forms salts with acids.
Purity(Titration): min. 98.0% (calcd.on anhydrous substance)
Purity(HPLC): min. 98 area%
Solubility in dilute HCl: to pass test
Molar extinction coefficient: 10300 to 11000(calcd.on anhydrous substance)
Relative Absorption (E1%/1cm) E250/E260: 0.44 to 0.50
E280/E260: 1.48 to 1.54
Water: max. 5.0%
EINECS:200-749-5
Density:0.48
Melting point:>300°C
General Statement: NH-Form predominates.
Synthesis: Constit. of DNA of plants and animals. Obt. from hydrol. of nucleic acids.
Physics Description: Plates + 5H2O (H2O).
Melting Point: Mp 320-325 deg dec.
Dissociation Constant: pKa1 4.6; pKa2 12.16 (25 deg).

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其他名称
Cytosine
4-Amino-2-oxo-1,2-dihydropyrimidine
4-Amino-2(1)-pyrimidone
4-amino-2-oxo-1,2-dihydropyrimidine; 4-amino-2-pyrimidinol; 4-amino-2-hydroxypyrimidine
Cytosine
4-Amino-2(1H)-pyrimidinone,9CI
4-Amino-2-hydroxypyrimidine

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参考文献
Aldrich Library of FT-IR Spectra, 1st edn.,1985, 2, 827C (ir) Aldrich Library of 13C and 1H FT NMR Spectra,1992, 3, 383B (nmr) Wheeler, H.L. et al.,Am. Chem. J.,1903, 29, 429 (4-N-Ac) Hilbert, G.E. et al.,J.A.C.S.,1935, 57, 552 (synth) Kokko, J.P. et al.,J.A.C.S.,1962, 84, 1042 (pmr) Barker, D.L. et al.,Acta Cryst.,1964, 17, 1581 (cryst struct) Rice, J.M. et al.,J.A.C.S.,1965, 87, 4569 (ms) Hill, J.A. et al.,J.C.S.,1965, 1515 (synth) David, S. et al.,Bull. Soc. Chim. Fr.,1969, 816 (synth) Coletta, F. et al.,J. Magn. Reson.,1976, 22, 453 (cmr, pmr) Mandel, N.S., Acta Cryst. B,1977, 33, 1079 (cryst struct) Ward, A.D. et al.,J. Med. Chem.,1977, 20, 88 (4-N-Ac) Angibeaud, P. et al.,Carbohydr. Res.,1980, 78, 195 (4-N-Ac, uv, pmr) Mathlouth, M. et al.,Carbohydr. Res.,1986, 146, 1 (ir, Raman) Gosselin, G. et al.,J. Med. Chem.,1986, 29, 203 (derivs) Okabe, M. et al.,J.O.C.,1991, 56, 4392 (4-N-Ac, pmr) Khutova, B.M. et al.,Khim. Geterotsikl. Soedin.,1991, 512 (4-N-Ac) Gould, I.R. et al.,Spectrochim. Acta A,1992, 48, 811 (ir, tautom) Kwiatkowski, J.S. et al.,J. Phys. Chem.,1996, 100, 941 (ir, struct, tautom) Florian, J. et al.,J. Phys. Chem.,1996, 100, 5578 (ir, Raman, tautom) [00000563-9]

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