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| CAS号 : | 99643-38-6 |
精确质量 : | 336.23100 |
| 分子式 : | C21H28N4 |
logP : | 4.26370 |
| 分子量 : | 336.47400 |
PSA : | 12.96000 |
1,1',3,3',5,5',6,6'-octamethyl-2,2'-spirobi[benzimidazole] | |
99643-38-6 | |
C21H28N4 | |
336.47400 | |
12.96000 | |
4.26370 | |
336.23100 |
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1.66
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236.5ºC
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537.2ºC at 760 mmHg
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1.18g/cm3
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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% |
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