Methylene Blue (Basic Blue 9)
(Synonyms: 亚甲蓝; Basic Blue 9; CI-52015; Methylthioninium chloride) 目录号 : GC30051
Methylene Blue (Basic Blue 9, Tetramethylthionine chloride, methylthioninium chloride, CI-52015) is used as a dye in chromoendoscopy. It Inhibits tau filament formation with IC50 of 1.9μM. Also it inhibits soluble guanylyl cyclase.
Cas No.:61-73-4
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Methylene Blue (Basic Blue 9, Tetramethylthionine chloride, methylthioninium chloride, CI-52015) is used as a dye in chromoendoscopy. It Inhibits tau filament formation with IC50 of 1.9μM. Also it inhibits soluble guanylyl cyclase.
MB may inhibit the action of nitric oxide synthase itself and could also inactivate nitric oxide directly, possibly through the generation of superoxide anions. In addition to interfering with the nitric oxide–cyclic guanosine monophosphate pathway, MB has also been shown to directly activate calcium-dependent potassium channels and to enhance release of noradrenaline from intracellular stores[1].
Methylene Blue acts by inhibiting guanylate cyclase, thus decreasing C-GMP and vascular smooth muscle relaxation. When injected intravenously, MB selectively accumulates in parathyroid glands, thereby facilitating the identification of these structures during surgery. Pharmacokinetic studies in rodents revealed that intravascular administration of MB leads to a rapid and extensive accumulation of this drug in the central nervous system (CNS)[1].
[1] Vutskits L, et al. Anesthesiology. 108(4):684-692. [2] Hochgr鋐e K, et al. Acta Neuropathol Commun. 2015, 3:25. [3] Masaki E, et al. Anesth Analg. 1999, 89(2):484-489.
| Cas No. | 61-73-4 | SDF | |
| 别名 | 亚甲蓝; Basic Blue 9; CI-52015; Methylthioninium chloride | ||
| Canonical SMILES | CN(C)C1=CC=C2C(SC(C(C=C/3)=N2)=CC3=[N+](C)/C)=C1.[Cl-] | ||
| 分子式 | C16H18ClN3S | 分子量 | 319.85 |
| 溶解度 | Water : ≥ 50 mg/mL (156.32 mM) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 3.1265 mL | 15.6323 mL | 31.2647 mL |
| 5 mM | 0.6253 mL | 3.1265 mL | 6.2529 mL |
| 10 mM | 0.3126 mL | 1.5632 mL | 3.1265 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
The Potentials of Methylene Blue as an Anti-Aging Drug
Methylene blue (MB), as the first fully man-made medicine, has a wide range of clinical applications. Apart from its well-known applications in surgical staining, malaria, and methemoglobinemia, the anti-oxidative properties of MB recently brought new attention to this century-old drug. Mitochondrial dysfunction has been observed in systematic aging that affects many different tissues, including the brain and skin. This leads to increaseding oxidative stress and results in downstream phenotypes under age-related conditions. MB can bypass Complex I/III activity in mitochondria and diminish oxidative stress to some degree. This review summarizes the recent studies on the applications of MB in treating age-related conditions, including neurodegeneration, memory loss, skin aging, and a premature aging disease, progeria.
Methylene blue
Methylene blue finds its major utilization in toxicology in the treatment of methemoglobinemia at a dose of 1 to 2 mg/kg intravenously. By interacting with methemoglobin and the erythrocyte's enzyme systems to reduce back to hemoglobin, methylene blue is a generally safe drug with dose-related hemolytic effects. People with G-6-PD deficiency, along with patients exposed to aniline dyes and dapsone, may present with special risks in the treatment of methemoglobinemia.
From Mitochondrial Function to Neuroprotection-an Emerging Role for Methylene Blue
Methylene blue (MB) is a well-established drug with a long history of use, owing to its diverse range of use and its minimal side effect profile. MB has been used classically for the treatment of malaria, methemoglobinemia, and carbon monoxide poisoning, as well as a histological dye. Its role in the mitochondria, however, has elicited much of its renewed interest in recent years. MB can reroute electrons in the mitochondrial electron transfer chain directly from NADH to cytochrome c, increasing the activity of complex IV and effectively promoting mitochondrial activity while mitigating oxidative stress. In addition to its beneficial effect on mitochondrial protection, MB is also known to have robust effects in mitigating neuroinflammation. Mitochondrial dysfunction has been identified as a seemingly unifying pathological phenomenon across a wide range of neurodegenerative disorders, which thus positions methylene blue as a promising therapeutic. In both in vitro and in vivo studies, MB has shown impressive efficacy in mitigating neurodegeneration and the accompanying behavioral phenotypes in animal models for such conditions as stroke, global cerebral ischemia, Alzheimer's disease, Parkinson's disease, and traumatic brain injury. This review summarizes recent work establishing MB as a promising candidate for neuroprotection, with particular emphasis on the contribution of mitochondrial function to neural health. Furthermore, this review will briefly examine the link between MB, neurogenesis, and improved cognition in respect to age-related cognitive decline.
The Story of Nitric Oxide, Sepsis and Methylene Blue: A Comprehensive Pathophysiologic Review
Methylene blue (MB) is considered to be the first synthetic medication ever used in humans. There are many indications for MB, including vasoplegic shock. Nitric oxide (NO), the central mediator of sepsis, promotes vasoplegia by enhancing the guanylate cyclase cyclic guanosine monophosphate second messenger system, the effect of which is attenuated by MB. Therefore, the use of MB represents a unique pharmacologic approach towards treating the underlying pathophysiology of vasoplegia in sepsis. There are numerous reports of the successful use of MB in refractory shock in the literature. This manuscript describes the historical aspects of the identification of NO as the endothelial derived relaxation factor and its role in the pathogenesis of vasoplegia in septic shock. An analysis of the existing evidence for the use of MB as an inhibitor of NO in vasodilatory shock is provided. The adverse effects associated with the use of MB and an approach to optimal dosing in septic shock are also addressed.
Methylene blue in management of COVID19
Many novel drugs were used in COVID19 pandemic to improve outcome. One such molecule is Methylene blue which is a, tricyclic phenothiazine compound approved for the treatment of acquired methemoglobinemia and some other uses US FDA. This molecule was found to inhibit the interaction of COVID19 virus and target cells in dose dependent manner. It was also found to inhibit interaction of viron with host cells, by inhibiting interaction of SARS CoV2 spike protein and ACE inhibitor receptor interactions.
Material and methods: A) Aim & Objectives: To evaluate the effect of Nebulised Methylene blue on the clinical course and outcomes of patients with COVID-19 infections. B) Study design Observational Study C) Participants 63 COVID19 RT-PCR positive cases divided in 3 groups. Group 1 consists of patients who were prescribed Methylene blue nebulization in form of Methylene blue 0.5 mg via nebulization along with bronchodilator Levosalbutamol (1.25 mg) + Ipratropium (500 mcg) three times a day . Group 2 consists of patients with Methylene blue nebulization in form of Methylene blue 0.5 mg via nebulization along with inhalational steroid Budesonide (1 mg). Group 3 acted were those patients who had no Methylene blue nebulisation in their treatment.
Observation: 1) Analysis 63 cases were divided in 3 groups of 21 each, descriptive and frequency analysis of cases in groups are shown.
Conclusion: No statistically significant difference in outcome measures like Spo2, duration of hospital stay or inflammatory markers. A general trend of fall in inflammatory markers and O2 requirements in group receiving methylene blue but this difference was not consistantly statistically significant.