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| CAS号 : | 1918-77-0 |
精确质量 : | 142.00900 |
| 分子式 : | C6H6O2S |
logP : | 1.37520 |
| 分子量 : | 142.17600 |
PSA : | 65.54000 |
2-噻吩乙酸 | |
2-thienylacetic acid | |
1918-77-0 | |
C6H6O2S | |
142.17600 | |
65.54000 | |
1.37520 | |
142.00900 |
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白色至淡黄色晶体粉末
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160°C/22mm
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160 °C22 mm Hg(lit.)
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63-64 °C(lit.)
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1.336 g/cm3
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0.00363mmHg at 25°C
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Stable under normal temperatures and pressures.
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Store in a cool, dry place. Keep container closed when not in use.
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GHS05 | |
危险 | |
H314 | |
P280; P305 + P351 + P338; P310 | |
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3
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29349990
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8
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S26-S36/37/39-S45-S24/25
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III
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UN 3261 8/PG 2
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Xi
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R36/37/38
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 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% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
<p>1.噻吩在85%磷酸中用乙酐乙酰化，得2-乙酰噻吩。
2.2-乙酰噻吩、95%乙醇、硫磺粉和氨水在140℃、1.4MPa下转位生成2-噻吩乙酰胺，然后加盐酸在80-90℃水解1.5h，经精制而得2-噻吩乙酸。
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<p>头孢噻啶、头孢噻吩钠等药物中间体。</p> |
