描述
TTC 红四氮唑(2,3,5-氯化三苯基四氮唑)
搜索关键词:
TTC/TTZ/TPTZ红四氮唑;Redox indicator氧化还原指示剂;Cellular respiration细胞呼吸;Dehydrogenases脱氢酶;TPF (1,3,5-triphenylformazan) 1,3,5-三苯基甲臜;CAS:298-96-4;
TTC法/TTC染色实验(TTC Assay,TTC test,Tetrazolium test)
——是指氧化还原指示剂TTC(红四氮唑,2,3,5-三苯基氯化四氮唑,本身处于氧化态是无色的,活细胞(组织)内脱氢酶(特别是线粒体内的琥珀酸脱氢酶)将TTC作为受氢体使之还原生成红色的TPF(1,3,5- triphenylformazan,1,3,5-三苯基甲臜,CAS:531-52-2)(作用机理见下图),利用这一特性,使其能用来鉴别有代谢活力和无代谢活力的组织(细胞)。
产品应用:
1)用于植物根系活力测定;
定性检测方法:1% TTC溶液:0.4M琥珀酸:磷酸缓冲液=1:5:4混合,浸没根部,37℃暗处孵育1-3h,观察着色情况。结果:新根尖端或细侧根明显变为红色,表明这些部位有脱氢酶存在,有细胞代谢活力。
2)用作种子活力测定;
定性检测方法:0.5%TTC溶液,浸没剥去种皮(勿伤害种胚)的种子,恒温箱(30-35℃)暗处孵育0.5-1h左右。染色结束,倒去TTC溶液,用清水清洗种子1-2次,观察种胚染色情况。结果:凡种胚全部或大部分被染红色即为有活力种子,不被染色的为死种子。
3)用作花粉活力测定;
定性检测方法:0.5%TTC溶液;将花粉取少许置于干净载玻片上,加1-2滴0.5%TTC溶液,搅匀后盖上盖玻片,以清水为对照,37℃恒温箱暗处孵育0.5h左右,镜检。结果:花粉死亡不能被染色;花粉生命力衰退或部分丧失则染色较浅或局部被染色;根据花粉染色的深浅程度来鉴定花粉的生命力。
4)用作微生物生长测定;
定性检测方法:1%无菌TTC溶液;预热到50℃左右,按照取1ml 1%TTC溶液到100ml冷却到50-60℃的固体/液体培养基比例来使用。可用于大肠型细菌的计数和鉴定。
5)用作评价脑缺血损伤程度,对脑组织染色以检测梗塞面积;
Chintamani Narasinh Joshi et al. An optimized triphenyltetrazolium chloride method for identification of cerebral infarcts.Brain Research Protocols Volume 13, Issue 1, April 2004, Pages 11-17
Eric J. Goldlust et al. Automated Measurement of Infarct Size With Scanned Images of Triphenyltetrazolium Chloride–Stained Rat Brains. Stroke. 1996;27:1657-1662【2% TTC in 0.1 mol/L PBS (pH adjusted to 7.4), 37°C, 10min】
Kazuo Isayama et al. Evaluation of 2,3,5 -Triphenyltetrazolium Chloride Staining To Delineate Rat Brain Infarcts. Stroke Vol 22, No 11 November 1991【The TTC solution (2% by weight) was prepared with 37°C phosphate buffer (0.2 M Na2HPO4 and 0.2M NaH2PO4, pH 7.4-7.6) immediately before use. Because TTC is light sensitive, solutions must be masked with aluminum foil.】
Anke Popp et al. Identification of Ischemic Regions in a Rat Model of Stroke. PLoS ONE. 2009; 4(3): e4764.【2% TTC in 0.9% NaCl at 37°C for 10 min】
6)用作心脏组织染色以测定急性损害程度;
Hoffmann U et al. Acute Myocardial Infarction: Contrast-enhanced Multi–Detector Row CT in a Porcine Model. Radiology. 2004 Jun;231(3):697-701. Epub 2004 Apr 29.
Kirschner et al. Differentiation of acute and four-week old myocardial infarct with Gd(ABE-DTTA)-enhanced CMR. Journal of Cardiovascular Magnetic Resonance 201012:22.
Zhonglin Liu et al. Quantitative Analysis of Acute Myocardial Infarct in Rat Hearts with Ischemia-Reperfusion Using a High-Resolution Stationary SPECT System. J Nucl Med July 1, 2002 vol. 43 no. 7 933-939【1% TTC PBS solution, pH 7.4, at 37°C for 20 min】
产品特性
1)CAS NO:298-96-4
2)同义名:2,3,5,Triphenyl-2H-Tetrazolium Chloride 2,3,5-三苯基-2H-四唑盐酸盐;2,3,5-Triphenyltetrazolium Chloride 2,3,5-氯化三苯基四氮唑;Tetrazolium red红四氮唑,红四唑,四氮唑红;TPTZ;TTZ;
3)分子式:C19H15ClN4
4)分子量:334.8g/mol
5)外观:类白色至浅黄色结晶
6)纯度:>98%
7)溶解性:溶于水(10mg/ml),乙醇(10mg/ml)和丙酮,不溶于乙醚
8)化学结构式:
订购信息:
货号 |
产品名称 |
规格 |
价格(元) |
MS4001-5G |
TTC 2,3,5-氯化三苯基四氮唑 |
5g |
155 |
MS4001-25G |
TTC 2,3,5-氯化三苯基四氮唑 |
25g |
558 |
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货号 |
产品名称 |
规格 |
价格(元) |
MM1504-100ML |
4% Paraformaldehyde 4%多聚甲醛 |
100ml |
60 |
MM1504-500ML |
4% Paraformaldehyde 4%多聚甲醛 |
500ml |
160 |
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