Acetaminophen (Synonyms:对乙酰氨基酚; Paracetamol; 4-Acetamidophenol; 4'-Hydroxyacetanilide)
目录号 : KM14427 CAS No. : 103-90-2 纯度 : 98%

Acetaminophen (Paracetamol) 是选择性环氧合酶-2 (COX-2) 的抑制剂,IC50 值为 25.8 μM。Acetaminophen 是一种有效的肝 N-乙酰转移酶 2 (NAT2) 抑制剂。Acetaminophen 是广泛使用的解热和止痛剂。

规格 价格 是否有货 数量
500mg
In-stock
5g
In-stock
10g
In-stock
50g 询价 In-stock

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生物活性

Acetaminophen (Paracetamol) is a selective cyclooxygenase-2 (COX-2) inhibitor with an IC50 of 25.8 μM; is a widely used antipyretic and analgesic agent. Acetaminophen is a potent hepatic N-acetyltransferase 2 (NAT2) inhibitor.

体外研究

In vitro, acetaminophen elicites a 4.4-fold selectivity toward COX-2 inhibition (IC50 113.7 μM for COX-1; IC50 25.8 μM for COX-2). Following oral administration of the drug, maximal ex vivo inhibitions are 56% (COX-1) and 83% (COX-2). Acetaminophen plasma concentrations remaine above the in vitro IC50 for COX-2 for at least 5 h postadministration. Ex vivo IC50 values (COX-1: 105.2 μM; COX-2: 26.3 μM) of acetaminophen compared favorably with its in vitro IC50 values. In contrast to previous concepts, acetaminophen inhibited COX-2 by more than 80%, i.e., to a degree comparable to nonsteroidal antiinflammatory drugs (NSAIDs) and selective COX-2 inhibitors. However, a >95% COX-1 blockade relevant for suppression of platelet function is not achieved. MTT assay shows that Acetaminophen (APAP) in a dose of 50 mM significantly (p<0.001) reduces cell viability to 61.5±6.65%. Interestingly, the significant (p<0.01) increase in cell viability to 79.7±2.47% is observed in the Acetaminophen/HV110 co-treated cells, compared to Acetaminophen treated cells.

体内研究

Administering Acetaminophen (250 mg/kg, orally) to the mice causes significant (p<0.001) liver damage and necrosis of cells as evidenced by the elevated serum hepatic enzymes alanine aminotransferase (ALT), aminotransferase (AST), alkaline phosphatase (ALP), and gamma-glutamyl transferase (γGT) compared with normal group. Conversely, effects of pretreatment with different doses of citral (125, 250, and 500 mg/kg) exhibited a significant (p<0.05) decrease in serum activities of ALT (91.79%, 93.07%, and 95.61%, resp.), AST (93.40%, 91.89%, and 96.52%, resp.), ALP (39.29%, 37.07%, and 59.80%, resp.), and γGT (92.83%, 91.59%, and 93.0%, resp.), when compared to the Acetaminophen group. Similar results were found in pretreatment with SLM on the activity of ALT (95.90%), AST (95.03%), ALP (70.52%), and γGT (92.69%).

分子式
C8H9NO2
分子量
151.16
CAS号
103-90-2
中文名称
对乙酰氨基酚;乙酰氨基酚;扑热息痛;退热净;醋氨酚;对醋氨酚;索密痛;乙酰氨基苯酚;二醋洛尔
运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years

*该产品在溶液状态不稳定,建议您现用现配,即刻使用。

溶解性数据
In Vitro: 

DMSO : 250 mg/mL (1653.88 mM; Need ultrasonic)

H2O : 10 mg/mL (66.16 mM; Need ultrasonic)

配制储备液
浓度 溶剂体积 质量 1 mg 5 mg 10 mg
1 mM 6.6155 mL 33.0775 mL 66.1551 mL
5 mM 1.3231 mL 6.6155 mL 13.2310 mL
10 mM 0.6616 mL 3.3078 mL 6.6155 mL
*

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;该产品在溶液状态不稳定,建议您现用现配,即刻使用。

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: 0.5% CMC-Na/saline water

    Solubility: 10 mg/mL (66.16 mM); Suspended solution; Need ultrasonic

  • 2.

    请依序添加每种溶剂: saline  0.5% Tween-80

    Solubility: 10 mg/mL (66.16 mM); Clear solution; Need ultrasonic

  • 3.

    请依序添加每种溶剂: PBS

    Solubility: 6.67 mg/mL (44.13 mM); Clear solution; Need ultrasonic

  • 4.

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

    Solubility: ≥ 2.08 mg/mL (13.76 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (13.76 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 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。

  • 5.

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

    Solubility: ≥ 2.08 mg/mL (13.76 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (13.76 mM,饱和度未知) 的澄清溶液。

    以 1 mL 工作液为例,取 100 μL 20.8 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。

  • 6.

    请依序添加每种溶剂: 10% DMSO    90% corn oil

    Solubility: ≥ 2.08 mg/mL (13.76 mM); Clear solution

    此方案可获得 ≥ 2.08 mg/mL (13.76 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 20.8 mg/mL 的澄清 DMSO 储备液加到 900 μL玉米油中,混合均匀。

临床试验
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