| 货号 (SKU) | 包装规格 | 是否现货 | 价格 | 数量 |
|---|---|---|---|---|
| L102284-50mg |
50mg |
现货  |
| |
| L102284-250mg |
250mg |
现货 |
|
| 别名 | α-D-乳糖单水合物 |
|---|---|
| 英文别名 | Lactose monohydrate | 5989-81-1 | alpha-Lactose monohydrate | D-Lactose monohydrate | alpha-D-Lactose monohydrate | 64044-51-5 | Respitose | Lactose, monohydrate | Lactose(Monohydrate) | alpha-lactose hydrate | Lactose monohydrate [NF] | EWQ57Q8I5X | Lactose, hydrous | (2R,3R,4S,5 |
| 规格或纯度 | 分析标准品 |
| 英文名称 | α-Lactose monohydrate |
| 应用 | 在GLC分离硝 乳糖特性： 由哺乳动物的乳中分出的一种双糖。牛乳中约含4%-5%，人乳中约含6.7%。经酸性水解得等分子的D-葡萄糖和D-半乳糖。是还原糖，能还原费林溶液。在常温水溶液中结晶得α-乳糖，在93℃以上结晶得β-乳糖。 α-乳糖即普通的乳糖。有微弱的甜味，通常带一分子结晶水。呈单斜晶体。120℃时失去结晶水，快速加热，其水溶液有变旋现象，[a]20D-92.6°→+83.5°(10分钟）→+69°(50分钟)→+52.3°(22小时)。 β-乳糖比α-乳糖稍甜。白色晶体。熔点252℃。其水溶液也有变旋现象。[α]25D+34°(3分钟)→+39°(6分钟)→+46°(1小时)→52.3°(22小时)。β-乳糖在常温吸水后能转变成α-乳糖，后者加热至93℃以上又变成β-乳糖。基二甲苯和二甲苯异构体中是液固相的组分。 |
| 运输条件 | 常规运输 |
| 产品介绍 |
一水乳糖是一种天然二糖化合物，是从牛奶中提取的，由右旋糖和半乳糖组成的，味微甜，本品水中易溶，微溶于醇， 氯仿或乙醚中不溶。 |
| IUPAC Name | (2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3S,4R,5R,6S)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol;hydrate |
|---|---|
| INCHI | InChI=1S/C12H22O11.H2O/c13-1-3-5(15)6(16)9(19)12(22-3)23-10-4(2-14)21-11(20)8(18)7(10)17;/h3-20H,1-2H2;1H2/t3-,4-,5+,6+,7-,8-,9-,10-,11+,12+;/m1./s1 |
| InChi Key | WSVLPVUVIUVCRA-KPKNDVKVSA-N |
| Canonical SMILES | C(C1C(C(C(C(O1)OC2C(OC(C(C2O)O)O)CO)O)O)O)O.O |
| Isomeric SMILES | C([C@@H]1[C@@H]([C@@H]([C@H]([C@@H](O1)O[C@@H]2[C@H](O[C@@H]([C@@H]([C@H]2O)O)O)CO)O)O)O)O.O |
| 关联CAS | 14641-93-1 |
| PubChem CID | 104938 |
| 分子量 | 360.31 |
| 比旋光度 | 54.4° (c=10, H2O, NH3) |
|---|---|
| 熔点 | 219°C |
| 分子量 | 360.310 g/mol |
| XLogP3 | |
| 氢键供体数Hydrogen Bond Donor Count | 9 |
| 氢键受体数Hydrogen Bond Acceptor Count | 12 |
| 可旋转键计数Rotatable Bond Count | 4 |
| 精确质量Exact Mass | 360.127 Da |
| 单同位素质量Monoisotopic Mass | 360.127 Da |
| 拓扑极表面积Topological Polar Surface Area | 191.000 Ų |
| 重原子数Heavy Atom Count | 24 |
| 形式电荷Formal Charge | 0 |
| 复杂度Complexity | 382.000 |
| 同位素原子数Isotope Atom Count | 0 |
| 定义的原子立体中心计数Defined Atom Stereocenter Count | 10 |
| 未定义的原子立体中心计数Undefined Atom Stereocenter Count | 0 |
| 定义的键立体中心计数Defined Bond Stereocenter Count | 0 |
| 未定义的键立体中心计数Undefined Bond Stereocenter Count | 0 |
| 所有立体化学键的总数The total count of all stereochemical bonds | 0 |
| 共价键合单元计数Covalently-Bonded Unit Count | 2 |
| 1. Zheng Jiang, Hong Wang, Miao Yu, Cheng Qu, Wei Yue, Qinan Wu. (2023) A low-cost efficient online derivatization system for the determination of saccharides by high-performance liquid chromatograph-ultraviolet detector. JOURNAL OF SEPARATION SCIENCE, 46 (20): (2300384). [PMID:37691057] [10.1002/jssc.202300384] |
