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![噻吩[2,3-B]噻吩结构式](https://www.chemicalbook.com/CAS/GIF/250-84-0.gif)
| CAS号 : | 250-84-0 |
精确质量 : | 139.97500 |
| 分子式 : | C6H4S2 |
logP : | 2.96280 |
| 分子量 : | 140.22600 |
PSA : | 56.48000 |
噻吩[2,3-B]噻吩 | |
THIENO[2,3-B]THIOPHENE | |
250-84-0 | |
C6H4S2 | |
140.22600 | |
56.48000 | |
2.96280 | |
139.97500 |
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1.728
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64.3ºC
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225.9ºC at 760mmHg
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1.367g/cm3
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0.126mmHg at 25°C
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GHS07 | |
警告 | |
H302; H315; H319; H335 | |
P261; P305 + P351 + P338 | |
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S22-S24/25
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2934999090
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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% |
