
4-methyl ErlotinibEGFR inhibitor |
Sample solution is provided at 25 µL, 10mM.
































Quality Control & MSDS
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- Purity ≥ 95.00%
- COA (Certificate Of Analysis)
- MSDS (Material Safety Data Sheet)
Chemical structure


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Cas No. | 1346601-52-2 | SDF | Download SDF |
Synonyms | N/A | ||
Chemical Name | N-(3-ethynyl-4-methylphenyl)-6,7-bis(2-methoxyethoxy)-4-quinazolinamine | ||
Canonical SMILES | COCCOC(C(OCCOC)=C1)=CC2=C1C(NC3=CC(C#C)=C(C)C=C3)=NC=N2 | ||
Formula | C23H25N3O4 | M.Wt | 407.5 |
Solubility | ≤0.25mg/ml in ethanol;25mg/ml in DMSO;50mg/ml in dimethyl formamide | Storage | Store at -20°C |
Physical Appearance | A crystalline solid | Shipping Condition | Evaluation sample solution : ship with blue ice.All other available size:ship with RT , or blue ice upon request |
General tips | For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months. |
4-methyl Erlotinib is an analog of erlotinib by the addition of a methyl group at the four position of the phenyl group. Erlotinib is a tyrosine kinase inhibitor which acts on the epidermal growth factor receptor (EGFR) [1].
The epidermal growth factor receptor (EGFR) autocrine pathway has been important for cancer development and progression, including cell proliferation, apoptosis, angiogenesis, and metastatic spread [2].
Erlotinib inhibits EGFR-associated kinase activity by binding to the EGF-activated receptor, with the phenyl group at one end sequestered in a hydrophobic pocket of the kinase domain and the ether linkages at the opposite end projecting into solvent [1].
Erlotinib can prolong survival in patients with non–small-cell lung cancer after first-line or second-line chemotherapy [3].
References:[1] Stamos, J. ,Sliwkowski, M.X. and Eigenbrot, C. Structure of the epidermal growth factor receptor kinase domain alone and in complex with a 4-anilinoquinazoline inhibitor. The Journal of Biological Chemisty 277(48), 46265-46272 (2002).[2] Ciardiello F, Tortora G. A novel approach in the treatment of cancer: targeting the epidermal growth factor receptor[J]. Clinical Cancer Research, 2001, 7(10): 2958-2970.[3] Shepherd F A, Rodrigues Pereira J, Ciuleanu T, et al. Erlotinib in previously treated non–small-cell lung cancer[J]. New England Journal of Medicine, 2005, 353(2): 123-132.
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不知道发在这里合适不,实在是求助无门啊!版主手下留情。
一、探针DNA标记方法
步骤 :
1.10ng~3ugDNA每管,双蒸水定量至总体积15ul
2.沸水水浴10分钟后迅速冰浴
3.加入 5号试剂 2ul , 6号试剂 2ul ,7号试剂 1ul
4.37度1小时~20小时
5.中止反应 加2ul 0.2M EDTA (pH 8.0) 和/或 65度 水浴 10分钟
二、标记效率检测
(一) 试剂配置
Solution Composition Preparation
Washing buffer 0.1 M Maleic acid, 0.15 M NaCl; pH 7.5 (20° C); 0.3% (v/v) Tween 20
Maleic acid buffer 0.1 M Maleic acid, 0.15 M NaCl; adjustwith NaOH (solid) to pH 7.5 (20° C)
Detection buffer 0.1 M Tris-HCl, 0.1 M NaCl, pH 9.5 (20° C)
TE-buffer 10 mM Tris-HCl, 1 mM EDTA, pH 8.0
Blocking stock solution Dissolve Blocking reagent (bottle 10) 10% (w/v) in Maleic
(10 × conc.) acid buffer underconstantly stirring on a heating block(65°C) or heat in a microwave oven,autoclave. The solution remains opaque
Blocking solution Prepare a 1 × working solution by dilutingthe 10 × Blocking solution 1:10in Maleic acid buffer.
Antibody solution Centrifuge Anti-Digoxigenin-AP(vial 8) for 5 min at 10 000 rpm in theoriginal vial prior to each use, and pipet the necessary amount carefully from thesurface. Dilute Anti-
Digoxigenin-AP 1: 5 000 (150 mU/ml) in Blocking solution.
Colorsubstrate Add 40 _l of NBT/BCIP (vial 9) to 2 ml of Detection buffer.
solution Note: Store protected from light!
