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位置:首页 > 品牌 > Sigma-Aldrich > 2,3,5-氯化三苯基四氮唑

2,3,5-Triphenyltetrazolium Chloride

四氮唑红

品牌
Millipore
CAS
298-96-4
货号
1.08380
规格纯度
Color indicator. Supplement in culture media for the microbiological analysis of food and water samples
参考价格
927.24 *本价格含增值税费
促销
服务
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  • 包邮
  • 增值税票
数量
-+
产品名称:
298-96-4
2,3,5-Triphenyltetrazolium Chloride
TTZ
Tetrazolium Red
TTC, TT
TPTZ
2,3,5-氯化三苯基四氮唑
四氮唑红
产品介绍:

产品说明

一般描述

2,3,5-triphenyltetrazolium chloride (TTC) is a dye largely used for enumeration of microbial colonies in solid culture media, being a key component of the dry rehydratable film system used for microbiological analysis of food. This dye is colorless in the oxidized form and red when reduced by microorganisms, due to formation of formazan. Live microorganisms reduce TTC by enzymatic action, forming red color formazan that is kept inside granules in the cells.

应用

2,3,5-triphenyltetrazolium chloride (TTC) is an indicator recommended for the microbiological analysis of food.

分析说明

Assay (perchloric acid titration, calculated on dried substance): ≥ 98 %
Identity (UV/VIS-Spectrum): passes test
Absorption maximum λmax. (water): 245 - 248 nm
Spec. Absorptivity A 1%/1cm (λmax; 0,01 g/l; water; calculated on dried substance): ≥ 770
TLC-Test: passes test
Loss on drying (70 °C; ≤ 1 hPa): ≤ 0.5 %
Suitability for testing the germinability of seeds: passes test
Suitability for microbiology: passes test

基本信息

经验(实验)分子式C19H15ClN4
分子量334.80
Beilstein3923356
MDL编号MFCD00011963

产品性质

质量水平200
测定≥98% (calculated on dried substance, perchloric acid titration)
形式solid
pH值(酸碱度)3.7 (20 ℃, 10 g/L in H2O)
mp243 ℃ (decomposition)
溶解性 150 g/L
堆积密度230 kg/m3
application(s)microbiology
储存温度2-30℃
SMILES string[Cl-].c1ccc(cc1)-c2nn(-c3ccccc3)[n+](n2)-c4ccccc4
InChI1S/C19H15N4.ClH/c1-4-10-16(11-5-1)19-20-22(17-12-6-2-7-13-17)23(21-19)18-14-8-3-9-15-18;/h1-15H;1H/q+1;/p-1
InChI keyPKDBCJSWQUOKDO-UHFFFAOYSA-M

安全信息

象形图GHS02GHS07
警示用语:Danger
危险声明H228 - H315 - H319
预防措施声明P210 - P240 - P241 - P264 - P302 + P352 - P305 + P351 + P338
危险分类Eye Irrit. 2 - Flam. Sol. 1 - Skin Irrit. 2
储存分类代码4.1B - Flammable solid hazardous materials
WGKWGK 3

Sigma-Aldrich

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