5′-N-Ethylcarboxamidoadenosine (NECA) is a nonselective adenosine receptor agonist.

Adenosine receptor^[1]

After the administration of 5′-N-Ethylcarboxamidoadenosine (NECA), the mean number of cocaine infusions obtained per session is decreased significantly in a dose-dependent manner [5′-N-Ethylcarboxamidoadenosine (NECA): F(4,12)=14.9; P<0.001]. The administration of 5'-N-Ethylcarboxamidoadenosine (NECA) [F(4,12)=16.1; P<0.001] results in a significant increase in latencies above values obtained for vehicle treatment^[1]. Daily i.p. injection of 5′-N-Ethylcarboxamidoadenosine (NECA) at 0.3 mg/kg/day for two weeks reduces malondialdehyde (MDA) levels in diabetic rats, but does not affect control rats. Daily treatment with NECA (0.3 mg/kg/day, i.p. for two weeks) reduces diabetes-induced gene expression of tumor necrosis factor (TNF)-α and interleukin (IL)-18 in diabetic rats, but does not affect control rats. Daily i.p. injection of 5′-N-Ethylcarboxamidoadenosine (NECA) at 0.3 mg/kg/day for two weeks also blocks the activation of JNK MAPK in diabetic rats, but does not affect control rats^[2].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

308.29

C₁₂H₁₆N₆O₄

35920-39-9

Room temperature in continental US; may vary elsewhere.

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

In Vitro: 

DMSO : 62.5 mg/mL (202.73 mM; Need ultrasonic)

H₂O : < 0.1 mg/mL (ultrasonic;warming;heat to 60°C) (insoluble)

*

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, 6 months; -20°C, 1 month。-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。

In Vivo:

请根据您的实验动物和给药方式选择适当的溶解方案。以下溶解方案都请先按照 In Vitro 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.

  请依序添加每种溶剂： 10% DMSO    40% PEG300    5% Tween-80    45% saline

  Solubility: ≥ 2.5 mg/mL (8.11 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (8.11 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 ddH₂O 中，得到澄清透明的生理盐水溶液

• 2.

  请依序添加每种溶剂： 10% DMSO    90% (20% SBE-β-CD in saline)

  Solubility: ≥ 2.5 mg/mL (8.11 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (8.11 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 900 μL 20% 的 SBE-β-CD 生理盐水水溶液中，混合均匀。

  将 2 g 磺丁基醚 β-环糊精加入 5 mL 生理盐水中，再用生理盐水定容至 10 mL，完全溶解，澄清透明
• 3.

  请依序添加每种溶剂： 10% DMSO    90% corn oil

  Solubility: ≥ 2.5 mg/mL (8.11 mM); Clear solution

  此方案可获得 ≥ 2.5 mg/mL (8.11 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。

• [1]. Knapp CM, et al. Adenosine agonists CGS 21680 and NECA inhibit the initiation of cocaine self-administration. Pharmacol Biochem Behav. 2001 Apr;68(4):797-803.

  [2]. Elsherbiny NM, et al. Reno-protective effect of NECA in diabetic nephropathy: implication of IL-18 and ICAM-1. Eur Cytokine Netw. 2012 Jul-Sep;23(3):78-86.

Male Wistar rats are used in this experiment. These animals range in weight between 350 and 425 g. They are housed individually in hanging wire cages under a 12-h light/dark cycle. The effects of 5′-N-Ethylcarboxamidoadenosine (NECA) are tested in four rats. In the experiment, either 5′-N-Ethylcarboxamidoadenosine (NECA) (5, 7.5, 10, 20 μg/kg) or vehicle (saline) is administered intraperitoneally 15 min prior to the start of test sessions. 5′-N-Ethylcarboxamidoadenosine (NECA) is administered following a random order crossover design. In most cases, animals are tested twice with the same dose^[1].

上海金畔生物科技有限公司 has not independently confirmed the accuracy of these methods. They are for reference only.

• [1]. Knapp CM, et al. Adenosine agonists CGS 21680 and NECA inhibit the initiation of cocaine self-administration. Pharmacol Biochem Behav. 2001 Apr;68(4):797-803.

  [2]. Elsherbiny NM, et al. Reno-protective effect of NECA in diabetic nephropathy: implication of IL-18 and ICAM-1. Eur Cytokine Netw. 2012 Jul-Sep;23(3):78-86.