(二)对照的标记DNA(4号试剂)系列稀释
(三)步骤
1、取以上制备的管2~9各1ul,以及自己标记的探针1ul,点到一小片尼龙膜
2、通过紫外线或者120度半小时使核酸交连到膜上
3、膜置塑料盒中加Maleic acid buffer 20ml ,15~25度轻摇孵育2分钟
4、10ml Blocking solution 孵育30分钟
5、10ml Antibody solution 孵育30分钟
6、10ml Washing buffer 洗2次,每次15分钟
7、10ml Detection buffer中平衡2~5分钟
8、膜在2ml新鲜配制的 Colorsubstrate solution 中避光孵育。显色期间避免摇动
9、中止反应 用TE-buffer或者双蒸水洗5分钟
蛋白酶K预处理
三、样品检测与杂交
(一) 步骤
1、 稀释供试品及阳性对照DNA,点膜
2、 通过紫外线或者120度半小时使核酸交连到膜上
3、 将标记好的探针稀释到约25ng/ml, 煮沸5分钟后迅速冰浴
4、膜放入预热好的预杂交液(3.5ml/100cm2)中,充分混匀,避免起泡
5、倒掉预杂交液,加入杂交液及已变性的探针。杂交温度下至少孵育6小时
四、洗膜
1、2 × SSC, 0.1% SDS , 15-25° C,洗膜2次,每次5分钟。
2、0.5× SSC, 0.1% SDS ,预热至65~68° C,洗膜2次,每次5分钟
五、结果检测
(一) 试剂配制
Solution Composition Preparation
Washing buffer 0.1 M Maleic acid, 0.15 M NaCl; pH 7.5 (20° C); 0.3% (v/v) Tween 20
Maleic acid buffer 0.1 M Maleic acid, 0.15 M NaCl; adjustwith NaOH (solid) to pH 7.5 (20° C)
Detection buffer 0.1 M Tris-HCl, 0.1 M NaCl, pH 9.5 (20° C)
TE-buffer 10 mM Tris-HCl, 1 mM EDTA, pH 8.0
Blocking stock solution Dissolve Blocking reagent (bottle 10) 10% (w/v) in Maleic
(10 × conc.) acid buffer underconstantly stirring on a heating block(65°C) or heat in a microwave oven,autoclave. The solution remains opaque
Blocking solution Prepare a 1 × working solution by dilutingthe 10 × Blocking solution1:10in Maleic acid buffer.
Antibody solution Centrifuge Anti-Digoxigenin-AP(vial 8) for 5 min at 10 000 rpm in theoriginal vial prior to each use, and pipet the necessary amount carefully from thesurface. Dilute Anti-
Digoxigenin-AP 1: 5 000 (150 mU/ml) in Blocking solution.
Colorsubstrate Add 40 _l of NBT/BCIP (vial 9) to 2 ml of Detection buffer.
solution Note: Store protected from light!
(二) 步骤
1、Washing buffer洗膜1~5分钟
2、100ml Blocking solution 孵育30分钟
3、20ml Antibody solution 孵育30分钟
4、100ml Washing buffer 洗2次,每次15分钟
5、20ml Detection buffer中平衡2~5分钟
6、膜在10ml新鲜配制的 Colorsubstrate solution 中避光孵育。显色期间摇动
7、中止反应 用TE-buffer或者双蒸水50ml洗5分钟展开
荧光标记物常用的有几十种,比如FITC, PE等等,各个生产厂家还有自己的专利产品
2、 血浆:EDTA、柠檬酸盐、肝素血浆可用于检测。1000×g离心30分钟去除颗粒。
3、 细胞上清液:1000×g离心10分钟去除颗粒和聚合物。
4、 组织匀浆:将组织加入适量生理盐水捣碎。1000×g离心10分钟,取上清液。
5、 保存:如果样品不立即使用,应将其分成小部分-70℃保存,避免反复冷冻。尽可能的不要使用溶血或高血脂血。如果血清中大量颗粒,检测前先离心或过滤。不要在37℃或更高的温度加热解冻。应在室温下解冻并确保样品均匀地充分解冻。
此IBL试剂盒能用于小鼠血清,EDTA血浆,细胞上清中白介素-6的定量检测 试剂盒成分 1 预包被板: 抗小鼠白介素-6兔子IgG,亲合纯化 96T 2 酶标记抗体: (30倍浓缩)HRP标记抗小鼠白介素-6兔子IgG,亲合纯化 0.4mL x 1 3 标准品: 重组小鼠白介素-6 0.5mL x 2 4 EIA缓冲液: 含1% BSA, 0.05%吐温20 BPS 30mL x 1 5 标记抗体稀释液: 含1% BSA, 0.05%吐温20 BPS 12mL x 1 6 显色剂: TMB底物液 15mL x 1 7 终止液: 1N硫酸 12mL x 1 8 浓缩洗涤液: (40倍浓缩) 含1% BSA, 0.05%吐温20 BPS 50mL x 1 操作说明 1实验所需器材(但试剂盒没有提供) 酶标仪(450nm) 微移液管及其吸嘴 量筒及烧杯 去离子水 冰箱(4°C) 坐标纸(log/log) 吸水纸 试管(用于标准品稀释) 温育箱(37°C ± 1°C) 洗瓶 (用于洗板) 一次性试剂管(用于浓缩酶标记抗体和显色剂)向左转|向右转
而放射性核素标记,是对体外诊断试剂的某些元素进行放射性特征性标记,便于检测而已,这类的放射性强度不大,危害不高

