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Oxabiphor acid
| 目录号 | 数量 | 价格 | 提前通知时间 | 购买此产品 |
|---|---|---|---|---|
| 3755-10g | 10 g | 请查询 | 12 天 |
Oxabiphor (Oxabifor) acid is a chelator for the lanthanide tetraphosphonate complexes synthesis. Oxabiphor (oxa-bis-ethylenenitrile tetra(methylene phosphonic acid); oxybis(ethylene)bis(nitrilobismethylene)tetrakisphosphonic acid) is useful for the radionuclides delivery due to complexation properties [1].
Supplied as a dihydrate and meets the quality requirements:
| Quality criteria (method) | Reference value |
|---|---|
| Authenticity (1H NMR) | meets the requirements |
| Key product content (1H NMR) | not less than 98 % |
| Acceptable impurity (1H NMR) | 2-(2-Aminoethoxy)ethylamine – no more than 0.3 % |
| Residual solvents class 1,2 (1H NMR) | visual absence of signals in the spectrum (less than 0.1 %) |
| Authenticity (31P NMR) | meets the requirements |
| Acceptable impurity (31P NMR) | Trisphosphonates – no more than 1.0 % |
| Acceptable impurity (31P NMR) | Hydroxymethylphosphonic acid – no more than 0.5 % |
| Chloride ion content (Reverse precipitation titration) | no more than 0.2 % |
| Chemical impurities (Atomic emission spectroscopy) | no more than (ug/g): As – 50; Ba – 5; Be – 0,25; Bi – 5; Cd – 50; Cr – 7; Cu – 2,5; Fe – 15; Hg – 125; Mn – 0,5; Mo – 5; Ni – 5; Pb – 5; Sn – 5; Sb – 50; Te – 50; Zn – 125; Al – 50 |
[1] Maruk A. et al. Synthesis, Complexation Properties, and Evaluation of New Aminodiphosphonic Acids as Vector Molecules for 68Ga Radiopharmaceuticals. Molecules. 2021. 26(8):2357. doi:10.3390/molecules26082357
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DOTA-PEG4-azide hydrochloride
PEG4-bifunctional linker with DOTA chelating and alkyne-reactive azido groups for bioconjugation.
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General properties
| Appearance: | white powder |
| Molecular weight: | 480.18 |
| Molecular formula: | C8H24N2O13P4 |
| IUPAC name: | 2-[7-Phosphono-6-(phosphonomethyl)-3-oxa-6-azaheptyl]-2-aza-1,3-propanediylbis(phosphonic acid) |
| Quality control: | NMR 1H (98+%) |
| Storage conditions: | 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. |
| 安全数据表（MSDS）: | 下载 |
| 产品规格 |
Product is offered and sold for research purposes only. Product is not tested for safety and efficacy in food, drug, medical device, cosmetic, no express or implied authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, for humans or animals or for commercial purposes.
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