14. The calculation of molecularformula of compounds was described by13C NMR (com, DEPT) data in this paper. It is a useful method for unknown compounds.
15. Ammonium di-iso-butyl dithiophosphate and ammonium din-butyl dithiophosphate is isobutyl isomers, they have the same molecular formula, only alkyl isomers.
异丁基铵黑药和正丁基铵黑药是同分异构体，它们有相同的分子式，只烷基异构。
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16. On the basis of production practice, the reaction mechanism of highly efficient aliphatic water reducer was analyzed in-depth, its molecularformula was put forward.
17. To provide the molecular formula and molecular weight, as the substance has a unique and defined molecular structure according to item III of your notification form.
根据申报表项填写情况，申报物质有唯一确定的分子结构，所以应准确填写申报物质的分子式和分子量。
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18. Norvasc Amlodipine Besylate Molecular formula: C26H31ClN2O8S Properties: white or light yellow crystalline powder, odorless, bitter taste, soluble in water, methanol.
19. Menthol is a chemical agent, menthol by the mint leaves and stems in the extract, white crystals, molecular formula C10H20O, mint, and peppermint oil to the main ingredient.
20. Wedge perspective formula is one of methods to expresses organic molecularformula 's stereoscopic construction, the means to write it in Chemistry textbook isn't very dearly.
楔形式是有机分子立体结构表示方法之一，有机化学教科书中的书写方法不够清楚。
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21. Its Molecular Formula for ozone, oxygen is the same allotrope, with its own unique character, in natural conditions, the ozone is slightly special light blue fresh smell of gas.
22. This paper estimates the carbon content of different trees by the plant molecular formula, and estimated the forest carbon sequestration in our country using the carbon content as parameter.
本文通过植物分子式的方法确定不同树种的含碳量，以此为参数对我国的森林碳汇量进行了估算。
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23. According to the principle of isomeric chemistry, when organic substances have the same molecular formula and the same functional groups, their chemical and physical properties are very similar.
根据同分异构的化学原理，有机物有相同的分子式和相同的官能团时，它们的化学性质和物理性质很相似。
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24. The purified compound showed a molecular formula of C28H44O3, displaying characteristic features of epidioxy sterols and was reverted to ergosterol when submitted to S. schenckii enzymatic extract.
纯化化合物展示了分子式C28H44O3，显示过氧甾醇的特征和复归麦角提交给美国时，申克酶提取。
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25. The invention provides a perfluorinated ion exchange resin and a preparation method and application thereof. The molecular formula of the perfluorinated ion exchange resin is shown as the formula m.
本发明提供了一种全氟离子交换树脂，该全氟离子交换树脂的分子式如式m所示。
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26. The average condensed formula of molecular structure is effective to derive the composition of the peripheral substituents of porphyrins, especially geoporphyrins with identical carbon numbers.
27. The aim of the paper is to provide helpful Suggestions for the formula design and development of microspheres loaded with small molecular and water soluble drugs.
探讨微球制剂的载药、释药机制，为处方设计和水溶性小分子药物微球制剂的开发提供指导。
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28. The aim of the paper is to provide helpful Suggestions for the formula design and development of microspheres loaded with small molecular and water soluble drugs.
