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Avermectin B1a (Synonyms: 阿维菌素B1a; Abamectin B1a)
目录号: PC12825 纯度: ≥98%
CAS No. :65195-55-3
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中文名称
Avermectin B1a
中文别名
阿维菌素 B1a;阿巴汀;爱弗菌素;克螨灵;齐螨素;阿维菌素;阿维菌素B1;阿维菌素原药;伊维菌素;阿维菌素菌素B1a
英文名称
Avermectin B1a
英文别名
Avermectin B1a;ABERMECTINS;5-o-demethyl-avermectin a1;5-O-DemethylAvermectin A1a;Antibiotic C-076B1a;Avamectin B1a;C-076B1a;Abamectin B1a;[3H]-Abamectin B1a;22,23-dihydroavermectinh B1a;abamectin component B1a;Abamectin komponente B1a;Abamectina [Spanish];Abamectine [French];Abamectinum [Latin];Antibiotic C 076B1a;Avermectin B(1)a;Caswell No. 063AB;Vertimec(R)018SC;Spiro[11,15-methano-2H,13H,17H-furo[4,3,2-pq][2,6]benzodioxacyclooctadecin-13,2'-[2H]pyran],avermectin A1a deriv.;L676863
Cas No.
65195-55-3
分子式
C48H72O14
分子量
873.09
包装储存
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
生物活性

Avermectin B1a is an antiparasitic agent that paralyzes nematodes without causing hypercontraction or flaccid paralysis.

性状

Solid

体外研究(In Vitro)

[H]AVM B1a preferentially binds to synaptic membranes from several regions of rat brain. [H]AVM B1a specific binding to intact monolayers of granule cells increases rapidly with time of incubation and reaches equilibrium after approximately 20 min at 24°C. Higher concentrations of [H]AVM B1a leads to markedly greater nonspecific binding, 60% at 25 nM. Various AVM analogs also produce concentration-dependent inhibition of [H]AVM B1a binding in intact cerebellar neurons. AVM B1a and moxidectin are similar in potency (IC50 values, 120 and 126 nM, respectively). AVMB1a-stimulated chloride efflux from mouse brain synaptic vesicles results from the activation of GABA-insensitive chloride channels and that this action is distinct from their previously documented effects on GABA-gated chloride channels in mouse brain preparations.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

体内研究(In Vivo)

Bacteria are significantly inhibited when the AVM B1a concentration is higher than 83.3 mg/kg, while fungi are less impaired in soil. Soil respiration is also inhibited by high concentration AVM B1a, which differs with soil types. The half lethal dosage (LD50) of AVM B1a to soil earthworm is estimated as 4.63 mg × cm in filter paper contact test, and as 24.13 and 17.06 mg/kg, respectively after treated 7 and 14 days in artificial soil. Iin artificial soil, the LC50 of AVM B1a on earthworms are 24.1 mg/kg and 17.1 mg/kg, respectively, for 7 and 14 days. About 80.0% and 94.8% of the accumulated AVM B1a are eliminated respectively in two groups within 1 day after they are exposed to AVM B1a-free soil, but a trace amount of AVM B1a is found for a relative long time in earthworms.

Medlife has not independently confirmed the accuracy of these methods. They are for reference only.

运输条件

Room temperature or refrigerated transportation.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
参考文献
溶解度数据
体外研究: 

DMSO : 25 mg/mL (28.63 mM; ultrasonic and warming and heat to 60°C)

配制储备溶液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 1.1454 mL 5.7269 mL 11.4537 mL
5 mM 0.2291 mL 1.1454 mL 2.2907 mL
10 mM 0.1145 mL 0.5727 mL 1.1454 mL
*

产品不同,其溶解度不同。建议根据产品选择合适的溶剂配制储备溶液;配成溶液后,建议分装保存,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, 6 months; -20°C, 1 month。-80°C 储存时,建议在 6 个月内使用,-20°C 储存时,建议在 1 个月内使用。

体内研究:

建议根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都建议先按照 体外研究 方式配制澄清的储备液,再依次添加助溶剂:

——为保证实验结果的可靠性,澄清的储备液可以根据储存条件,适当保存;体内实验的工作液,建议您现用现配,当天使用; 以下溶剂前显示的百
分比是指该溶剂在您配制终溶液中的体积占比;如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶

  • 1.

    建议依照次序添加每种溶剂: 10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (2.86 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (2.86 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 400 μL PEG300 中,混合均匀;向上述体系中加入50 μL Tween-80,混合均匀;然后继续加入 450 μL生理盐水定容至 1 mL。

    将 0.9 g 氯化钠,完全溶解于 100 mL ddH?O 中,得到澄清透明的生理盐水溶液
  • 2.

    建议依照次序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (2.86 mM); Clear solution

    此方案可获得 ≥ 2.5 mg/mL (2.86 mM,饱和度未知) 的澄清溶液,此方案不适用于实验周期在半个月以上的实验。

    以 1 mL 工作液为例,取 100 μL 25.0 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

*
搜索质检报告(COA)

1:一般建议:溶解度为Medlife测试数据,可能与文献描述存在差异。这是由于生产工艺和批次不同产生的正常现象。为了使其更好的溶解,请用37℃加热试管并在超声波水浴中震动片刻。不同批次产品溶解度各有差异,仅做参考,具体以实验方案为准。

2:储存条件:粉末-20°C一般情况可以保存3年,溶于溶剂-80°C一般情况可以保存1年。不同产品及不同批次产品可能存在差异,请细致阅读产品信息,并辅助参考相关文献描述。

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