| 2. Haiqing Wang, Wei Shi, Lei Hou, Chunhui Li, Zhiquan Wang, Lei Yang, Juncheng Cao. (2023) Quantitative analysis of aqueous biomolecular mixtures by THz spectroscopy based on high-power LiNbO3 radiation source. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 287 (122075). [PMID:36356399] [10.1016/j.saa.2022.122075] |
| 3. Yuqi Yang, Yiyue Guo, You Xu, Yingying Meng, Xing Zhang, Xuejun Xia, YuLing Liu. (2020) Factors affecting the buccal delivery of deformable nanovesicles based on insulin–phospholipid complex: an in vivo investigation. DRUG DELIVERY, [PMID:32597266] [10.1080/10717544.2020.1778814] |
| 4. You Xu, Yiyue Guo, Yuqi Yang, Yingying Meng, Xuejun Xia, Yuling Liu. (2019) Stabilization of Deformable Nanovesicles Based on Insulin-Phospholipid Complex by Freeze-Drying. Pharmaceutics, 11 (10): (539). [PMID:31623287] [10.3390/pharmaceutics11100539] |
| 5. Rui Li, Jinhu Wang, Yi He, Faqin Dong, Liang Bian, Bowen Li. (2019) Mechanochemical Synthesis of Defective Molybdenum Trioxide, Titanium Dioxide, and Zinc Oxide at Room Temperature. ACS Sustainable Chemistry & Engineering, 7 (14): (11985–11989). [10.1021/acssuschemeng.9b00374] |
| 1. Zheng Jiang, Hong Wang, Miao Yu, Cheng Qu, Wei Yue, Qinan Wu. (2023) A low-cost efficient online derivatization system for the determination of saccharides by high-performance liquid chromatograph-ultraviolet detector. JOURNAL OF SEPARATION SCIENCE, 46 (20): (2300384). [PMID:37691057] [10.1002/jssc.202300384] |
| 2. Haiqing Wang, Wei Shi, Lei Hou, Chunhui Li, Zhiquan Wang, Lei Yang, Juncheng Cao. (2023) Quantitative analysis of aqueous biomolecular mixtures by THz spectroscopy based on high-power LiNbO3 radiation source. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 287 (122075). [PMID:36356399] [10.1016/j.saa.2022.122075] |
| 3. Yuqi Yang, Yiyue Guo, You Xu, Yingying Meng, Xing Zhang, Xuejun Xia, YuLing Liu. (2020) Factors affecting the buccal delivery of deformable nanovesicles based on insulin–phospholipid complex: an in vivo investigation. DRUG DELIVERY, [PMID:32597266] [10.1080/10717544.2020.1778814] |
| 4. You Xu, Yiyue Guo, Yuqi Yang, Yingying Meng, Xuejun Xia, Yuling Liu. (2019) Stabilization of Deformable Nanovesicles Based on Insulin-Phospholipid Complex by Freeze-Drying. Pharmaceutics, 11 (10): (539). [PMID:31623287] [10.3390/pharmaceutics11100539] |
| 5. Rui Li, Jinhu Wang, Yi He, Faqin Dong, Liang Bian, Bowen Li. (2019) Mechanochemical Synthesis of Defective Molybdenum Trioxide, Titanium Dioxide, and Zinc Oxide at Room Temperature. ACS Sustainable Chemistry & Engineering, 7 (14): (11985–11989). [10.1021/acssuschemeng.9b00374] |
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